2011 Mercedes-benz CL Class Owners Manual

an almost vertical position (Y page 92). X Pull the seat belt smoothly through belt

sash guide :.

X Without twisting it, guide the shoulder

section of the seat belt across the middle of your shoulder and the lap section across your hips.

X Engage belt tongue ; in buckle =. X If necessary, pull upwards on the shoulder section of the seat belt to tighten the belt across your body.

All seat belts in the vehicle, except the driver's seat belt, are equipped with a special seat belt retractor to secure child restraint systems properly. For further information on "Special seat belt retractors", see (Y page 58). For more information about releasing the seat belt with release button ?, see "Releasing seat belts" (Y page 54).

Releasing seat belts X Press release button ? (Y page 53) and guide belt tongue ; back towards belt sash guide :.

! Make sure that the seat belt is fully rolled up. Otherwise, the seat belt or belt tongue will be trapped in the door or in the seat mechanism. This could damage the door, the door trim panel and the seat belt. Damaged seat belts can no longer fulfill their protective function and must be replaced. Consult an authorized Mercedes- Benz Center.

Belt warning for driver and front passenger Regardless of whether the driver's and front- passenger seat belts have already been fastened, the 7 seat belt warning lamp lights up for six seconds each time the engine is started. It then goes out once the driver and

the front passenger have fastened their seat belts. If the driver's seat belt is not fastened after the engine is started, an additional warning tone will sound. The warning tone goes out after approximately six seconds or once the driver's seat belt is fastened. If, after six seconds, the driver or front- passenger have not fastened their seat belts and the doors are closed: Rthe 7 seat belt warning lamp remains illuminated as long as either the driver's or front-passenger seat belt is not fastened.

Rif the vehicle speed exceeds 15 mph

(25 km/h), the 7 seat belt warning lamp lights up. Additionally, a warning tone will sound with increasing intensity for a maximum of 60 seconds or until the driver's and front-passenger seat belt are fastened.

If the driver/front passenger unfasten their seat belt while the vehicle is in motion, the 7 seat belt warning lamp lights up and a warning tone sounds again. The warning tone ceases even if the driver or front passenger have still not fastened their seat belt after 60 seconds. The 7 seat belt warning lamp stops flashing but remains illuminated. After the vehicle comes to a standstill, the warning tone is reactivated and the 7 seat belt warning lamp flashes again if the vehicle speed again exceeds 15 mph (25 km/h) . The 7 seat belt warning lamp only goes out if: Rboth the driver and the front passenger

have fastened their seat belts.

or Rthe vehicle is stationary and a door is open. i For more information on the 7 seat

belt warning lamp, see "Indicator and warning lamps in the instrument cluster, seat belt" (Y page 376).

Occupant safety

55

direction during the initial stages of the impact

Rin the event of a side impact, on the side

opposite the impact if the vehicle decelerates or accelerates rapidly in a lateral direction

Rin certain situations, if the vehicle

overturns and the system determines that it can provide additional protection

If the air bags are deployed, you will hear a bang and a small amount of powder may also be released. Only in rare cases will the bang affect your hearing. The powder that is released generally does not constitute a health hazard. The 6 SRS warning lamp lights up. G Warning Pyrotechnic ETDs that were activated must be replaced. For your safety, when disposing of the pyrotechnic ETDs always follow our safety instructions. These are available at any authorized Mercedes-Benz Center.

Automatic comfort-fit feature The front seat belts have an automatic comfort-install feature. The automatic comfort-install feature reduces the retraction force of the seat belts. This results in increased seat belt comfort.

Emergency Tensioning Devices and seat belt force limiters The seat belts are equipped with belt tensioners and belt force limiters. ! If the front-passenger seat is not

occupied, do not engage the seat belt tongue in the buckle on the front- passenger seat. Otherwise, the Emergency Tensioning Device could be triggered in the event of an accident.

The belt tensioners tighten the seat belts in an accident, pulling them close against the body. Belt tensioners do not correct incorrect seat positions or incorrectly fastened seat belts. Belt tensioners do not pull vehicle occupants back towards the backrest. Seat belt force limiters, when triggered, help to reduce the peak force exerted by the seat belt on the vehicle occupant. The front belt force limiters are synchronized with the front air bags, which take on a part of the deceleration force. Thus, the force exerted on the occupant is distributed over a greater area. The belt tensioners can only be activated when: Rthe ignition is switched on. Rthe restraint systems are operational; see

"SRS warning lamp" (Y page 40).

Rthe belt tongue is engaged in the buckle on

each of the three-point seat belts in the front.

Rthe front-passenger seat is occupied and the belt tongue is engaged in the buckle on the front-passenger side.

The belt tensioners on the seats in the rear compartment are triggered independently of the lock status of the seat belts. The belt tensioners are triggered depending on the type and severity of an accident: Rin the event of a head-on or rear-end collision, if the vehicle decelerates or accelerates rapidly in a longitudinal

56

Children in the vehicle

Children in the vehicle Important safety notes G Warning When leaving the vehicle, always remove the SmartKey from the ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could: Rinjure themselves on parts of the vehicle Rbe seriously or fatally injured through

excessive exposure to extreme heat or cold Rinjure themselves or cause an accident with

vehicle equipment that can be operated even if the SmartKey is removed from the ignition lock or removed from the vehicle, such as seat adjustment, steering wheel adjustment, or the memory function

If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic. Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned on these parts. G Warning! Do not carry heavy or hard objects in the passenger compartment or trunk unless they are firmly secured in place. Unsecured or improperly positioned cargo increases a child's risk of injury in the event of Rstrong braking maneuvers Rsudden changes of direction Ran accident

If an infant or child is traveling in the vehicle: X Secure the child using an infant or child

restraint system appropriate to the age and weight of the child.

X Make sure that the infant or child is

properly secured at all times while the vehicle is in motion.

