2010 Mercedes-benz CLS Class Owners Manual

The PRE-SAFE® system takes preventive measures to better protect the occupants from the possibility of personal injuries in the following hazardous situations: Remergency braking situations, e.g. if the Brake Assist System (BAS) (Y page 59) is activated

Rcritical dynamic driving situations, e.g. when the vehicle has been caused to understeer or oversteer because it has exceeded its physical limitations or in case of evasive steering maneuvers at speeds above approximately 85 mph (140 km/h) The PRE-SAFE® system takes the following measures when it is activated: RThe front seat belts are pre-tensioned

automatically.

RIf the front passenger seat is in an

unfavorable position, the seat will be adjusted to a position that seeks to better protect the occupant.

RIf the vehicle is in a critical dynamic driving

situation, the door windows and the tilt/ sliding sunroof also closes, except for a minimal gap that remains open.

If the closing procedure of any of these elements is blocked, it will stop and open slightly. Once the hazardous situation no longer exists and an accident has been avoided, the seat belt pre-tensioning is deactivated. All of the PRE-SAFE® system settings can be re- adjusted following the critical driving event. If the seat belts do not release: X Adjust the seat backrest or seat slightly to

the rear until the seat belt tension is reduced. The locking mechanism releases.

! When moving the seats, make sure there are no items in the footwell or behind the seats. Otherwise, you could damage the seats and/or the items.

NECK-PRO active front head restraints The NECK-PRO active front head restraints are intended to offer the driver and front passenger increased protection from whiplash-type injuries. In the event of a rear- end collision, the NECK-PRO active front head restraints on the front seats are designed to move forward in the direction of travel. They thus provide the head with increased support earlier on in the collision sequence. The NECK-PRO active front head restraints will move forward whether the seats are occupied or not. G Warning! Do not attach any objects (e.g. hangers) to the head restraint posts. Otherwise, the NECK- PRO active front head restraints may not be able to function properly or offer the intended degree of protection they were designed for in the event of a rear-end collision. G Warning! Only use seat or head restraint covers which have been tested and approved by Mercedes- Benz for your vehicle model. Using other seat or head restraint covers may interfere with or prevent the activation of the NECK-PRO active front head restraints and/ or the deployment of the front side impact air bags. Contact an authorized Mercedes-Benz Center for availability. When the NECK-PRO active front head restraints have been triggered in an accident, the NECK-PRO active front head restraints must be reset. Otherwise, the NECK-PRO active front head restraints cannot offer any additional protection in the event of another rear-end collision. For information on resetting the activated NECK-PRO active front head restraints, see “Resetting activated head restraints” (Y page 264).

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You cannot remove the NECK-PRO active front head restraints. G Warning! For your protection, drive only with properly positioned head restraints. Adjust the head restraint so that it is as close to the head as possible and the center of the head restraint supports the back of the head at eye level. This will reduce the potential for injury to the head and neck in the event of an accident or similar situation. For information on head restraint adjustment, see “Head restraint height” (Y page 79), or see “Head restraint fore and aft adjustment” (Y page 79).

Correct driver seat adjustment G Warning! In order to avoid possible loss of vehicle control the following must be done before the vehicle is put into motion: Rseat adjustment Rhead restraint adjustment Rsteering wheel adjustment Rrear view mirror adjustment Rfastening of seat belts

Steering wheel G Observe Safety notes, see page 82. X Position steering wheel : properly

(Y page 82).

Make sure: RYou can reach the steering wheel with your

arms slightly bent at the elbows.

RYou can move your legs freely. RAll displays (including malfunction and

indicator lamps) on the instrument cluster are clearly visible.

Seat belt G Observe Safety notes, see page 45. X Fasten and position your seat belt ;

correctly (Y page 47).

Make sure: RThe seat belt is always fitted snugly. RAdjust the seat belt so that the shoulder section is located as close as possible to the middle of the shoulder.

RPlace the lap portion of the seat belt as low

as possible on your hips.

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Seat and head restraint G Observe Safety notes, see page 77. X Position seat = and head restraint

properly. See (Y page 78) for seat and head restraint adjustment. Observe the following points: RAlways be in a properly seated position. RThe position should be as far rearward from

the front air bag in the steering wheel as possible, while still permitting proper operation of vehicle controls.

