2012 Mercedes-benz CL Class Owners Manual

X Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.

X Insert the front tabs of battery tray cover : and then press to close it. X Insert the mechanical key into the

SmartKey.

X Check the function of all SmartKey buttons

on the vehicle.

SmartKey

77

78

SmartKey

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

Possible causes/consequences and M Solutions The SmartKey battery is discharged or nearly discharged. X Try again to 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.

If this does not work: X Check the SmartKey battery (Y page 76) and replace it if

necessary (Y page 76).

the mechanical key.

X Lock (Y page 81) or unlock (Y page 82) the vehicle using

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

The SmartKey is faulty. X Lock (Y page 81) or unlock (Y page 82) the vehicle using

the mechanical key.

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

ignition lock.

There is 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.

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 KEYLESS-GO checked at a qualified specialist workshop. If this does not work: X Check the SmartKey battery (Y page 76) and replace it if

necessary (Y page 76).

the mechanical key.

X Lock (Y page 81) or unlock (Y page 82) the vehicle using

You have lost a SmartKey.

X Have the SmartKey deactivated at a qualified specialist

workshop.

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

Doors

79

Problem You have lost the mechanical key.

The engine cannot be started using the SmartKey.

Possible causes/consequences and M Solutions X Report the loss immediately to the vehicle insurers. X If necessary, have the locks changed as well. The on-board voltage is too low. X Remove the SmartKey and reinsert it into the ignition lock. X Start the engine within 30 seconds of inserting the SmartKey in

the ignition lock.

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

(Y page 430).

or X Jump-start the vehicle (Y page 433). or X Consult a qualified specialist workshop. A door is open. Therefore, the SmartKey cannot be detected as easily. X Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves. X Start your vehicle with the SmartKey in the ignition lock.

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 ignition lock. Always take the SmartKey with you and lock the vehicle. Do not leave children unsupervised in the vehicle, even if they are secured in a child restraint system, and do not give them access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. They could: Rinjure themselves on vehicle parts Rbe seriously or fatally injured by extreme

heat or cold

Rinjure themselves or have an accident with

vehicle equipment that may still be in

operation even after the SmartKey has been removed from the ignition, such as the seat adjustment, steering wheel adjustment or memory function.

If children open a door, they could cause severe or even fatal injury to other persons; if they get out of the vehicle, they could injure themselves when doing so or be seriously or even fatally injured by any passing 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 a child could be burned on these parts.

80 Doors

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

Unlocking and opening doors from the inside You can open a door from inside the vehicle even if it has been locked. Only open the door when the traffic situation permits. If the vehicle was previously locked with the SmartKey or with KEYLESS-GO, opening the vehicle from the inside will activate the anti- theft alarm system. Switch off the alarm (Y page 68).

possible to close the door. Do not attempt to force the door closed. You could otherwise damage the door or the side window.

Centrally locking and unlocking the vehicle from the inside You can centrally lock or unlock the vehicle from the inside. The central locking/unlocking button does 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.

X To unlock: press button :. X To lock: press button ;.

If the front-passenger door is closed, the vehicle locks.

You can open a door from inside the vehicle even if it has been locked. Only open the door when the traffic situation permits. If the vehicle has been locked with the central locking button: Rand the SmartKey is set to its factory

setting, the entire vehicle is unlocked if a door is opened from the inside

Rand the SmartKey is set to an individual

setting, only the door that is opened from inside the vehicle is unlocked.

If the vehicle has been locked centrally with the SmartKey or with KEYLESS-GO, it is not unlocked when the release button for the central locking is used.

X Pull door handle ;.

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

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

the battery is discharged or if the side windows have iced up. It will then not be

Automatic locking feature The vehicle locks automatically when the ignition is switched on and the wheels of the vehicle are turning at a speed of more than 9 mph (15 km/h). You could therefore be locked out when: Rthe vehicle is being pushed. Rthe vehicle is being towed. Rthe vehicle is being tested on a

dynamometer.

You can switch off the automatic locking function via COMAND (Y page 234).