Child restraint systems Important safety notes G Warning Observe "Important safety notes" (Y page 56). We recommend all infants and children be properly restrained using the child restraint systems at all times while the vehicle is in motion. The use of infant or child restraints is required by law in all 50 states, the District of Columbia, the U.S. territories and all Canadian provinces. Infants and small children should always be seated in an infant or child seat restraint system appropriate for the size and weight of the child. They must be properly secured in accordance with the manufacturer's installation instructions for the infant or child seat restraint system. All infant and child seat restraint systems must comply with the US Federal Motor Vehicle Safety Standards 213
and 225 and Canadian Motor Vehicle Safety Standards 213 and 210.2. A statement by the child restraint manufacturer of compliance with these standards can be found on the instruction label on the restraint system. You will also find the statement in the instruction manual provided with the child restraint system. When using an infant restraint system, child restraint system or booster seat, make sure to carefully read and follow all manufacturer's instructions for installation and use.

Please read the warning labels affixed to the interior of the vehicle or to the infant restraint or child restraint system. G Warning According to accident statistics, children are safer when properly restrained on the rear seats than on the front-passenger seat. Thus, we strongly recommend that children be placed in the rear seats whenever possible. Regardless of seating position, children 12
years old and under must be seated and properly secured in an appropriately sized child restraint system or booster seat recommended for the size and weight of the child. The infant or child restraint system must be properly secured with the vehicle's seat belt, the seat belt and Top Tether strap, or lower anchors and Top Tether strap, fully in accordance with the child seat manufacturer's instructions. Occupants, especially children, should always sit as upright as possible, wear the seat belt properly and use an appropriate sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. Children can be killed or seriously injured by an inflating air bag. Note the following important information when circumstances require you to place a child in the front- passenger seat: RYour vehicle is equipped with air bag technology designed to deactivate the front-passenger front air bag in your vehicle when the system senses the weight of a typical 12-month-old child or less along with the weight of a standard appropriate child restraint on the front-passenger seat. RA child in a rear-facing child restraint on the

front-passenger seat will be seriously injured or even killed if the front-passenger front air bag inflates in a collision which could occur under some circumstances, even with the air bag technology installed in your vehicle. The only means to eliminate

Children in the vehicle

57

this risk completely is never to place a child in a rear-facing child restraint in the front- passenger seat. We therefore strongly recommend that you always place a child in a rear-facing child restraint on the rear seat.

RIf you install a rear-facing child restraint on

the front-passenger seat, make sure the 42 indicator lamp is illuminated, indicating that the front- passenger front air bag is deactivated. Should the 42 indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 42
indicator lamp while driving to make sure the 42 indicator lamp is illuminated. If the 42 indicator lamp goes out or remains out, do not transport a child on the front-passenger seat until the system has been repaired. A child in a rear-facing child restraint on the front-passenger seat will be seriously injured or even killed if the front-passenger front air bag inflates.

RIf you place a child in a forward-facing child

restraint on the front-passenger seat: - move the seat as far back as possible - use the proper child restraint

recommended for the age, size and weight of the child

- secure child restraint with the vehicle's

seat belt according to the child seat manufacturer's instructions

RFor children larger than a typical 12-month- old child, the front-passenger front air bag can be activated or deactivated. G Warning Infants and small children should never share a seat belt with another occupant. During an accident, they could be crushed between the occupant and seat belt. A child's risk of serious or fatal injuries is significantly increased if the child restraints

58

Children in the vehicle

are not properly secured in the vehicle and/ or the child is not properly secured in the child restraint. Children too big for a toddler restraint must ride in seats using regular seat belts. Position the shoulder belt across the chest and shoulder, not face or neck. A booster seat may be necessary to achieve proper seat belt positioning for children over 41 lb (18 kg) until they reach a height where a lap/shoulder belt fits properly without a booster. When the child restraint is not in use, remove it from the vehicle or secure it with the seat belt to prevent the child restraint from becoming a projectile in the event of an accident.

Special seat belt retractor G Warning Observe "Important safety notes" (Y page 56). All seat belts in the vehicle, except the driver's seat belt, are equipped with a special seat belt retractor. When activated, the special seat belt retractor ensures that the seat belt cannot slacken after being fastened. Installing a child restraint system: X Always comply with the manufacturer's

installation instructions.

X Pull the seat belt smoothly from the inertia

reel.

X Engage the seat belt tongue in the belt

buckle.

Activating the special seat belt retractor: X Pull the seat belt out fully and let the inertia

reel retract it again. While the seat belt is retracting, you should hear a ratcheting sound. The special seat belt retractor function is enabled.

X Push down on the child restraint system to

take up any slack.

Removing a child restraint system/ deactivating the special seat belt retractor: X Always comply with the manufacturer's

installation instructions.

X Press the seat belt release button and guide the belt tongue to the belt outlet. The special seat belt retractor function is deactivated. G Warning Never release the seat belt buckle while the vehicle is in motion, since the special seat belt retractor will be deactivated.

LATCH-type child restraint (ISOFIX) in the rear G Warning Observe "Important safety notes" (Y page 56). G Warning Children that are too large for a child restraint must travel in seats using normal seat belts. Position shoulder belt across the chest and shoulder, not face or neck. In order to attain the correct seating position for children weighing over 41 lb (18 kg), it may be necessary to use a booster seat until they reach a height where a normal lap/shoulder seat belt lies properly across their bodies without the need for a booster seat. Install the child restraint system according to the manufacturer's instructions. The child restraint system must be installed firmly on both brackets. An incorrectly installed child restraint system can come loose in the event of an accident, causing the child to be severely or fatally injured. Child restraint systems/child restraint retaining brackets that are damaged or have suffered damage due to an impact must be replaced.

ISOFIX is a standardized securing system for specially designed child restraint systems on the rear seats. Securing rings for two LATCH- type (ISOFIX) child restraint systems are installed on the left and right of the rear seats. Use the vehicle's seat belts to install child restraint systems without the ISOFIX securing system. Follow the manufacturer's instructions for of child restraint systems.

Children in the vehicle

59

The Top Tether anchorages are located in the rear compartment behind the head restraints.

X Remove corresponding protective cap :

from the Top Tether anchorage.

X Place protective cap : in a suitable place

(e.g. in the glove box).