RAdjust the seat to a comfortable seating position that still allows you to reach the accelerator/brake pedal safely.

RThe seat must be adjusted so that you can correctly fasten and position your seat belt. RThe seat backrest must be in a position that

is as nearly upright as possible.

RAdjust the seat cushion so that the front edge of the seat cushion lightly supports your legs.

RAdjust the head restraint so that it is as

close to the head as possible and the center of the head restraint supports the back of the head at eye level.

RNever place hands under the seat or near any moving parts while the seat is being adjusted.

Children in the vehicle Safety notes If an infant or child is traveling with you in the vehicle: X Secure the child using an infant or child

restraint appropriate to the age and size of the child.

X Make sure the infant or child is properly secured at all times while the vehicle is in motion.

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

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Infant and child restraint systems G Observe Safety notes, see page 52. We recommend all infants and children be properly restrained at all times while the vehicle is in motion. All lap/shoulder belts except the driver’s seat belt have special seat belt retractors for secure fastening of child restraints. To fasten a child restraint, follow the child restraint manufacturer’s instructions for mounting. To activate the special seat belt retractor: X Pull the shoulder belt out completely and

let it retract. During seat belt retraction, a ratcheting sound can be heard to indicate that the special seat belt retractor is activated. The seat belt is now locked.

X Push down on child restraint to take up any

slack.

To deactivate the special seat belt retractor: X Release the seat belt buckle and let the

seat belt retract completely. The seat belt can then again be used in the usual manner. G Warning! Never release the seat belt buckle while the vehicle is in motion, since the special seat belt retractor will be deactivated.

i Information on child seats with mounting

fittings for tether anchorages (Y page 54). For information on LATCH-type (ISOFIX) child seat anchors (Y page 55).

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 be seated in an appropriate infant or child restraint system. They must be properly secured in accordance with the manufacturer’s

Occupant safety

53

instructions for the child restraint. All infant or child restraint systems must comply with U.S. 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 and in the instruction manual provided with the restraint. When using any infant restraint, toddler restraint, or booster seat, make sure to carefully read and follow all manufacturer’s instructions for installation and use. Please read and observe warning labels affixed to the inside of the vehicle and to infant or child restraints. G Warning! According to accident statistics, children are safer when properly restrained in the rear seating positions than in the front seating position. 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 appropriate infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. The infant or child restraint 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 appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child.

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

RIf you must install a rear-facing child restraint on the front passenger seat because circumstances require you to do so, make sure the 04
indicator lamp is illuminated, indicating that the front passenger front air bag is deactivated. Should the 04
indicator lamp not illuminate or go out while the restraint is installed, please check installation. Periodically check the 04 indicator lamp while driving to make sure the 04
indicator lamp is illuminated. If the 04 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 have to 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, and secure child restraint with the vehicle’s seat belt according to the child seat manufacturer’s instructions. For children larger than the typical 12-month- old child, the front passenger front air bag may or may not be activated. 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 shoulder belt across 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.

Installation of infant and child restraint systems G Observe Safety notes, see page 52. This vehicle is equipped with tether anchorages for a top tether strap at each of the rear seating positions.

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Top tether straps enable an additional connection to be made between child restraint systems secured with LATCH-type (ISOFIX) anchors and rear seats. This can further reduce the risk of injury.

X Remove anchorage ring cover : from the anchorage ring of the seat on which a child seat is to be installed.

X Store anchorage ring cover : in a convenient place (e.g. glove box).

X Guide top tether strap ? between the

head restraint and top of the seat backrest. The head restraint must be positioned such that top tether strap ? can pass freely between the head restraint and top of the seat backrest.

X Make sure top tether strap ? is not

twisted.

X Securely fasten hook =, which is part of top tether strap ?, to anchorage ring ;. X For safety, make sure hook = is attached

to anchorage ring ; beyond the safety catch, as illustrated.

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55

Once hook = is attached, the child restraint itself can be secured. X Install the child restraint system and

tighten top tether strap ? according to the child restraint manufacturer’s instructions. After removing the child restraint system and top tether strap ?: X Reinstall anchorage ring cover :.