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

Doors

81

X Power closing feature (doors): push the

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

X Power closing feature (trunk lid): lightly

push the trunk lid closed. The power closing feature will pull the trunk lid fully closed.

Unlocking the driver's door (mechanical key) If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key. If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered (Y page 68). X Take the mechanical key out of the

SmartKey (Y page 75).

X Insert the mechanical key into the lock of

the driver's door as far as it will go.

X Firmly turn the mechanical key

counterclockwise as far as it will go to position 1 and hold it in this position.

X Pull the door handle quickly.

The locking knob pops up. The door is unlocked.

X Turn the mechanical key back and remove

it.

X Pull the door handle again. X Insert the mechanical key into the

SmartKey.

82

Trunk

Locking the vehicle If the vehicle can no longer be locked with the SmartKey, you can lock it by taking the following steps. If the central locking in the vehicle is malfunctioning, you cannot lock the trunk. X Open the front-passenger door. X Close the driver's door and the trunk lid. X Press down the locking knob of the driver's

door inside the vehicle.

X Press down the locking knob of the open

front-passenger door.

i Make sure that you have the SmartKey on your person and that it has not been left in the vehicle.

X Close the front-passenger door. X Make sure that the doors and the trunk are

locked.

i If you lock the vehicle as described above,

the fuel filler flap is not locked. The anti- theft alarm system is not armed.

Trunk Important safety notes Do not leave the SmartKey in the trunk. You could otherwise lock yourself out. 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 unsupervised in the vehicle, even if they are secured in a child restraint system, and do not give them access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury. They could: Rinjure themselves on vehicle parts Rbe seriously or fatally injured by extreme

heat or cold

Rinjure themselves or have an accident with

vehicle equipment that may still be in

operation even after the SmartKey has been removed from the ignition, such as the seat adjustment, steering wheel adjustment or memory function.

If children open a door, they could cause severe or even fatal injury to other persons; if they get out of the vehicle, they could injure themselves when doing so or be seriously or even fatally injured by any passing 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 a 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 G WARNING Make sure the trunk lid is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter the vehicle interior resulting in unconsciousness and death.

! The trunk lid swings upwards when

opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

You can limit the opening angle of the trunk lid. This could be useful, for example, if there is insufficient space above the trunk lid. You can switch the Trunk Opening-height Restriction function on or off via COMAND (Y page 235). To open the trunk lid completely, a minimum clearance of 5.90 ft (1.80 m) above the ground is necessary.

The trunk lid can be: Ropened and closed manually from outside Ropened and closed automatically from

outside

Ropened and closed automatically from

inside

Rlocked separately Runlocked with the mechanical key Ropened with the emergency release button

Opening and closing manually Opening X Press the % button on the SmartKey.

X Pull handle :. X Raise the trunk lid.

Closing 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.

Trunk

83

X Pull the trunk lid down using recess :. X If necessary, lock the vehicle with the & button on the SmartKey (Y page 72) or with KEYLESS-GO (Y page 73).

i If a KEYLESS-GO key is detected in the trunk, the trunk lid cannot be locked and then opens again.

Opening/closing automatically from outside Important safety notes G WARNING Make sure the trunk lid is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter the vehicle interior resulting in unconsciousness and death.

! The trunk lid swings upwards when

opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

To open the trunk lid completely, a minimum clearance of 5.90 ft (1.80 m) above the ground is necessary.

Opening You can open the trunk lid using the SmartKey. X Press and hold the F button on the

SmartKey until the trunk lid opens.

84

Trunk

Closing G WARNING Monitor the closing procedure carefully to make sure no one is in danger of being injured. 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. To stop the closing procedure, do one of the following: RPress button F on the SmartKey. RPress the remote trunk opening/closing

switch (on the driver's door).

RPress the trunk closing switch. RPress the KEYLESS-GO locking/closing

switch.

RPull the trunk lid handle. 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.

You can close the trunk lid automatically by using either the closing button or the locking button3.

Press locking button ; in the trunk lid.

i If you leave a KEYLESS-GO key in the

trunk, the trunk lid will not lock.