Installation instruction : indicates the installation point of securing ring 2. X Fold upholstered lining = and the Velcro

fastener upwards.

X Turn installation aid ? to a vertical

position, so that upholstered lining = does not fold back down.

X Install the LATCH-type (ISOFIX) child

restraint system on both securing rings ;. Comply with the manufacturer's instructions when installing the LATCH- type (ISOFIX) child restraint system.

Top Tether G Warning Observe "Important safety notes" (Y page 56). Top Tether provides an additional attachment point between the "LATCH" type child seat mount (ISOFIX) child restraint system and the rear seat. This can further reduce the risk of injury.

X Slide the head restraint upwards. X Route Top Tether belt ? under the head restraint between both head restraint bars. X Engage Top Tether hook = of Top Tether

belt ? into Top Tether anchorage ;. Make sure that: RTop Tether hook = is engaged in Top

Tether anchorage ;, as illustrated.

RTop Tether belt ? is not twisted. RTop Tether belt ? can move freely

between the rear seat backrest and the head restraint.

X Install the LATCH-type (ISOFIX) child

restraint system with Top Tether. Always comply with the manufacturer's

60

Panic alarm

installation instructions. Make sure that Top Tether belt ? is taut.

Panic alarm

The child restraint system with Top Tether belt ? has been removed: X Slide protective cap : onto Top Tether

anchorage ;.

Child-proof locks Override feature for the rear side windows G Warning Observe "Important safety notes" (Y page 56). G Warning When children ride on the vehicle's rear seats, activate the override switch. Otherwise the children could be injured, e.g. by trapping themselves in the rear side window.

X To activate/deactivate: press button :. If indicator lamp ; is lit, operation of the rear side windows is disabled. Operation is only possible using the switches in the driver's door. If indicator lamp ; is off, operation is possible using the switches in the rear compartment.

X To activate: press and hold !

button : for about one second. An alarm sounds and the exterior lighting flashes.

X To deactivate: press ! button :

again.

or X Insert the SmartKey into the ignition lock. or X Press the KEYLESS-GO Start-Stop button.

The KEYLESS-GO key must be in the vehicle.

i USA only:

This device complies with the part 15 of the FCC regulations. Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. This device must withstand any interference received, including interference that may cause undesired operation. Any unauthorized modification to this device could void the user's authority to operate the equipment.

i Canada only:

This device complies with the RSS-210
regulations of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference, and

2. This device must withstand any interference received, including interference that may cause undesired operation of the device. Any unauthorized modification to this device could void the user's authority to operate the equipment.

Driving safety systems Driving safety systems overview In this section, you will find information about the following driving safety systems: RABS (Anti-lock Braking System) RBAS (Brake Assist System) RBAS PLUS (Brake Assist System Plus*) RAdaptive brake lamps RESP® (Electronic Stability Program) REBD (Electronic Brake force Distribution) RADAPTIVE BRAKE RPRE-SAFE® Brake (vehicles with

DISTRONIC PLUS)

Important safety notes G Warning The following factors increase the risk of accidents: RExcessive speed, especially in turns RWet and slippery road surfaces RFollowing another vehicle too closely The driving safety systems described in this section cannot reduce these risks or prevent the natural laws of physics from acting on the vehicle. They cannot increase braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded. Only a safe, attentive, and skillful driver can prevent accidents. The capabilities of a vehicle equipped with the driving safety systems described in this

Driving safety systems

61

section must never be exploited in a reckless or dangerous manner which could jeopardize the user's safety or the safety of others. Always adjust your driving style to the prevailing road and weather conditions and keep a safe distance to other road users and objects on the street. If a driving system malfunctions, other driving safety systems may also switch off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear.

i In wintry driving conditions, always use winter tires (M+S tires) and if necessary, snow chains. Only in this way will the driving safety systems described in this section work as effectively as possible.

ABS (Anti-lock Braking System) Important safety notes G Warning Observe "Important safety notes" (Y page 61). G Warning Do not pump the brake pedal. Use firm, steady brake pedal pressure instead. Pumping the brake pedal defeats the purpose of the ABS and significantly reduces braking effectiveness.

ABS regulates brake pressure in such a way that the wheels do not lock when you brake. This allows you to continue steering the vehicle when braking. ABS works from a speed of about 5 mph (8 km/h) upwards, regardless of road- surface conditions. ABS works on slippery surfaces, even when you only brake gently. The ! warning lamp in the instrument cluster lights up when the ignition is switched on. It goes out when the engine is running.

62 Driving safety systems

Braking If ABS intervenes when braking, you will feel a pulsing in the brake pedal. X If ABS intervenes: continue to depress the

brake pedal with force until the braking situation is over.

X To make a full brake application:

depress the brake pedal with full force. G Warning If the ABS malfunctions, other driving systems such as the BAS or the ESP® are also switched off. Observe indicator and warning lamps that may come on as well as messages in the multifunction display that may appear. If the ABS malfunctions, the wheels may lock during hard braking, reducing the steering capability and extending the braking distance.

The pulsating brake pedal can be an indication of hazardous road conditions and functions as a reminder to take extra care while driving.

BAS (Brake Assist System) G Warning Observe "Important safety notes" (Y page 61). BAS operates in emergency braking situations. If you depress the brake pedal quickly, BAS automatically boosts the braking force, thus shortening the stopping distance. X Keep the brake pedal firmly depressed until

the emergency braking situation is over. ABS prevents the wheels from locking. The brakes will function as usual once you release the brake pedal. BAS is deactivated. G Warning If the BAS malfunctions, the brake system still functions, but without the additional brake boost available that the BAS would normally provide in an emergency braking maneuver. Therefore, the braking distance may increase.