Child seat anchors – LATCH-type (ISOFIX) G Observe Safety notes, see page 52. G Warning! Children too big for a toddler restraint must ride in seats using regular seat belts. Position shoulder belt across 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. Install child seat according to manufacturer’s instructions. The child seat must be firmly attached to both anchors. An incorrectly mounted child seat may come loose during an accident which could result in serious injury or death to the child. Damaged or impact damaged child seats or child seat mounting fittings must be replaced. Each rear seat has two LATCH-type (ISOFIX) anchors for the installation of a LATCH-type (ISOFIX) child seat with matching mounting fittings. Non-LATCH-type (ISOFIX) child seats may also be used and can be installed using the vehicle’s seat belt system. Install child seat according to the manufacturer’s instructions. The LATCH-type (ISOFIX) anchors are covered with upholstery blends.

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X Securing: Press the lever up in direction of

arrow :.

X Check to make sure the child safety locks

are working properly.

X Releasing: Press the lever down in

direction of arrow ;.

Override switch G Observe Safety notes, see page 52. You can disable the rear door window operation and the 12V power outlet in the rear center console for added safety. This can be useful, for instance, when you have children riding in the rear passenger compartment. G Warning! Activate the override switch when children are riding in the back seats of the vehicle. The children may otherwise injure themselves, e.g. by becoming trapped in the rear door window opening.

Information sign : indicates the position of anchor ;. X Fold the upholstery blend upward to access

anchors ;.

X Install a LATCH-type (ISOFIX) child seat

according to the manufacturer’s instructions. A rigid connection between the child seat and the body of the vehicle is established.

Child safety Child safety locks G Observe Safety notes, see page 52. G Warning! Children could open a rear door from the inside. This may cause serious personal injury or an accident. Therefore, secure the rear doors with the child safety locks whenever children are riding in the back seats of the vehicle. The child safety locks on the rear doors enable you to secure each rear door individually. You cannot open a secured rear door from the inside. You can open the rear door from the outside when the vehicle is unlocked.

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X Activating: Press override switch :.

Indicator lamp ; comes on. The functions in the rear are disabled.

You can still operate the rear door windows using the switches located on the door control panel of the driver’s door. X Deactivating: Press override switch :

again. Indicator lamp ; goes out. The functions in the rear are enabled again. For more information on power windows, see the “Controls in detail” section (Y page 94).

Panic alarm

i USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

2.

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

and this device must accept any interference received, including interference that may cause undesired operation of the device.

2.

Example illustration: SmartKey with KEYLESS-GO X Activating: Press and hold ! button : for at least 1 second. An audible alarm and flashing exterior lamps will operate.

X Deactivating: Press ! button : again. or X Insert the SmartKey into the starter switch. or X Press the KEYLESS-GO start/stop button. The SmartKey with KEYLESS-GO must be inside the vehicle.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

Driving safety systems Introduction This section contains information about the following driving safety systems: RABS (Antilock Brake System) RAdaptive Brake RBAS (Brake Assist System) REBP (Electronic Brake Proportioning) RESP® (Electronic Stability Program) i In winter operation, the maximum effectiveness of most of the driving systems described in this section is only

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achieved with winter tires, or snow chains as required.

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 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.

ABS G Observe Safety notes, see page 58. 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. The Antilock Brake System (ABS) regulates the brake pressure so that the wheels do not lock during braking. This allows you to maintain the ability to steer your vehicle. The ABS is functional above a speed of approximately 5 mph (8 km/h) independent of road surface conditions. On slippery road surfaces, the ABS will respond even to light brake pressure. The ABS indicator lamp ! in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is running.

Braking At the instant one of the wheels is about to lock up, a slight pulsation can be felt in the brake pedal. The pulsation indicates that the ABS is in the regulating mode. X Keep firm and steady pressure on the brake

pedal while you feel the pulsation.

Continuous, steady brake pedal pressure yields the advantages provided by the ABS, namely braking power and the ability to steer the vehicle. The pulsating brake pedal can be an indication of hazardous road conditions and functions as a reminder to take extra care while driving.

Emergency brake maneuver X Keep continuous full pressure on the brake

pedal. G Warning! If the ABS malfunctions, other driving safety 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.