Opening/closing automatically from the inside 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, release the door mounted remote trunk opening/ closing switch again. 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. G WARNING Make sure the trunk lid is closed when the engine is running and while driving. Among other dangers, deadly carbon monoxide (CO) gases may enter the vehicle interior resulting in unconsciousness and death.

You can open and close the trunk lid from the driver's seat when the vehicle is stationary and unlocked.

X To close: press closing button : in the

trunk lid.

X To close and lock simultaneously: 3 For vehicles with KEYLESS-GO only.

Trunk

85

Unlocking the trunk (mechanical key) ! The trunk lid swings upwards when

opened. Therefore, make sure that there is sufficient clearance above the trunk lid.

If the trunk cannot be unlocked with the SmartKey or KEYLESS-GO, use the mechanical key. If you use the mechanical key to unlock and open the trunk lid, the anti-theft alarm system will be triggered (Y page 68). X Take the mechanical key out of the

SmartKey (Y page 75).

X Insert the mechanical key into the trunk lid

lock as far as the stop.

X Turn the mechanical key counter-clockwise

from position 1 as far as it will go to position 2. The trunk is unlocked.

X Turn the mechanical key back to position

1 and remove it.

X Insert the mechanical key into the

SmartKey.

Trunk emergency release You can open the trunk lid from inside the vehicle with the emergency release button.

X To open: press remote operating switch for

trunk lid : until the trunk lid opens.

X To close: press remote operating switch for trunk lid : until the trunk lid is closed.

Locking the trunk separately You can lock the trunk separately. If you then unlock the vehicle centrally, the trunk remains locked and cannot be opened. X Close the trunk lid. X Take the mechanical key out of the

SmartKey (Y page 75).

X Insert the mechanical key into the trunk lid

lock as far as the stop.

X Turn the mechanical key clockwise from

position 1 to position 2. X Remove the mechanical key. X Insert the mechanical key into the

SmartKey.

86

Side windows

X Briefly press emergency release

button :. The trunk lid unlocks and opens.

The trunk lid can be unlocked and opened with the trunk lid emergency release when the vehicle is stationary or while driving. Trunk lid emergency release light: Remergency release button : flashes for 30 minutes after the trunk lid is opened. Remergency release button : flashes for 60 minutes after the trunk lid is closed. The trunk lid emergency release does not open the trunk lid if the battery is disconnected or discharged.

Side windows Important safety notes G WARNING When opening or closing the door windows, make sure that there is no danger of anyone being harmed by the opening/closing procedure. The front door windows are equipped with automatic operation and the anti-entrapment feature. If in automatic mode a front door window encounters an obstruction that blocks its path, the anti-entrapment feature will stop the door window and open it slightly. The door windows operate differently when the switch is pulled. See the "Problems with door windows" section for details.

The closing of the front door windows can be immediately halted by releasing the switch or, if the switch was pulled past the resistance point and released, by either pressing or pulling the respective switch. The closing of the rear side windows can be immediately halted by releasing the switch. 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 door window opening. G WARNING Do not keep any part of your body up against the window pane when opening a window. The downward motion of the pane may pull that part of your body down between the window pane and the door frame and trap it there. If there is a risk of entrapment, release the switch and pull it to close the window.

Opening and closing the side windows

: Front left ; Front right = Rear right ? Rear left The switches for all side windows are located on the driver's door. There is also a switch on the front-passenger door as well as on the doors in the rear compartment on the left and right-hand sides for the respective side window.

The switches on the driver's door take precedence. i The side windows cannot be operated

from the rear when the override feature for the side windows is activated (Y page 60). X Turn the SmartKey to position 1 or 2 in the

ignition lock.

X To open: press the corresponding switch. X To close: pull the corresponding switch. i You can start automatic operation when opening and closing the front door windows and when opening the rear door windows. To do so, briefly press or pull the switch to beyond the point of resistance in the relevant direction. You can stop automatic operation by pressing or pulling again. i You can continue to operate the side

windows after you switch off the engine or remove the SmartKey. This function is available for up to five minutes or until the driver's or front-passenger door is opened.