BAS PLUS (Brake Assist PLUS) G Warning Observe "Important safety notes" (Y page 61). At speeds above approximately 20 mph (30 km/h), BAS PLUS assists you when braking in hazardous situations and uses the radar sensor system to evaluate the traffic conditions. G Warning! BAS PLUS is a convenience system designed to assist the driver during vehicle operation. The responsibility for the vehicle speed and the distance to the vehicle ahead, including most importantly brake operation to assure safe stopping distance, always remains with the driver. Always pay attention to traffic conditions even while BAS PLUS is switched on. Otherwise, you may not be able to recognize dangerous situations until it is too late and could cause an accident. Personal or fatal injury to you or others may be the result.

i This equipment has been approved by the

FCC as a "Vehicular Radar System". The radar sensor system is intended for use in an automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. Do not tamper with the device in any way. Any unauthorized modification to this device could void the user's authority to operate the equipment.

BAS PLUS can detect obstacles that are in the path of your vehicle for an extended period of time. Should you approach a detected obstacle quickly, BAS PLUS calculates the braking force necessary to avoid a rear-end collision. Should you additionally apply the brakes, BAS PLUS will automatically increase the braking force to a level suitable for the traffic conditions.

If BAS PLUS demands particularly high braking force, PRE-SAFE® is activated simultaneously. X Keep the brake pedal depressed until the

emergency braking situation is over. ABS prevents the wheels from locking. The brakes will work normally again when: Ryou release the brake pedal Rno obstacle is detected in front of your

vehicle

Rthere is no longer any danger of a rear-end

collision

BAS PLUS is then deactivated. At speeds up to approximately 40 mph (70 km/h), BAS PLUS can also detect stationary obstacles, for example, stopped or parked vehicles. For BAS PLUS to assist you when driving, the radar sensor system must be switched on and operational. You can check this by activating DISTRONIC PLUS (Y page 293) or via the "radar sensor" function in the on-board computer(Y page 342). G Warning! BAS PLUS will only respond with brake assistance if it has clearly detected an object. Detection can be impeded by Rdirty or covered sensors Rsnowfall or heavy rain Rdisturbance from other radar sources Rstrong radar reflection such as in parking

garages

BAS PLUS uses radar signals that are not reflected well by narrow objects and absorptive materials. For this reason BAS PLUS will not react to persons, animals, and approaching traffic or cross-traffic. BAS PLUS may not detect narrow vehicles driving in front of you, such as motorcycles and vehicles driving offset from your vehicle center.

Following a collision or accident-related damage to the front end of the vehicle, have

Driving safety systems

63

the configuration and operation of the radar sensors checked at an authorized Mercedes- Benz Center. If BAS PLUS is not available due to a malfunction in the radar sensor system, the brake system remains available with full brake boosting effect and BAS.

Adaptive brake lights i Adaptive brake lamps are only available in

the USA and only on the S 600.

If you brake sharply from a speed of more than 30 mph (50 km/h) or if braking is assisted by BAS or BAS PLUS, the brake lamps flash rapidly. In this way, traffic traveling behind you is warned in an even more noticeable manner. If you brake from a speed of more than 40 mph (70 km/h) to a standstill, the hazard warning lamps are switched on automatically when the vehicle is stationary. If the brakes are applied again, the brake lamps light up continuously. The hazard warning lamps switch off automatically if you drive faster than 6 mph (10 km/h) again. You can also switch off the hazard warning lamps using the hazard warning lamp button (Y page 248).

ESP® (Electronic Stability Program) Important safety notes G Warning Observe "Important safety notes" (Y page 61).

If ESP® detects that the vehicle is deviating from the direction desired by the driver, one or more wheels are braked to stabilize the vehicle. If necessary, the engine output is also modified to keep the vehicle on the desired course within physical limits. ESP® assists the driver when pulling away on wet or slippery roads. ESP® can also stabilize the vehicle during braking.

64 Driving safety systems

If ESP® intervenes, the ÷ warning lamp flashes in the instrument cluster. G Warning Under no circumstances should you deactivate ESP® when the ÷ ESP® warning lamp in the instrument cluster flashes. Proceed as follows: Rwhen driving off, apply as little throttle as

possible.

Rwhile driving, ease up on the accelerator

pedal.

Radapt your speed to suit the prevailing road

and weather conditions.

failure to observe these guidelines could cause the vehicle to skid. ESP® cannot prevent accidents resulting from excessive speed.

! Vehicles without 4MATIC: switch the

ignition off when: Rthe electric parking brake is being tested

using a brake dynamometer.

Rthe vehicle is being towed with the front/

rear axle raised.

Application of the brakes by ESP® may otherwise destroy the brake system.

! Vehicles with 4MATIC: switch off the

ignition when the electric parking brake is being tested on a brake dynamometer. Application of the brakes by ESP® may otherwise destroy the brake system.

i Only use wheels with the recommended

tire sizes. Only then will ESP® function properly.

ETS/4ETS (Electronic Traction System) G Warning Observe "Important safety notes" (Y page 61).

Traction control is part of ESP®. Traction control brakes the drive wheels individually if they spin. This enables you to

pull away and accelerate on slippery surfaces, for example if the road surface is slippery on one side. On vehicles with 4MATIC, more drive torque is also transferred to the wheel or wheels with traction. Traction control remains active if you deactivate ESP®.

Activating/deactivating ESP® G Warning! The ESP should not be switched off during normal driving other than in the circumstances described below. Disabling the system will reduce vehicle stability in driving maneuvers. Do not switch off the ESP when a spare wheel is mounted. G Warning CL 63 AMG: ESP® should not be deactivated during normal driving. Deactivating the system results in the following: Rno restriction to the engine torque Rloss of system-supported traction control "ESP OFF" is designed for driving on closed tracks when the vehicle's own oversteering and understeering characteristics are desired and requires an extremely qualified and experienced driver who is able to handle these critical driving situations. You could lose control of your vehicle and cause an accident. Beware of these limits if you deactivate ESP®. Do not deactivate ESP® when the emergency or spare wheel is mounted.

ESP® is activated automatically when the engine is running.

It may be best to deactivate ESP® in the following situations: Rwhen using snow chains Rin deep snow Ron sand or gravel G Warning! Switch on the ESP immediately if the aforementioned circumstances do not apply anymore. Otherwise the ESP will not stabilize the vehicle when it is starting to skid or a wheel is spinning.