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If the ABS malfunctions, the wheels may lock during hard braking, reducing steering capability and extending the braking distance.

BAS G Observe Safety notes, see page 58. The Brake Assist System (BAS) operates in emergency situations. If you apply the brakes very quickly, the BAS provides full brake boost automatically, thereby potentially reducing the braking distance. X Apply continuous full braking pressure until

the emergency braking situation is over. The ABS will prevent the wheels from locking.

When you release the brake pedal, the brakes function again as normal. The BAS is then 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.

Adaptive Brake Adaptive Brake provides a high level of braking safety as well as increased braking comfort. Adaptive Brake takes driver and vehicle characteristics into consideration, thus achieving an optimal braking effect. For more information on the brake system, see (Y page 210).

EBP G Observe Safety notes, see page 58. The Electronic Brake Proportioning (EBP) enhances braking effectiveness by allowing the rear brakes to supply a greater proportion

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59

of the braking effort in straight-line braking without a loss of vehicle stability. G Warning! If the EBP 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.

ESP® G Observe Safety notes, see page 58. The Electronic Stability Program (ESP®) is operational as soon as the engine is running. It monitors the vehicle’s traction (force of adhesive friction between the tires and the road surface) and handling. The ESP® recognizes that the vehicle deviates from the direction of travel as intended by the driver. By applying brakes to individual wheels and by limiting the engine output, the ESP® works to stabilize the vehicle. The ESP® is especially useful while driving off and on wet or slippery road surfaces. The ESP® also stabilizes the vehicle during braking and steering maneuvers. The ESP® warning lamp d in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is running. The ESP® warning lamp d in the instrument cluster flashes when the ESP® is engaged.

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conditions by applying the brakes to a spinning wheel. Except CLS 63 AMG: When you switch off the ESP®, the ETS is still enabled.

Switching off the ESP®

60 Driving safety systems

G Warning! Never switch off the ESP® when you see the ESP® warning lamp d 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.

! Because the ESP® operates

automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO start/stop button in position 0 or 1) when the parking brake is being tested on a brake test dynamometer or when the vehicle is being towed with the front axle raised. Active braking action through the ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty.

! The ESP® will only function properly if you use wheels of the recommended tire size as specified in the “Technical data” section of this Operator’s Manual.

i The Distronic system and cruise control

switch off automatically when the ESP® engages.

Electronic Traction System (ETS) G Observe Safety notes, see page 58. The ETS (Electronic Traction System) is a component of the ESP®. The ETS improves the vehicle’s ability to utilize available traction, especially under slippery road

Switching off the ESP® (except CLS 63 AMG) 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. To improve the vehicle’s traction, switch off the ESP®. This allows the drive wheels to spin and thus cut into surfaces for better grip, for example Rwhen driving with snow chains Rin deep snow Rin 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.

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When you switch off the ESP®, Rthe ESP® does not stabilize the vehicle Rthe engine output is not limited, which

allows the drive wheels to spin and thus cut into surfaces for better grip

Rthe ETS will still apply the brakes to a

spinning wheel

Rthe ESP® continues to operate when you

are braking

Rthe cruise control or the Distronic system

cannot be activated

Rthe cruise control or the Distronic system

switch off if activated

i When the ESP® is switched off and one or more drive wheels are spinning, the ESP® warning lamp d in the instrument cluster flashes. However, the ESP® will then not stabilize the vehicle.

X With the engine running, press ESP®

switch : until the ESP® warning lamp d in the instrument cluster comes on. The ESP® is switched off. G Warning! When the ESP® warning lamp d is illuminated continuously, the ESP® is switched off or is not operational due to a malfunction. 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®.

! Avoid spinning of a drive wheel for an extended period with the ESP® switched off. This may cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty.

Switching off the ESP® (CLS 63 AMG only) 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.

When you switch off the ESP®, Rthe ESP® does not stabilize the vehicle Rthe engine output is not limited, which

allows the drive wheels to spin

Rthe ETS will still apply the brakes to a

spinning wheel

Rthe ESP® operates while you are braking Rthe cruise control or the Distronic system

cannot be activated

Rthe cruise control or the Distronic system

switch off if currently activated

i When the ESP® is switched off and one or more drive wheels are spinning, the ESP® warning lamp d in the instrument cluster flashes. However, the ESP® will then not stabilize the vehicle.