Convenience opening feature You can ventilate the vehicle before you start driving. To do this, the key is used to carry out the following functions simultaneously: Runlock the vehicle Ropen the side windows Ropen the sliding sunroof Rswitch on the seat ventilation for the

driver's seat

i The convenience opening feature can

only be operated using the SmartKey. The SmartKey must be close to the driver's door handle.

X Point the tip of the SmartKey at the driver's

door handle.

X Press and hold the % button until the

side windows and the sliding sunroof are in the desired position.

X To interrupt convenience opening:

release the % button.

Side windows

87

Convenience closing General notes When you lock the vehicle, you can simultaneously: Rclose the side windows Rclose the sliding sunroof G WARNING When closing the door windows and the sliding sunroof, make sure that there is no danger of anyone being harmed by the closing procedure. If potential danger exists, proceed as follows: RRelease the & button to stop the closing

procedure. To open, press and hold the % button. To continue the closing procedure after making sure that there is no danger of anyone being harmed by the closing procedure, press and hold the & button.

Vehicles with KEYLESS-GO: RRelease the sensor surface on the outside door handle to stop the closing procedure. RImmediately pull on the same outside door handle and hold firmly. The door windows and the sliding sunroof will open for as long as the door handle is held but the door is not opened.

Using the SmartKey i The SmartKey must be close to the

driver's door handle.

X Point the tip of the SmartKey at the driver's

door handle.

X Press and hold the & button until the side windows and the sliding sunroof are fully closed.

X Make sure that all the side windows and the

sliding sunroof are closed.

X To interrupt convenience closing:

release the & button.

88

Side windows

Using KEYLESS-GO The KEYLESS-GO key must be outside the vehicle. All the doors must be closed.

X Touch recessed sensor surface : on the door handle until the side windows and the sliding sunroof are fully closed.

i Make sure you only touch recessed

sensor surface :.

X Make sure that all the side windows and the

sliding sunroof are closed.

X To interrupt convenience closing:

release recessed sensor surface : on the door handle.

Resetting the side windows You must reset each side window if: Ra front side window cannot be closed

automatically

Ra side window opens again slightly after

being closed manually

X Close all the doors. X Turn the SmartKey to position 1 or 2 in the

ignition lock.

X Pull the corresponding switch on the door

control panel until the side window is completely closed. (Y page 86)

X Hold the switch for an additional second.

If the side window opens again slightly: X Immediately pull the corresponding switch

on the door control panel until the side window is completely closed (Y page 86). X Hold the switch for an additional second. X If the corresponding side window remains closed after the button has been released, the side window has been reset correctly. If this is not the case, repeat the steps above again.

Problems with the side windows Problem: a side window cannot be closed because it is blocked by objects, e.g. leaves in the window guide. X Remove the objects. X Close the side window. Problem: a side window cannot be closed and you cannot see the cause. G WARNING Closing the side windows with increased force or without the anti-entrapment feature could lead to serious or even fatal injury. Make sure that nobody can become trapped when closing the side windows.

If a side window is obstructed during closing and reopens again slightly: X Immediately after the window blocks, pull the corresponding switch again until the side window has closed. The side window is closed with increased force.

If a side window is obstructed again during closing and reopens again slightly: X Immediately after the window blocks, pull the corresponding switch again until the side window has closed. The side window is closed without the anti- entrapment feature.

G WARNING Pulling and holding the switch to close the window immediately after it had been blocked two times will cause the window to close without the anti-entrapment feature for as long as you hold the switch.

Sliding sunroof Important safety notes G WARNING When opening or closing the sliding sunroof, make sure that there is no danger of anyone being harmed by the opening/closing procedure. The sliding sunroof is equipped with automatic operation and the anti-entrapment feature. If the movement of the sliding sunroof is blocked during the closing procedure, the sliding sunroof will stop and open slightly. The sliding sunroof operates differently when the sliding sunroof switch is pressed and held. See the "Problems with the sliding sunroof" section for more details. The opening/closing procedure of the sliding sunroof can be immediately halted by releasing the sliding sunroof switch or, if the sliding sunroof switch was moved past the resistance point and released, by moving the sliding sunroof switch in any direction. G WARNING The sliding sunroof is made out of glass. In the event of an accident, the glass may shatter. This may result in an opening in the roof. In a vehicle rollover, occupants not wearing their seat belts or not wearing them properly may be thrown out of the opening. Such an opening also presents a potential for injury for occupants wearing their seat belts properly, as entire body parts or portions of them may protrude from the passenger compartment.