When you deactivate ESP®: RESP® no longer improves driving stability. Rthe engine's torque is no longer limited and the drive wheels can spin. The spinning of the wheels results in a cutting action, which provides better grip.

Rtraction control is still activated. RESP® still provides support when you

brake.

If ESP® is deactivated and one or more wheels start to spin, the ÷ warning lamp in the instrument cluster flashes. In such situations, ESP® will not stabilize the vehicle. X To deactivate: (Y page 339).

The å warning lamp in the instrument cluster lights up. G Warning When the å ESP® OFF warning lamp is lit, ESP® is deactivated. If the ÷ ESP® warning lamp and the å ESP® OFF warning lamp remain lit, ESP® is not available due to a malfunction. When ESP® is deactivated or not operational, vehicle stability in standard driving maneuvers is reduced. Adapt your speed and driving to the prevailing road conditions and to the non-operating status of the ESP®.

Driving safety systems

65

! Avoid spinning a drive wheel for an

extended period with ESP® switched off. This could cause serious damage to the drive train.

X To activate:(Y page 339).

The å warning lamp in the instrument cluster goes out.

EBD (Electronic Brake force Distribution) G Warning Observe "Important safety notes" (Y page 61). EBD monitors and controls the brake pressure on the rear wheels to improve driving stability while braking. G Warning If the EBD malfunctions, the brake system will still function with full brake boost. However, the rear wheels could lock up during emergency braking situations, for example. You could lose control of the vehicle and cause an accident. Adapt your driving style to the changed driving characteristics.

Adaptive Brake ADAPTIVE BRAKE enhances braking safety and offers increased braking comfort. In addition to the braking function, ADAPTIVE BRAKE also has the HOLD function (Y page 303) and hill start assist (Y page 270). For further information, see Driving tips (Y page 288).

PRE-SAFE® Brake (vehicles with DISTRONIC PLUS) PRE-SAFE® Brake can help you to minimize the risk of a frontal collision with a vehicle

66 Driving safety systems

ahead or to reduce the effects of such a collision. At speeds above approximately 20 mph (30 km/h), this function warns you when you are rapidly approaching the vehicle in front. An intermittent warning tone sounds and the · distance warning lamp lights up in the instrument cluster. Due to the nature of the system, particularly complicated driving conditions may cause the system to display an unnecessary warning. At speeds of above approximately 20 mph (30 km/h), if the driver and passengers have fastened their seat belts, PRE-SAFE® Brake can: Rbrake the vehicle automatically at speeds

ranging up to approximately 112 mph (180 km/h)

Rtrigger preventative occupant protection

measures (PRE-SAFE®) (Y page 51) G Warning! An intermittent warning sounds and the distance warning lamp · in the instrument cluster is illuminated if the PRE-SAFE® Brake calculates that the distance to the vehicle ahead and your vehicle's current speed indicate that the PRE-SAFE® Brake will not be capable of slowing the vehicle sufficiently to maintain the preset following distance, which creates a danger of a collision. Immediately brake your vehicle to increase the distance between your vehicle and the vehicle driving in front of you. The warning sound is intended as a final caution that you have not interceded with your own braking inputs to avoid a potentially dangerous situation. Do not wait for the operation of the warning signal to intercede with your own braking, as that will result in potentially dangerous emergency braking which will not always result in an impact being avoided. Tailgating increases the risk of an accident.

G Warning! The PRE-SAFE® Brake is a convenience system designed to assist the driver during vehicle operation. The responsibility for the vehicle speed and the distance to the vehicle ahead, including most importantly brake operation to assure safe stopping distance, always remains with the driver. Always pay attention to traffic conditions even while the PRE-SAFE® Brake is switched on. Otherwise, you may not be able to recognize dangerous situations until it is too late and could cause an accident resulting in personal or fatal injury to you or others.

i USA only: this device has been approved by the FCC as a "Vehicular Radar System". The radar sensor system is intended for use in an automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. Do not tamper with the device in any way. Any unauthorized modification to this device could void the user's authority to operate the equipment.

i Canada only: this device complies with

RSS-210 from Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference, and 2. This device must withstand any interference received, including interference that may cause undesired operation. Removal, tampering, or altering of the device will void any warranties, and is not permitted. Do not tamper with the device in any way. Any unauthorized modification to this device could void the user's authority to operate the equipment.

With the help of the radar sensor system, PRE-SAFE® Brake can detect obstacles that are in front of your vehicle for an extended

period of time. If you approach an obstacle and PRE-SAFE® Brake detects a risk of a collision, the system will initially alert you both visually and acoustically. If you yourself do not brake or steer, the vehicle will automatically brake slightly. In the event of an increased risk of a collision, PRE-SAFE® is activated (Y page 51). G Warning! The PRE-SAFE® Brake will only respond with brake assistance if it has clearly detected an object. Detection can be impeded by: Rdirty or covered sensors Rsnowfall or heavy rain Rdisturbance from other radar sources Rstrong radar reflection such as in parking

garages

The PRE-SAFE® Brake uses radar signals that are not reflected well by narrow objects and absorptive materials. For this reason the PRE- SAFE® Brake will not react to persons, animals, and approaching traffic or cross- traffic. The PRE-SAFE® Brake may not detect narrow vehicles driving in front of you, such as motorcycles and vehicles driving offset from your vehicle center.

In order to maintain the appropriate distance to the vehicle in front and thus prevent a collision, you must apply the brakes yourself. At speeds up to approximately 40 mph (70 km/h), PRE-SAFE® Brake can also detect stationary obstacles, for example stopped or parked vehicles. G Warning! If you do not receive visual or acoustic warning signals, the PRE-SAFE® Brake may Rnot have recognized the collision risk Rhave been deactivated Rbe malfunctioning Apply the brakes yourself to avoid a collision.

Driving safety systems

67

X To activate/deactivate: activate or

deactivate PRE-SAFE® Brake in the on- board computer (Y page 340). After activation, the Ä symbol is displayed on the left in the instrument cluster.