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Anti-theft systems

X With the engine running, press ESP®

switch : until the ESP® warning lamp d in the instrument cluster comes on. The ESP® is switched off. G Warning! When the ESP® warning lamp d is illuminated continuously, the ESP® is switched off or is not operational due to a malfunction. 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®.

! Avoid spinning of a drive wheel for an extended period with the ESP® switched off. This may cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty.

Switching on the ESP® X Press ESP® switch : until the ESP® warning lamp d in the instrument cluster goes out. You are now again in normal driving mode with the ESP® switched on.

Anti-theft systems Immobilizer The immobilizer prevents unauthorized persons from starting your vehicle. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started by anyone with a valid SmartKey that is left inside the vehicle.

Deactivating X Switch on the ignition. i Starting the engine will also deactivate

the immobilizer. In the event that the engine cannot be started (yet the vehicle’s battery is charged), the system is not operational. Contact an authorized Mercedes-Benz Center or call 1-800-FOR-MERCedes (in the USA) or 1-800-387-0100 (in Canada).

Anti-theft alarm system Once the alarm system has been armed, a visual and audible alarm is triggered when someone opens Ra door Rthe trunk Rthe hood The alarm will stay on even if the activating element, a door, for example, is closed immediately. The alarm system will also be triggered when Rthe vehicle is opened with the mechanical

key

Ra door is opened from the inside Rthe trunk is opened with the emergency

release button

To cancel the alarm after it has been triggered, see “Canceling the alarm” (Y page 63).

Activating X With SmartKey: Remove the SmartKey

from the starter switch.

X With KEYLESS-GO: Turn off the engine and

open the driver’s door.

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i If the alarm stays on for more than

30 seconds, the Tele Aid system initiates a call to the Customer Assistance Center automatically. The Tele Aid system will initiate the call provided that Ryou have subscribed to the Tele Aid

service

Rthe Tele Aid service has been activated

properly

Rthe necessary mobile phone, power

supply and GPS coverage are available

X Arming: Lock the vehicle with the

SmartKey or with KEYLESS-GO. The turn signal lamps flash three times to indicate that the vehicle is locked. Indicator lamp : flashes to indicate that the alarm system is armed.

i If the turn signal lamps do not flash three

times, a door or the trunk may not be properly closed. Close the respective element.

X Disarming: Unlock the vehicle with the

SmartKey or with KEYLESS-GO. The turn signal lamps flash once to indicate that the alarm system is disarmed.

i Unless you open a door or the trunk within approximately 40 seconds after unlocking the vehicle: RThe vehicle will be locked again. RThe anti-theft alarm system will be

rearmed.

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63

Canceling the alarm To cancel the alarm, do one of the following: X Insert the SmartKey into the starter switch. X Press button % or & on the

SmartKey.

In vehicles with KEYLESS-GO: X Grasp an outside door handle.

The SmartKey must be within 3 ft (1 m) of the vehicle.

X Press the KEYLESS-GO start/stop button. The SmartKey must be inside the vehicle.

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Vehicle equipment .............................. 66
Locking and unlocking ....................... 66
Starter switch positions ..................... 76
Seats .................................................... 77
Multifunction steering wheel ............. 82
Mirrors ................................................. 84
Memory function ................................. 85
Lighting ................................................ 86
Wipers .................................................. 92
Power windows ................................... 94
Driving and parking ............................ 96
Automatic transmission ................... 101
Instrument cluster ............................ 108
Control system .................................. 110
Driving systems ................................ 127
Climate control system .................... 143
Rear window defroster ..................... 151
Power tilt/sliding sunroof ............... 152
Loading and storing .......................... 154
Useful features ................................. 160

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Vehicle equipment

i This Operator’s Manual describes all

features, standard or optional, potentially available for your vehicle at the time of purchase. Please be aware that your vehicle might not be equipped with all features described in this manual.