Sliding sunroof

89

! Only open the sliding sunroof if it is free of snow and ice. Otherwise, malfunctions may occur. Do not allow anything to protrude from the sliding sunroof. Otherwise, the seals could be damaged.

! The weather can change abruptly. It could

start to rain or snow. Make sure that the sliding sunroof is closed when you leave the vehicle. The vehicle electronics can be damaged if water enters the vehicle interior.

i Resonance noises can occur in addition to the usual airflow noises when the sliding sunroof is open. They are caused by minor pressure fluctuations in the vehicle interior. Change the position of the sliding sunroof or open a side window slightly to reduce or eliminate these noises.

Operating the sliding sunroof Opening and closing i You can continue to operate the sliding sunroof after switching off the engine or removing the SmartKey from the ignition lock. This function is available for up to five minutes or until the driver's or front- passenger door is opened.

Overhead control panel : To raise ; To open = To close/lower

90

Sliding sunroof

X Turn the SmartKey to position 1 or 2 in the

ignition lock.

X Press or pull the 3 switch in the

corresponding direction.

i If you press the 3 switch beyond the point of resistance, an automatic opening/ closing process is started in the corresponding direction. You can stop automatic operation by operating the switch again. When raising the roof, automatic operation is only available if the sliding sunroof is in the closed position. When opening the roof, automatic operation is only available if the sliding sunroof is not raised.

The sun protection cover automatically opens along with the sliding sunroof. You can open or close the sun protection cover manually when the sliding sunroof is raised or closed.

Resetting Reset the sliding sunroof if it does not move smoothly. X Turn the SmartKey to position 2 in the

ignition lock.

X Raise the sliding sunroof fully at the rear

(Y page 89).

second.

X Keep the 3 switch pressed for another

X Make sure that the sliding sunroof can be fully opened and closed again (Y page 89).

X If this is not the case, repeat the steps

above again.

! If the sliding sunroof still cannot be opened or closed fully after resetting, contact a qualified specialist workshop.

Problems with the sliding sunroof Problem: the sunroof cannot be closed and you cannot see the cause.

G WARNING You could be severely or even fatally injured when closing the sliding sunroof with increased closing force or if the anti- entrapment feature is deactivated. Make sure that nobody can become trapped when closing the sliding sunroof.

If the sliding sunroof is obstructed during closing and reopens again slightly: X Immediately after the sliding sunroof

blocks, pull the 3 switch in the overhead control panel down to the point of resistance and hold it until the sliding sunroof is closed. The sliding sunroof is closed with increased force.

If the sliding sunroof is obstructed again during closing and reopens again slightly: X Immediately after the sliding sunroof

blocks, pull the 3 switch in the overhead control panel down to the point of resistance and hold it until the sliding sunroof is closed. The sliding sunroof is closed without the anti-entrapment feature. G WARNING Pressing and holding the sliding sunroof switch to close the sliding sunroof immediately after it had been blocked two times will cause the sliding sunroof to close without the anti-entrapment feature for as long as you hold the switch.

! If the sliding sunroof still cannot be

opened or closed as a result of a malfunction, contact a qualified specialist workshop.

Useful information .............................. 92
Correct driver's seat position ............ 92
Seats .................................................... 93
Steering wheel .................................... 98
Mirrors ............................................... 100
Memory function .............................. 102

91

92

Correct driver's seat position

Useful information

i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety- related systems and functions.

i Please read the information on qualified

specialist workshops (Y page 29).

Correct driver's seat position

Observe the safety guidelines on seat adjustment (Y page 93). X Check whether you have adjusted seat =

properly. Electrical seat adjustment (Y page 94) When adjusting the seat, make sure: Ryou are as far away from the driver's air

bag as possible.

Ryou are sitting in a normal upright

position.

