2011 Mercedes-benz C Class Owners Manual

X Adjust the seat and move the backrest to

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, adjust the seat belt to the

appropriate height (Y page 53).

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 53).

Adjust the height so that the upper part of the seat belt is routed across the center of your shoulder. X To raise: slide the belt sash guide upwards.

The belt sash guide engages in various positions.

X To lower: press and hold belt sash guide

release :.

X Slide the belt sash guide downwards. X Release belt sash guide release : and make sure that the belt sash guide has engaged.

Releasing seat belts X Press release button ? (Y page 52) 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.

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54 Occupant safety

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 204).

Emergency Tensioning Devices and seat belt force limiters The front seat belts and the outer seat belts in the rear are equipped with ETDs 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 ETDs tighten the seat belts in an accident, pulling them close against the body. ETDs do not correct incorrect seat positions or incorrectly fastened seat belts. ETDs do not pull vehicle occupants back towards the backrest. Seat belt force limiters, when activated, are employed to help reduce the force exerted by the seat belts on occupants during a crash. 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 ETDs can only be activated if: Rthe ignition is switched on. Rthe restraint systems are operational; see

"SRS warning lamp" (Y page 34).

Rthe belt tongue is engaged in the buckle on each of the lap-shoulder belts in the front. Rthe front-passenger seat is occupied and the belt tongue is engaged in the buckle on the front-passenger side.

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The ETDs on the outside seats in the rear compartment are triggered independently of the lock status of the seat belts. The ETDs 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 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

If the Emergency Tensioning Devices (ETDs) are triggered, 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.

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

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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 55). 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 Accident statistics show that children secured in the rear seats are safer than children secured in the front-passenger seat. For this reason, we strongly advise that you always secure children in the rear seats. Regardless of the seat position, children under 12 years must be secured correctly in a suitable infant or child restraint system or booster seat suitable for the size and weight of the child. The infant or child restraint system must be correctly secured using the vehicle's seat belt, the seat belt and Top Tether belt or the lower anchorages and the Top Tether belt in complete accordance with the child seat manufacturer's instructions. Occupants, in particular children, must sit as upright as possible, fasten the seat belt correctly and use a suitable infant restraint system, child restraint system or booster seat suitable for the size and weight of the child. Children can be seriously or even fatally injured by an air bag deploying. Observe the following important information if it is absolutely necessary to carry a child on the front-passenger seat: RUSA only: Your vehicle is equipped with air

bag technology that is designed to deactivate the front-passenger front air bag, when the system on the front- passenger seat detects the weight of a typical 12-month old child in a standard child restraint.

RUSA only: For children that weigh more

than a typical 12-month old child, the front- passenger front air bag can be activated or deactivated. Always make sure that the 45 indicator lamp is illuminated indicating that the front-passenger front air bag is deactivated.

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RCanada only: Children 12 years old and

under may ride on the front seat if a BabySmart™ compatible child restraint system is installed on the front-passenger seat. Use only Mercedes-Benz approved BabySmart™ compatible child restraint systems. A BabySmart™ compatible child restraint system will deactivate the front- passenger front air bag when installed correctly. The front-passenger front air bag will not be deactivated if the child restraint systems that are installed are not BabySmart™ compatible or if BabySmart™ compatible child restraint systems are not installed correctly. If the front-passenger front air bag is deployed in a collision, the child could be struck by the air bag. This could lead to serious or fatal injury.

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 way to completely rule out this risk is by making sure you never place a child in a rearward-facing child restraint system on the front- passenger seat. For this reason, we strongly advise that you always carry children in a rearward-facing child restraint system on a rear seat.

RIf you must install a rear-facing child restraint on the front-passenger seat because circumstances require you to do so, make sure the 45 indicator lamp is illuminated, indicating that the front- passenger front air bag is deactivated. If the 45 indicator lamp does not light up or goes out when the child restraint system is installed, check the anchorages of the restraint system. Check the 45
indicator lamp regularly while driving to ensure that the 45 indicator lamp is illuminated. If the 45 indicator lamp goes out or remains out, you may only carry

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57

a child on the front-passenger seat once 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.