Locking and unlocking Notes G Observe Safety notes, see page 52. When unlocking or locking the vehicle with the SmartKey an acoustic signal sounds. The acoustic signal is activated at the factory. If you wish to deactivate the feature, or adjust its signal volume, contact an authorized Mercedes-Benz Center. When unlocking the vehicle, all turn signal lamps flash once. An acoustic signal sounds once, and the locking knobs in the doors move up. The anti-theft alarm system is disarmed. When locking the vehicle, all turn signal lamps flash three times. An acoustic signal sounds three times, and the locking knobs in the doors move down. The anti-theft alarm system is armed. All doors and the trunk must be closed. If you cannot lock or unlock the vehicle with the SmartKey, the batteries in the SmartKey are discharged, the SmartKey is malfunctioning, or the vehicle battery is drained. X Check the batteries in the SmartKey

(Y page 69) and replace them if necessary.

X Use the mechanical key to unlock the

driver’s door and the trunk (Y page 261).

X Use the mechanical key to lock the vehicle

(Y page 262).

X Have the vehicle battery and the vehicle

battery connections checked at an authorized Mercedes-Benz Center.

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

SmartKey Your vehicle comes supplied with two SmartKeys, each with remote control and a removable mechanical key. The SmartKey centrally locks and unlocks Rthe doors Rthe trunk lid Rthe fuel filler flap

Example illustration: SmartKey with KEYLESS-GO : & Lock button ; F Unlock button for trunk lid = % Unlock button When you open a door, the door window on that side lowers slightly. Once you close the door, the door window moves up again. ! A door window will not work if it is blocked

with ice or if the vehicle battery is discharged. If you cannot shut a door, do not force it or you could damage the door or the door window. Fix whatever is affecting the window before trying to shut the door.

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i USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

2.

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

and this device must accept any interference received, including interference that may cause undesired operation of the device.

2.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

Factory setting X Global unlocking: Press button %. Unless you open a door or the trunk within approximately 40 seconds after unlocking the vehicle: RThe vehicle will be locked again. RThe anti-theft alarm system will be

rearmed.

X Global locking: Press button &.

Selective setting If you frequently travel alone, you may wish to reprogramm the SmartKey. Pressing button % will then only unlock the driver’s

door, interior lockable storage compartments, and the fuel filler flap. X Switching on/off: Press and hold buttons

% and & simultaneously for approximately 6 seconds until the battery check lamp (Y page 69) flashes twice.

The SmartKey will then function as follows: X Unlocking driver’s door and fuel filler

flap: Press button % once.

X Global unlocking: Press button %

twice.

X Global locking: Press button &.

KEYLESS-GO Vehicles equipped with KEYLESS-GO come with two SmartKeys with KEYLESS-GO, each with remote control and a removable mechanical key. The KEYLESS-GO function is integrated into the SmartKey. The validity of the SmartKey is checked every time you pull an outside door handle. When the SmartKey is valid, your vehicle unlocks Rthe doors Rthe trunk lid Rthe fuel filler flap When you open a door, the door window on that side lowers slightly. Once you close the door, the door window moves up again. ! A door window will not work if it is blocked

with ice or if the vehicle battery is discharged. If you cannot shut a door, do not force it or you could damage the door or the door window. Fix whatever is affecting the window before trying to shut the door.

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i USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

2.

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

and this device must accept any interference received, including interference that may cause undesired operation of the device.

2.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

Important notes on using KEYLESS-GO RYou can also use the SmartKey with KEYLESS-GO like a normal SmartKey (Y page 66).

RYou can combine KEYLESS-GO functions

with normal SmartKey functions (e.g. unlocking with KEYLESS-GO and locking with button &).

RAlways carry the SmartKey with you. RNever store the SmartKey together with

- electronic items such as a mobile phone

or another SmartKey

- metallic objects such as coins or metal

foil

Doing so could impair the function of the KEYLESS-GO system.

RTo lock or unlock the vehicle, the SmartKey must be located outside the vehicle within approximately 3 ft (1 m) of a door or the trunk.

RIf the SmartKey is positioned farther away from the vehicle, the system may no longer recognize the SmartKey. The vehicle cannot be locked or the engine started via the KEYLESS-GO system.