For PRE-SAFE® Brake to assist you when driving, the radar sensor system must be switched on and operational. PRE-SAFE® Brake does not always detect complex traffic situations properly. You can terminate the braking action of PRE-SAFE® Brake in a non-critical driving situation at any time if: Ran acoustic and visual warning occurs Rthe vehicle brakes gently To end this, you can either depress the accelerator pedal further, activate kickdown or release the brake pedal. The braking action of PRE-SAFE® Brake is ended automatically if: Ryou maneuver to avoid the obstacle Ryou drive slower than approximately 9 mph

(15 km/h)

Rthere is no longer an obstacle detected in

front of your vehicle

Rthere is no longer any danger of a collision i While DISTRONIC PLUS is activated, PRE-

SAFE® Brake remains passive.

Following a collision or collision-related damage to the front end of the vehicle, have the configuration and operation of the radar sensors checked. Choose a qualified specialist workshop for this that has the necessary specialist knowledge and tools for the work required. Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose.

68

Anti-theft systems

Anti-theft systems Immobilizer The immobilizer prevents your vehicle from being started without the correct key. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid key that is left inside the vehicle. X To activate with the SmartKey: remove

the SmartKey from the ignition lock.

X To activate with KEYLESS-GO: switch the

ignition off and open the driver's door. X To deactivate: switch on the ignition. i The immobilizer is always deactivated

when you start the engine. In the event that the engine cannot be started when the starter battery is fully charged, the immobilizer may be faulty. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in USA) or 1-800-387-0100 (in Canada).

ATA (Anti-Theft Alarm system) A visual and audible alarm is triggered if the alarm system is armed and you open: Ra door Rthe vehicle with the mechanical key Rthe trunk lid Rthe hood The alarm is not switched off, even if you close the open door that has triggered it, for example.

i If the alarm stays on for more than 30

seconds, the emergency call system mbrace (USA only) or TELEAID (Canada only) initiates a call to the Customer Assistance Center automatically. The emergency call system initiates the call provided that: Ryou have subscribed to the mbrace/

TELEAID service.

Rthe mbrace/TELEAID service has been

activated properly.

Rthe required mobile phone, power supply

and GPS are available.

X To arm: lock the vehicle with the SmartKey

or KEYLESS-GO. Indicator lamp : flashes. The alarm system is armed after approximately 30
seconds.

X To deactivate: unlock the vehicle using the

SmartKey or KEYLESS-GO.

X To stop the alarm using the SmartKey: insert the SmartKey into the ignition lock. The alarm is switched off.

or X Press the % or & button on the

SmartKey. The alarm is switched off.

X To stop the alarm using KEYLESS-GO: grasp the outside door handle. The key must be outside the vehicle. The alarm is switched off.

or X Press the Start/Stop button on the

dashboard. The key must be inside the vehicle. The alarm is switched off.

Anti-theft systems

69

70

71

Vehicle equipment .............................. 72
SmartKey ............................................. 72
Doors .................................................... 78
Trunk .................................................... 81
Side windows ...................................... 85
Sliding sunroof .................................... 88

72

SmartKey

Vehicle equipment

i This manual describes all the standard and optional equipment of your vehicle which was available at the time of purchase. Country-specific differences are possible. Bear in mind that your vehicle may not feature all functions described here. This also refers to safety-related systems and functions.

SmartKey Important safety notes G Warning! When leaving the vehicle, always remove the SmartKey from the starter switch. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could Rinjure themselves on parts of the vehicle Rbe seriously or fatally injured through

excessive exposure to extreme heat or cold Rinjure themselves or cause an accident with

vehicle equipment that can be operated even if the SmartKey is removed from the starter switch or removed from the vehicle, such as seat adjustment, steering wheel adjustment, or the memory function

If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic. Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned by these parts.

G Warning Do not carry heavy or hard objects in the passenger compartment unless they are firmly secured in place. Unsecured or improperly positioned cargo increases a child's risk of injury in the event of: Rstrong braking maneuvers Rsudden changes of direction Ran accident

General information If you cannot open or lock the vehicle with the SmartKey, either the battery in the SmartKey is empty, the SmartKey is faulty, or the starter battery is discharged. X Check the battery in the SmartKey and

replace it if necessary (Y page 76).

X Unlock the driver's door with the

mechanical key (Y page 80). X Lock the vehicle (Y page 80). X Have the starter battery and battery contacts checked by an authorized Mercedes-Benz Center.

If the SmartKey is faulty, contact Roadside Assistance or an authorized Mercedes-Benz Center.

SmartKey functions General notes i USA only:

This device complies with Part 15 of the FCC regulations. Operation is subject to the following conditions: 1. This device must not cause any harmful interference, and 2. This device must be able to accommodate interference that is received, including interference which could cause unwanted functions.

SmartKey

73

Unapproved modifications to this device may lead to withdrawal of permission to operate it.

i Canada only:

This device complies with Industry Canada's RSS–210 regulations. Operation is subject to the following conditions: 1. This device must not cause any harmful interference, and 2. This device must be able to accommodate interference that is received, including interference which could cause unwanted functions. Unapproved modifications to this device may lead to withdrawal of permission to operate it.

Locking and unlocking centrally The SmartKey centrally locks/unlocks: Rthe doors Rthe trunk lid Rthe fuel filler flap

: & To lock the vehicle ; F To unlock the trunk lid = % To unlock the vehicle When unlocking, the turn signals flash once. When locking, they flash three times. When it is dark, the surround lighting also comes on if it is activated in COMAND. You can also set an audible signal to confirm that the vehicle has been locked or unlocked. The audible signal can be activated and

deactivated using the on-board computer (Y page 342). X To unlock centrally: press the %

button.

If you do not open a door or the trunk lid within approximately 40 seconds of unlocking the vehicle: Rthe vehicle is locked again. Rthe theft deterrent locking system is armed

again.

X To lock centrally: press the & button.