Rwhen securing a child in a child restraint system on the front-passenger seat, you must: - move the front-passenger seat as far

back as possible

- use a child restraint system that is

suitable for the age, size and weight of the child

- observe the manufacturer's installation instructions in order to install and secure the child restraint system correctly.

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 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.

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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. ! When installing the child restraint system, make sure that the seat belt for the center seat does not get trapped. Otherwise, the seat belt could be damaged.

Special seat belt retractor G Warning Observe "Important safety notes" (Y page 55). 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 (ISOFIX) child seat anchors G Warning Observe "Important safety notes" (Y page 55).

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occupied by passengers. Lock the rear seat backrests in their upright position before installing the Top Tether straps or when the cargo compartment is not in use. Make sure that rear seat backrests are secured properly by pushing and pulling on the seat backrests. If the seat backrest is not locked properly, the seat backrest could fold forward. The child restraint system is no longer supported properly or held in position and can no longer fulfill its function. This could cause serious or even fatal injuries.

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

X Move head restraint : upwards. X Fold up cover ; of Top Tether anchorage

=.

Vehicles without a through-loading feature in the rear bench seat Installation instruction : indicates the installation point of securing ring =. X Remove protective caps ; from securing rings = by pulling in the direction of the arrow.

Vehicles with a through-loading feature in the rear bench seat X Install the LATCH-type (ISOFIX) child

restraint system. 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 55). G Warning Always lock the rear seat backrests in their upright position when the rear seats are

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X Route Top Tether belt A under the head restraint : between both head restraint bars.

X Hook Top Tether hook ? into Top Tether

anchorage =.

X Make sure that Top Tether belt A is not

twisted.

X Fold down cover ; of Top Tether

anchorage =.

X If necessary, push head restraint : back down slightly (Y page 96). Make sure that the routing of Top Tether belt A is not impaired.

X Install the LATCH-type (ISOFIX) child

restraint system with Top Tether. Always comply with the manufacturer's installation instructions. Make sure that Top Tether belt A is taut.

Child-proof locks Child-proof locks for the rear doors G Warning Observe "Important safety notes" (Y page 55). G Warning Children could open a rear door from inside the vehicle. This could result in serious injuries or an accident. Therefore, when children ride in the rear always secure the rear doors with the child-proof locks.

You can secure each door individually with the child-proof locks on the rear doors. A door secured with a child-proof lock cannot be opened from inside the vehicle. When the vehicle is unlocked, the door can be opened from the outside.

X To activate: press the child-proof lock

lever up in the direction of arrow :.

X Make sure that the child-proof locks are

working properly.

X To deactivate: press the child-proof lock lever down in the direction of arrow ;.

Override feature for the rear side windows G Warning Observe "Important safety notes" (Y page 55). 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,

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operation is possible using the switches in the rear compartment.

Panic alarm

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:

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61

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 Overview of driving safety systems In this section, you will find information about the following driving safety systems: RABS (Anti-lock Braking System) RBAS (Brake Assist System) RESP® (Electronic Stability Program) REBD (Electronic Brake-power Distribution) RADAPTIVE BRAKE

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

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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.

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) 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.

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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. If ESP® intervenes, the ä warning lamp flashes in the instrument cluster. G Warning! Never switch off the ESP when you see the ESP warning lamp ä flashing in the instrument cluster. In this case proceed as follows: RWhen driving off, apply as little throttle as

possible.

RWhile driving, ease up on the accelerator

pedal.

RAdapt your speed and driving style to the

prevailing road conditions.

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

! Vehicles without 4MATIC: switch the

ignition off when: Rthe parking brake is being tested using a

dynamometer

Rthe vehicle is being towed with the front

axle raised

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

! Vehicles with 4MATIC: switch off the

ignition when the parking brake is being tested on a brake dynamometer. Application of the brakes by ESP® may otherwise destroy the brake system. ! Vehicles with 4MATIC: function or

performance tests may only be carried out on a 2-axle dynamometer. If you wish to operate the vehicle on such a dynamometer, please consult an authorized Mercedes-Benz Center in advance. You could otherwise damage the drive train or 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®.