RIf the SmartKey is removed from the vehicle

(e.g. if a passenger exits the vehicle with the SmartKey) - when pressing the KEYLESS-GO start/ stop button or trying to lock the vehicle with the lock button on an outside door handle the message Key Not Detected appears in the multifunction display - with the engine running, the red message Key Not Detected appears in the multifunction display while driving off Find the SmartKey or change its present location immediately (e.g. place it on the front passenger seat or insert it in shirt pocket).

RIf you have started the engine with the

KEYLESS-GO start/stop button, you can turn it off again by - pressing the KEYLESS-GO start/stop

button inserting the SmartKey into the starter switch when the vehicle is at a standstill and the automatic transmission is in park position P

RThe vehicle could be inadvertently

unlocked if the SmartKey is within 3 ft (1 m) of the vehicle and - an outside door handle is splashed with

water

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or

- you attempt to clean an outside door

handle

RRemember that the engine can be started

by anyone with a SmartKey that is left inside the vehicle. Possibility 1 (One SmartKey in the vehicle, one SmartKey outside the vehicle): If you leave the SmartKey behind when exiting and locking the vehicle, no message appears in the multifunction display. Possibility 2 (One SmartKey in the vehicle, no SmartKey outside the vehicle): When exiting and trying to lock the vehicle, the message Key Detected In Vehicle appears in the multifunction display. The vehicle will not be locked.

Factory setting X Global unlocking: Pull an outside door

handle.

Unless you open a door or the trunk within approximately 40 seconds after unlocking the vehicle: RThe vehicle will be locked again. RThe anti-theft alarm system will be

rearmed.

X Global locking: Press lock button : on an

outside door handle.

Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey. Pulling the driver’s outside door handle will then only unlock the driver’s door and the fuel filler flap. X Switching on/off: Press and hold buttons

% and & simultaneously for approximately 6 seconds until the battery check lamp (Y page 69) flashes twice. KEYLESS-GO will then function as follows: X Unlocking driver’s door and fuel filler flap: Pull the driver’s outside door handle. X Global unlocking: Pull any outside door

handle other than the driver’s outside door handle.

X Global locking: Press lock button : on an

outside door handle.

Checking SmartKey batteries

Example illustration: SmartKey with KEYLESS-GO X Press button & or % on the

SmartKey. Battery check lamp : comes on briefly to indicate that the SmartKey batteries are in order.

If the battery check lamp does not come on briefly during check, the SmartKey batteries are discharged. X Replace the batteries (Y page 264). i You can obtain the required batteries at

any authorized Mercedes-Benz Center.

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i If the batteries are checked within signal

range of the vehicle, pressing button & or % will lock or unlock the vehicle accordingly.

Loss of the SmartKey If you lose your SmartKey or mechanical key, you should do the following: X Have the SmartKey deactivated by an

authorized Mercedes-Benz Center.

X Report the loss of the SmartKey or the mechanical key to your car insurance company immediately.

X Have the mechanical lock replaced if

necessary.

Any authorized Mercedes-Benz Center will be glad to supply you with a replacement. For information on replacing the SmartKey, see “Replacing the SmartKey” (Y page 70).

Replacing the SmartKey Only you, or someone authorized by you can order a replacement key from any Mercedes- Benz Center. In order to do so, the Mercedes- Benz Center will require proof of identity and vehicle ownership with original documents, including the following: If you are the current owner of the vehicle: Rthe vehicle’s current state registration Ra current identity card, passport, or drivers

license

If you are an authorized person: Rthe vehicle’s current state registration Ra current identity card, passport, or drivers

license for the authorized individual

Rsigned and dated authorization from the owner of the vehicle for which the key is being requested

i Duplicated or photocopied

documentation will not be accepted.

Activating the key Once you, or an authorized person, has provided the appropriate documents, the Mercedes-Benz Center will need to synchronize the key to your vehicle before it can be used. In order to do so, the Mercedes- Benz Center need access to your vehicle.

Opening the doors from the inside You can open a door from the inside even when it is locked unless it is secured with the child safety lock (Y page 56). Open door only when conditions are safe to do so.

Example illustration driver’s door 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. To cancel the alarm, see (Y page 63). X Front doors: Pull on inside door

handle ; on the respective front door. If the door was locked, locking knob : will move up. When you open a door, the door window on that side lowers slightly. Once you close the door, the door window moves up again.