Ryou can fasten the seat belt properly. Ryou have moved the backrest to an

almost vertical position.

Ryou have set the seat cushion angle so that your thighs are gently supported. Ryou can depress the pedals properly.

X Check whether the head restraint is

adjusted properly (Y page 95). When doing so, make sure that you have adjusted the head restraint so that the back of your head is supported at eye level by the center of the head restraint.

Observe the safety guidelines on steering wheel adjustment (Y page 98). X Check whether steering wheel : is

adjusted properly. Adjusting the steering wheel electrically (Y page 98) When adjusting the steering wheel, make sure: Ryou can hold the steering wheel with your

arms slightly bent.

Ryou can move your legs freely. Ryou can see all the displays in the

instrument cluster clearly.

Observe the safety guidelines for seat belts (Y page 51). X Check whether you have fastened seat

belt ; properly (Y page 53). The seat belt should: Rfit snugly across your body Rbe routed across the middle of your

shoulder

Rbe routed in your pelvic area across the

hip joints

X Before starting off, adjust the rear-view

mirror and the exterior mirrors (Y page 100) in such a way that you have a good view of road and traffic conditions. X Vehicles with a memory function: save the seat, steering wheel and exterior mirror settings (Y page 102).

Seats

93

Seats Important safety notes G WARNING In order to avoid possible loss of vehicle control, all seat, head restraint, steering wheel and rear view mirror adjustments, as well as fastening of seat belts, must be done before setting the vehicle in motion. G WARNING Do not adjust the driver's seat while driving. Adjusting the seat while driving could cause the driver to lose control of the vehicle. Never travel in a moving vehicle with the seat backrest in an excessively reclined position as this can be dangerous. You could slide under the seat belt in a collision. If you slide under it, the seat belt would apply force at the abdomen or neck. This could cause serious or fatal injuries. The seat backrest and seat belts provide the best restraint when the wearer is in a position that is as upright as possible and seat belts are properly positioned on the body. G WARNING Your seat belt must be adjusted so that you can correctly fasten your seat belt. Observe the following points: Radjust the seat backrest until your arms are

slightly angled when holding the steering wheel.

Radjust the seat to a comfortable seating position that still allows you to reach the accelerator/brake pedal safely. The position should be as far back as possible with the driver still able to operate the controls properly.

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 a seat is being adjusted.

Failure to do so could result in an accident and/or serious personal injury. G WARNING The electrically adjustable seats can be operated at any time. 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. 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 appropriately sized infant restraint, toddler restraint, or booster seat recommended for the size and weight of the child. For additional information, see "Children in the vehicle". 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. 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.

94

Seats

Do not drive the vehicle without the seat head restraints. Head restraints are intended to help reduce injuries during an accident.

! To avoid damage to the seats and the seat heating, observe the following information: Rkeep liquids from spilling on the seats. If liquid is spilled on the seats, dry them as soon as possible.

Rif the seat covers are damp or wet, do not

switch on the seat heating. The seat heating should also not be used to dry the seats.

Rclean the seat covers as recommended;

see the "Interior care" section.

Rdo not transport heavy loads on the

seats. Do not place sharp objects on the seat cushions, e.g. knives, nails or tools. The seats should only be occupied by passengers, if possible.

Rwhen the seat heating is in operation, do

not cover the seats with insulating materials, e.g. blankets, coats, bags, seat covers, child seats or booster seats. ! When you move the seats, make sure that

there are no objects in the footwell or behind the seats. Otherwise, you could damage the seats and the objects.

i The head restraints cannot be removed. Please contact an authorized Mercedes- Benz Center for more information.

Adjusting the seats

: Head restraint height ; Seat height = Seat cushion angle ? Seat cushion length A Seat fore-and-aft adjustment B Backrest angle i If PRE-SAFE® has been activated, the

front-passenger seat and the electrically adjustable rear seats are moved into a more favorable position.

i You can store the seat settings using the

memory function (Y page 102).

i To ensure the largest possible range of

seat settings, certain seat adjustment functions will automatically activate other seat adjustment functions.

i Depending on the seat fore-and-aft setting, the head restraint height is adjusted automatically.