Deactivating/activating ESP® (except AMG vehicles) 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.

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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! Activate ESP® as soon as the situations described above no longer apply. ESP® will otherwise not be able to stabilize the vehicle if the vehicle starts to skid or a wheel starts to spin.

If 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 ä warning lamp in the instrument cluster flashes. In such situations, ESP® will not stabilize the vehicle. X To deactivate:(Y page 178).

The å warning lamp in the instrument cluster lights up. G Warning When the å ESP OFF warning lamp lights up, ESP is switched off. When the ä ESP warning lamp and the å ESP OFF warning lamp are on continuously, ESP is not operational due to a malfunction. When ESP is switched off or not operational, the vehicle's stability during standard driving maneuvers is reduced.

Adapt your driving style to suit the prevailing road conditions/weather conditions and to the non-operating status of ESP.

! 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 178).

The å warning lamp in the instrument cluster goes out.

Deactivating/activating ESP® (AMG vehicles) Activating/deactivating SPORT handling mode G Warning The SPORT handling mode should not be switched on during normal driving. Switching on the SPORT handling mode will result in the following: Rno restriction to the engine torque Rsystem supported traction control is

limited

The SPORT handling mode is designed for driving on closed tracks when the vehicle's own natural oversteer and understeer characteristics are desired and requires a highly skilled and experienced driver able to handle these critical driving situations. You could lose control of your vehicle and cause an accident. Please be aware of these limits when you switch on the SPORT handling mode. Do not switch on the SPORT handling when a spare wheel is mounted.

SPORT handling mode is active automatically as long as the engine is running.

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It may be best to activate SPORT handling mode in the following situations: Rwhen using snow chains Rin deep snow Ron sand or gravel G Warning Switch off the SPORT handling mode and switch on the ESP® immediately if the aforementioned circumstances do not apply anymore. Otherwise the SPORT handling mode will only stabilize the vehicle to a limited extent when it is starting to skid or a wheel is spinning.

When SPORT handling mode is activated: RESP® only improves driving stability to a

limited degree.

Rthe engine's torque is restricted to a limited degree 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

firmly.

If SPORT handling mode is activated and one or more wheels start to spin, the ä warning lamp in the instrument cluster flashes. ESP® only stabilizes the vehicle to a limited degree.

X To activate: briefly press button :. The M warning lamp in the instrument cluster lights up. The SPORT handling

Driving safety systems mode message appears in the multifunction display.

65

X To deactivate: briefly press button :.

The M warning lamp in the instrument cluster goes out.

Activating/deactivating ESP® G Warning! The ESP® should not be switched off during normal driving. Disabling of the system will result in the following: Rno restriction to engine torque Rloss of system-supported traction control "ESP® OFF" is designed for driving on closed tracks when the vehicle’s natural oversteer and understeer characteristics are desired and requires a highly skilled and experienced driver able to handle these critical driving situations. You could lose control of your vehicle and cause an accident. Please be aware of these limits when you switch off the ESP®. Do not switch off the ESP® when a 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! Activate ESP® as soon as the situations described above no longer apply. ESP® will otherwise not be able to stabilize the vehicle if the vehicle starts to skid or a wheel starts to spin.

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If you deactivate ESP®: RESP® no longer improves driving stability. Rthe engine's torque is no longer limited and

the drive wheels are able to 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

firmly.

If ESP® is deactivated and one or more wheels start to spin, the ä warning lamp in the instrument cluster does not flash. In such situations, ESP® will not stabilize the vehicle.

X To deactivate: press button : until the

å warning lamp lights up in the instrument cluster. The message ESC-OFF appears in the multifunction display. G Warning When the å ESP OFF warning lamp lights up, ESP is switched off. When the ä ESP warning lamp and the å ESP OFF warning lamp are on continuously, ESP is not operational due to a malfunction. When ESP is switched off or not operational, the vehicle's stability during standard driving maneuvers is reduced. Adapt your driving style to suit the prevailing road conditions/weather conditions and to the non-operating status of ESP.

! 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: briefly press button :. The å warning lamp in the instrument cluster goes out. The message ESC-ON appears in the multifunction display.