KEYLESS-GO General notes i USA only:

This device complies with Part 15 of the FCC regulations. Operation is subject to the following conditions: 1. This device must not cause any harmful interference, and 2. This device must be able to accommodate interference that is received, including interference which could cause unwanted functions. Unapproved modifications to this device may lead to withdrawal of permission to operate it.

i Canada only:

This device complies with Industry Canada's RSS–210 regulations. Operation is subject to the following conditions: 1. This device must not cause any harmful interference, and 2. This device must be able to accommodate interference that is received, including interference which could cause unwanted functions. Unapproved modifications to this device may lead to withdrawal of permission to operate it.

passenger seat, for example, or in your shirt pocket.

RIf you have switched on the engine with the

Start/Stop button, you can switch it off again by: - pressing the Start/Stop button

inserting the KEYLESS-GO key into the ignition lock while the vehicle is at a standstill and the automatic transmission is in park position P.

RYou may inadvertently unlock the vehicle if the KEYLESS-GO key is less than 3 ft (1 m) from the vehicle and: - an exterior door handle is hit by a jet of

water, or

- you clean an exterior door handle

RPlease note that any vehicle occupant can start the engine when there is a KEYLESS- GO key in the vehicle. Scenario 1: There is a KEYLESS-GO key in the vehicle and a second one outside the vehicle. If you leave the KEYLESS-GO key in the vehicle when you leave and lock the vehicle, no message appears in the multifunction display. Scenario 2: There is a KEYLESS-GO key in the vehicle, but none outside the vehicle. If you get out of the vehicle and attempt to lock it, the Key Detected In Vehicle message appears in the multifunction display. The vehicle is not then locked.

When starting the engine and whilst driving, KEYLESS-GO also checks whether a valid SmartKey is in the vehicle by periodically establishing radio contact.

74

SmartKey

Important information about using KEYLESS-GO RYou can use the KEYLESS-GO key as a

conventional SmartKey.

RYou can combine KEYLESS-GO functions

with those of a conventional SmartKey, e.g. you can open the vehicle with KEYLESS-GO and close it with the & button.

RAlways carry your KEYLESS-GO key on your

person.

RNever store the KEYLESS-GO key together

with: - electronic devices, such as a mobile

phone or other SmartKey

- metal objects, such as coins or metal foil Doing so may impair the function of KEYLESS-GO.

RTo open or close the vehicle, the KEYLESS- GO key should not be more than 3 ft (1 m) from the door or trunk.

RIf the vehicle is parked for more than 72 hours, the KEYLESS-GO function is deactivated. Pull an outer door handle and switch on the ignition to reactivate the KEYLESS-GO function.

RIf the KEYLESS-GO key is removed from the

vehicle, the system may not be able to recognize the SmartKey anymore. The vehicle can then no longer be locked or started with KEYLESS-GO.

RIf the KEYLESS-GO key has been removed from the vehicle, e.g. when another vehicle occupant with a KEYLESS-GO key leaves the vehicle: - when the Start/Stop button is pressed, or when trying to lock the vehicle using the locking button on the outside door handle, the Key Not Detected message appears in the multifunction display. - when the engine is running, the red Key Not Detected message appears in the multifunction display as you pull away. Look for the KEYLESS-GO key and place it somewhere else in the vehicle. Place the KEYLESS-GO key on the front-

X To unlock the vehicle: pull the door

X To lock the vehicle: touch sensor

handle.

surface :.

If you pull on the handle of the trunk lid, only the trunk of the vehicle is unlocked.

Changing the settings of the locking system You can change the setting of the locking system in such a way that only the driver's door and the fuel filler flap are unlocked. This is useful if you frequently travel on your own. X To change the setting: press and hold

down the % and & buttons simultaneously for approximately six seconds until the battery check lamp (Y page 76) flashes twice.

The SmartKey now functions as follows: X To unlock the driver's door: press the

% button once.

X To unlock centrally: press the %

button twice.

X To lock centrally: press the & button. The KEYLESS-GO function is changed as follows: X To unlock the driver's door: pull the door

handle on the driver's door.

X To unlock centrally: pull the front-

passenger door handle.

X To lock centrally: touch sensor

surface : on one of the door handles.

Restoring the factory settings X Press the % and & buttons

simultaneously for approximately six seconds until the battery check lamp flashes twice.

SmartKey

75

Mechanical key General notes If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-theft alarm system will be triggered (Y page 68). There are several ways to turn off the alarm: X Press the % or & button on the

SmartKey.

or X Insert the SmartKey into the ignition lock. or X Press the Start/Stop button in the ignition lock. The SmartKey must be in the vehicle.

or X Lock or unlock the vehicle using KEYLESS-

GO. The SmartKey must be outside the vehicle.

Removing the mechanical key

X Push release catch : in the direction of the arrow and at the same time, remove mechanical key ; from the SmartKey.

SmartKey battery Important safety notes It is advisable to have batteries replaced at a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center.

76

SmartKey

G Warning Batteries contain toxic and caustic substances. For this reason, keep batteries out of the reach of children. If a battery has been swallowed, seek medical help immediately. G Warning The SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Observe government disposal guidelines. California residents, see www.dtsc.ca.gov/ HazardousWaste/Perchlorate/ index.cfm.

Checking the battery

Changing the battery You require a CR 2025 3 V cell battery. X Take the mechanical key out of the

SmartKey (Y page 75).

X Press mechanical key ; into the opening

in the SmartKey in the direction of the arrow until battery tray cover : opens. Do not hold the cover closed while doing so.

X Press the & or % button.

The SmartKey battery is working properly if battery charge indicator lamp : lights up briefly.

If battery charge indicator lamp : does not light up briefly during the test, the SmartKey battery is discharged. X Replace the SmartKey battery

(Y page 76).

i You can obtain a SmartKey battery at any

authorized Mercedes-Benz Center.

i If the SmartKey battery is checked within

signal range of the vehicle, pressing the & or % button results in the vehicle being locked or unlocked respectively.

X Remove the cover of the battery tray. X Repeatedly tap the SmartKey against your

palm until battery = falls out.

X Insert the new battery with the positive

pole facing upwards. Use a lint-free cloth to do so.