! A door window will not work if it is blocked

with ice or if the vehicle battery is discharged. If you cannot shut a door, do not force it or you could damage the door or the door window. Fix whatever is

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affecting the window before trying to shut the door.

X Rear doors: Pull up locking knob on the

respective rear door to unlock door. X Pull on the inside door handle on the

respective rear door.

Automatic central locking You can switch the automatic central locking on or off using the control system (Y page 123). The doors and the trunk lock automatically when the vehicle is set into motion. You can open a locked front door from the inside. Open door only when conditions are safe to do so. The doors are designed to unlock automatically after an accident if the force of the impact exceeds a preset threshold. The vehicle locks automatically when the ignition is switched on and the wheels are turning at a vehicle speed of above 9 mph (15 km/h). You could therefore lock yourself out when the vehicle is pushed or towed or is on a test stand.

Locking and unlocking from the inside G Observe Safety notes, see page 52. You can lock or unlock the vehicle from the inside using the central locking or unlocking switch. This can be useful, for example, if you want to lock the vehicle before starting to drive. The central locking or unlocking switch does not lock or unlock the fuel filler flap.

X Locking: Press central locking switch ;.

When all doors are closed, the vehicle locks.

X Unlocking: Press central unlocking

switch :.

You can open a locked front door from the inside. Open door only when conditions are safe to do so. If the vehicle was previously locked with the central locking switch Rand the SmartKey is set to factory settings,

the complete vehicle is unlocked when a front door is opened from the inside Rand the SmartKey is set to selective

settings, only the front door opened from the inside is unlocked

If the vehicle has been locked centrally with the SmartKey or with KEYLESS-GO, it will not unlock using the central unlocking switch.

Opening the trunk G Warning! Make sure the trunk is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsciousness and death.

! When you open the trunk, the trunk lid swings open upwards. Always make sure there is sufficient overhead clearance.

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You can open the trunk when the vehicle is stationary. A minimum height clearance of 5.9 ft (1.80 m) is required to open the trunk lid.

Opening the trunk from the outside

X Press and hold button F (Y page 66) on the SmartKey until the trunk unlocks and begins to open.

or X Pull on handle :.

In vehicles without KEYLESS-GO: The vehicle must be unlocked.

If the trunk does not open, it is still locked separately (Y page 75). Vehicles with trunk opening/closing system: X Stopping the opening procedure: Press

button F on the SmartKey.

Opening the trunk from the inside

X Pull remote trunk opening switch : until

the trunk begins to open.

If the trunk does not open, it is still locked separately (Y page 75). Vehicles with trunk opening/closing system: X To interrupt the opening procedure:

Release remote trunk opening switch :.

Closing the trunk G Warning! Make sure the trunk is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter vehicle interior resulting in unconsciousness and death. G Warning! To prevent possible personal injury, always keep hands and fingers away from the trunk opening when closing the trunk lid. Be especially careful when small children are around. G Observe Safety notes, see page 52. Do not leave the SmartKey in the open trunk. You may lock yourself out. If the vehicle was previously locked centrally with the SmartKey or KEYLESS-GO, the trunk lid will lock automatically when closed. All turn signal lamps flash three times to confirm locking.

Example illustration: Vehicles with trunk opening/ closing system

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Closing the trunk from the outside manually

stopped and the trunk lid reopens slightly. This will happen only while the trunk is in its upper motion sequence. Check if luggage has been piled too high, for example.

X Lower trunk lid by pulling firmly on

handle :.

X Close trunk with hands placed flat on trunk

lid.

Closing the trunk from the inside automatically G Warning! Maintain sight of the area around the rear of the vehicle while operating the trunk lid with the door mounted switch. Monitor the closing procedure carefully to make sure no one is in danger of being injured. To interrupt the closing procedure, press or pull the door mounted remote trunk opening/ closing switch. Even with the SmartKey removed from the starter switch or the SmartKey with KEYLESS- GO removed from the vehicle, the remote trunk opening/closing switch can be operated. Therefore, do not leave children unattended in the vehicle, 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. In vehicles with trunk opening/closing system you can close the trunk from the inside using the remote trunk opening/ closing switch. If the trunk lid comes into contact with an object while closing, the closing procedure is