EBD 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 features the hill start assist function (Y page 135). For further information, see Driving tips (Y page 152).

Anti-theft systems Immobilizer The immobilizer prevents your vehicle from being started without the correct key.

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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.

X To arm: lock the vehicle with the SmartKey

or KEYLESS-GO. Indicator lamp : flashes. The alarm system is armed after approximately 15
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.

Rthe mbrace/TELEAID service has been

activated properly.

Rthe required mobile phone, power supply

and GPS are available.

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Vehicle equipment .............................. 70
SmartKey ............................................. 70
Doors .................................................... 77
Trunk .................................................... 80
Side windows ...................................... 83
Sliding sunroof .................................... 86

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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

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

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

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

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.

: & 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 the on-board computer.

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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 181). i Only for USA:

This equipment complies with Part 15 of the FCC regulations. Operation is subject to the following conditions: Rthis equipment must not emit harmful,

electromagnetic radiation.

Rthis equipment may be affected by electromagnetic radiation, including radiation which can trigger unwanted functions.

Any unauthorized change to this equipment can lead to the user's operating license being withdrawn. i Only for Canada:

This equipment complies with the RSS-210
regulations of Industry Canada. Operation is subject to the following conditions: Rthis equipment must not emit harmful,

electromagnetic radiation.

Rthis equipment receives electromagnetic radiation, including radiation which can trigger unwanted functions.

Any unauthorized change to this equipment can lead to the user's operating license being withdrawn.

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

activated again.

X To lock centrally: press the & button.

KEYLESS-GO General notes i Only for USA:

This equipment complies with Part 15 of the FCC regulations. Operation is subject to the following conditions: Rthis equipment must not emit harmful,

electromagnetic radiation.

Rthis equipment may be affected by electromagnetic radiation, including radiation which can trigger unwanted functions.

Any unauthorized change to this equipment can lead to the user's operating license being withdrawn. i Only for Canada:

This equipment has been released in accordance with RSS - 210 of Industry Canada. Operation is subject to the following conditions: Rthis equipment must not emit harmful,

electromagnetic radiation.

Rthis equipment receives electromagnetic radiation, including radiation which can trigger unwanted functions.

Any unauthorized change to this equipment can lead to the user's operating license being withdrawn.

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

conventional key.

RYou can combine KEYLESS-GO functions

with those of a conventional key (e.g. open with KEYLESS-GO and close with the & button).

RAlways carry your KEYLESS-GO key on your

person.

RNever keep the KEYLESS-GO key with: - electronic equipment, such as your

mobile phone or another key

- metal objects, such as coins or metal foil

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This may impair the functioning of KEYLESS- GO. RTo open or close the vehicle, the KEYLESS- GO key should be no more than 3 ft (1 m) from the door or trunk.

RWhen the vehicle is parked for more than

72 hours, the KEYLESS-GO function is deactivated. Pull one of the outer door handles and turn on the ignition to reactivate the KEYLESS-GO function. RIf the KEYLESS-GO key is not near the

vehicle, it is possible that the system may not recognize it. In this case, the vehicle cannot be locked or started with KEYLESS- GO.

RIf the KEYLESS-GO key has been removed from the vehicle (e.g. if a passenger leaves the vehicle with the KEYLESS-GO key): - while someone is holding the Start/Stop button or attempting to lock the vehicle with the outer door handle, the message Key not detected appears in the multifunction display - while the engine is running, the red message Key not detected appears in the multifunction display as you pull away. Find the KEYLESS-GO key or change its current position immediately (e.g. place it on the front-passenger seat or carry it in your shirt pocket.)

RIf you have started the engine using the

Start/Stop button, you can turn if off again by: - pressing the Start/Stop button again inserting the KEYLESS-GO key in the ignition lock when the vehicle is stationary and the automatic transmission is in parking position P.