X Insert the front tabs of the battery tray's

cover first and then press to close it.

X Check the function of all SmartKey buttons

on the vehicle.

SmartKey

77

Problems with the SmartKey Problem You cannot lock or unlock the vehicle using the SmartKey.

Possible causes/consequences and M Solutions The SmartKey battery is discharged or nearly discharged. X Point the tip of the SmartKey at the driver's door handle from a

distance of approximately 1.5 ft (50 cm) and try to unlock or lock the vehicle again.

If this does not work: X Check the SmartKey battery and replace it if necessary

(Y page 76).

the mechanical key.

X Lock (Y page 80) or unlock (Y page 80) the vehicle using

You can no longer lock or unlock the vehicle using KEYLESS-GO.

You have lost the SmartKey.

The SmartKey is faulty. X Lock (Y page 80) or unlock (Y page 80) the vehicle using

the mechanical key.

X Have the SmartKey checked at a qualified specialist workshop. KEYLESS-GO is in standby mode because the vehicle has not been unlocked for an extended period. X Pull the door handle twice and then insert the SmartKey into the

ignition lock.

There is a malfunction with KEYLESS-GO. X Lock/unlock the vehicle using the remote control function of the SmartKey. Point the tip of the SmartKey at the driver's door handle from close range and press the %/& button.

X Have the SmartKey checked at a qualified specialist workshop. There is interference from a powerful source of radio waves. X Lock/unlock the vehicle using the remote control function of the SmartKey. Point the tip of the SmartKey at the driver's door handle from close range and press the %/& button.

X Have the SmartKey canceled at an authorized Mercedes-Benz

Center.

X Report the loss immediately to the vehicle insurers. X If necessary, have the locks changed as well.

You have lost the mechanical key.

X Report the loss immediately to the vehicle insurers. X If necessary, have the locks changed as well.

78 Doors

Problem The engine cannot be started using the SmartKey.

The engine cannot be started using KEYLESS- GO. The SmartKey is in the vehicle.

Possible causes/consequences and M Solutions The on-board voltage is too low. X Remove the SmartKey and reinsert it into the ignition lock. X Start the engine within 30 seconds of inserting the SmartKey

into the ignition lock. X Repeat if necessary. If the engine does not start after several attempts: X Check the starter battery and charge it if necessary

(Y page 426).

or X Jump-start the vehicle (Y page 429). or X Consult a qualified specialist workshop. A door is open. Therefore, the SmartKey cannot be detected as easily. X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves. X Start your vehicle with the SmartKey in the ignition lock.

Doors Important safety notes G Warning! When leaving the vehicle, always remove the SmartKey from the starter switch. Always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, even if they are secured in a child restraint system, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. The children could Rinjure themselves on parts of the vehicle Rbe seriously or fatally injured through

excessive exposure to extreme heat or cold Rinjure themselves or cause an accident with

vehicle equipment that can be operated even if the SmartKey is removed from the starter switch or removed from the vehicle,

such as seat adjustment, steering wheel adjustment, or the memory function

If children open a door, they could injure other persons or get out of the vehicle and injure themselves or be injured by following traffic. Do not expose the child restraint system to direct sunlight. The child restraint system's metal parts, for example, could become very hot, and the child could be burned by these parts. G Warning Do not carry heavy or hard objects in the passenger compartment unless they are firmly secured in place. Unsecured or improperly positioned cargo increases a child's risk of injury in the event of: Rstrong braking maneuvers Rsudden changes of direction Ran accident

Unlocking and opening the doors from the inside You can open a door from inside the vehicle even if it has been locked. Open the door only when the traffic conditions permit. If the vehicle has been opened with the SmartKey or KEYLESS-GO key, opening from inside triggers the anti-theft alarm system. Switch off the alarm (Y page 68).

X Pull door handle ;.

If the door is locked, locking knob : pops up. The door is unlocked and can be opened.

i When a door is opened, the side window on that side opens slightly. When the door is closed, the side window closes again. ! The side windows will not open/close if

the battery is discharged or if the side windows have iced up. It will then not be possible to close the door. Do not attempt to force the door closed. You could otherwise damage the door or the side window.

Centrally locking and unlocking the vehicle from the inside You can centrally lock or unlock the vehicle from the inside. This feature may be useful if, for example, you wish to unlock the front- passenger door from the inside or lock the vehicle before you pull away.

Doors

79

The central locking/unlocking button does not lock or unlock the fuel filler flap.

X To lock: press button ;.

The vehicle locks itself when the front- passenger door is closed.

X To unlock: press button :. You can open a door from inside the vehicle even if it has been locked. Open the door only when the traffic conditions permit. If the vehicle has been locked with the locking button for the central locking function: Rand the SmartKey has been reset to the factory settings, the complete vehicle is unlocked when a door is opened from the inside

Rand the SmartKey has been set to an individual setting, only the door that is opened from the inside is unlocked

If the vehicle has been locked centrally with the SmartKey or with KEYLESS-GO, it is not unlocked if you use the unlocking button for the central locking system.

Automatic locking The vehicle locks automatically when the ignition is switched on and the wheels of the vehicle are moving at a speed above 9 mph (15 km/h). Therefore, there is a risk of being locked out when the vehicle is being pushed, towed or tested on a dynamometer. You can switch off the automatic locking function via COMAND (Y page 233).

80 Doors

Power closing feature The power closing feature pulls the doors and trunk lid into their locks automatically even if they are only partly closed. G Warning To prevent possible personal injury, always keep hands and fingers away from the door or trunk opening when closing a door or the trunk lid. Be especially careful when small children are around. If danger threatens, pull the inside or outside door handle, or pull the trunk lid handle. To prevent personal injury, never activate the closing assist mechanism by tampering with the door or trunk lid latch. G Warning Only drive with the doors closed. Otherwise, one or more of the doors could open while the vehicle is in motion, putting you and/or others at risk. G Warning Make sure the trunk lid is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter the vehicle interior resulting in unconsciousness and death.

X Power closing feature (doors): push the

door past the first detent position of the lock. The power closing feature will pull the door