RYou may accidentally unlock the vehicle if the KEYLESS-GO key is within 3 ft (1 m) of the vehicle and: - an outer door handle comes into contact

with water

or

- you are cleaning an outer door handle. RNote that the engine can be started by any vehicle occupant if a KEYLESS-GO key is in the vehicle. Option 1: there is a KEYLESS-GO key in the vehicle and a KEYLESS-GO key outside the vehicle. If you leave the KEYLESS-GO key behind when you get out and lock the vehicle, a message does not appear in the multifunction display. Option 2: there is a KEYLESS-GO key in the vehicle but no KEYLESS-GO key outside the vehicle. When you get out and try to lock the vehicle, the message Key still in vehicle appears in the multifunction display. The vehicle is not locked in this case.

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

X To unlock the vehicle: touch the inner

surface of the door handle.

X To lock the vehicle: touch sensor

surface :.

X Convenience closing feature: touch

sensor surface ; for an extended period (Y page 84).

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

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Mechanical key General notes If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key. 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 67). 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.

If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked automatically. X To unlock the fuel filler flap: insert the

SmartKey in the ignition lock.

Removing the mechanical key

i If the vehicle has been parked for a long time, the sensor surfaces are deactivated automatically. Pull the door handle to unlock the door and turn on the ignition once to activate the sensor surfaces again.

Changing the settings of the locking system You can change the settings 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 the %

and & buttons simultaneously for approximately six seconds until the battery check lamp 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: touch the inner surface of the door handle on the driver's door.

X To unlock centrally: touch the inner

surface of the door handle on the front- passenger door or the rear door. 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.

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

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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. G Warning! Batteries are toxic and contain caustic substances. For this reason, keep batteries out of the reach of children. If a battery has been swallowed, visit a doctor immediately. G Warning SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Check with your local government's disposal guidelines. California residents, see www.dtsc.ca.gov/ HazardousWaste/Perchlorate/ index.cfm.

Checking the battery

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.

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

SmartKey (Y page 73).

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 74).

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.

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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.

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Problems with the SmartKey Problem You cannot lock/ 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 Lock or unlock the vehicle using the mechanical key

(Y page 73).

X Check the key battery and replace it if necessary (Y page 74). The SmartKey is faulty. X Lock the vehicle as described in the "Locking the vehicle

(mechanical key)" section (Y page 79) or unlock it using the mechanical key (Y page 73).

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 and then turn the SmartKey to position 2

in 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 can no longer lock/unlock the vehicle using KEYLESS- GO.

You have lost a SmartKey.

You have lost the mechanical key.

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

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Problem The engine cannot be started using the SmartKey.

Possible causes/consequences and M Solutions The on-board voltage is too low. X Switch off non-essential consumers, e.g. seat heating or interior

lighting, and try to start the engine again.

If this does not work: X Check the starter battery and charge it if necessary

(Y page 259).

or X Jump-start the vehicle (Y page 262). or X Consult a qualified specialist workshop. The steering lock is mechanically blocked. X Remove the SmartKey and re-insert it into the ignition lock. While doing this, turn the steering wheel in both directions.

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.

The engine cannot be started using the SmartKey.

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

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 or trunk unless they are firmly secured in place.

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Centrally locking and unlocking the vehicle from the inside The locking or unlocking buttons of the central locking do not lock or unlock the fuel filler flap. i You cannot unlock the vehicle centrally

from the inside if the vehicle has been locked with the SmartKey or KEYLESS-GO.

i It is only possible to lock the vehicle centrally if the front-passenger door is closed.

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 doors from the inside You can open a door from inside the vehicle even if it has been locked, unless the child- proof locks have been activated (Y page 60). Only open the door if traffic conditions allow you to do so. If the vehicle has previously been locked with the SmartKey or with KEYLESS-GO, opening a door from the inside will trigger the anti- theft alarm system. Switch off the alarm (Y page 67).

X Front door: pull door handle ;.

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

X Rear door: pull up locking knob : on the

respective rear door. The rear door is unlocked and can be opened.

X To unlock: press button :. X To lock: press button ;. You can open a locked front door from inside the vehicle. Only open the door if traffic conditions allow you to do so. If the vehicle has previously been locked with the central locking button: Rand the KEYLESS-GO key is restored to the

factory settings, the entire vehicle is unlocked if a front door is opened from inside the vehicle.

Rand the KEYLESS-GO key is set to individual

settings, only the front door which is opened from inside the vehicle is unlocked.