Adjusting the front-passenger seat from the driver's seat G WARNING When adjusting the front passenger seat, make sure the seat, if occupied, is as far from the front passenger front air bag as possible. Otherwise, the passenger could be seriously or even fatally injured in the event of an accident or braking maneuver.

Seats

95

Make sure no one is caught or injured while the seat is being adjusted. Even with the SmartKey or SmartKey with KEYLESS-GO removed from the starter switch or the SmartKey with KEYLESS-GO removed from the vehicle, the power seats 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.

! Do not move the front-passenger seat fully forwards if there are objects in the parcel net in the front-passenger footwell. The objects could otherwise be damaged. You can use the seat switches on the driver's side to adjust the front-passenger seat.

X To activate/deactivate: press button :. If the indicator lamp in button : is lit, you can access the following functions for the front-passenger seat: Rseat adjustment Rseat heating/ventilation Rmemory function

Adjusting the head restraints Adjusting the head restraint height electrically X To adjust the head restraint height: slide

the switch for head restraint adjustment

(Y page 94) up or down in the direction of the arrow.

Rear seat head restraints G WARNING For safety reasons, always drive with the rear head restraints in the upright position when the rear seats are occupied. Keep the area around head restraints clear of articles (e.g. clothing) to not obstruct the folding operation of the head restraints. G WARNING For your protection, drive only with properly positioned head restraints. Adjust the head restraint in such a way 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. With a rear seat occupied, make sure to move the respective head restraint up from the lowest non-use position and have the occupant adjust the head restraint properly. Do not drive the vehicle without the seat head restraints installed when the rear seats are occupied. Head restraints are intended to help reduce injuries during an accident. G WARNING Make sure the rear seat head restraints engage when placing them upright manually. Otherwise their protective function cannot be ensured. The back of the head will not be supported in the event of a collision. That could cause serious or even fatal injuries. Rear seat occupants can be seriously injured or killed.

96

Seats

Folding back the rear seat head restraints from the front

X Make sure that the SmartKey is in position

1 or 2 in the ignition lock.

X Press button :.

Folding the rear seat head restraints into position pneumatically X Press and hold button : until the head

restraints are folded up.

i If a rear-seat passenger inserts the seat belt into the buckle, the head restraint on the corresponding seat folds up automatically.

Folding the rear seat head restraints into position manually

X Pull the head restraint up until it engages.

Folding the front-seat backrests forward/back Important safety notes G WARNING The seat belts can only provide protection if the seat backrest is locked in the upright position. The seat backrest must therefore be locked in the upright position during the journey. Do not drive the vehicle if the seat backrest is not locked in the upright position. If the Lock Seat Backrest Front Right orLock Seat Backrest Front Left

warning message is displayed in the multifunction display, then the corresponding seat backrest is not locked. Carefully slow down and drive with caution to an area which is a safe distance from the road. Always ensure that there is sufficient space behind the seat backrest and fold the seat backrest back fully until it engages in the locking mechanism. The warning message is no longer displayed once the seat backrest engages in the locking mechanism. If both seat backrests are locked and the warning message continues to be displayed, have the system checked by a Mercedes-Benz Center without delay. G WARNING Always ensure that no one can become trapped or injured when the seat is moving. In case potential danger exists, the procedure can be interrupted by moving the seat adjustment switch in the door control panel or by moving the release lever again.

Seats

97

Folding the backrest forwards In order to make it convenient for passengers to get in and out of the rear compartment, the driver's or front-passenger seat: Ris automatically moved forwards when the

backrest is folded forwards

Ris automatically moved backwards when

the backrest is folded back

bolsters of the seat cushion and backrest) of the multicontour seat or active multicontour seat is increased.

Adjusting the lumbar support You can adjust the lumbar support using COMAND (Y page 238).

Switching the seat heating on/off Switching on/off The three red indicator lamps in the button indicate the heating level you have selected. i If the battery voltage is too low, the seat

heating may switch off.

X Pull seat release handle : in the direction

of the arrow and fold the backrest forwards. The head restraint is lowered and the seat moves forwards.

Folding back the backrest X Fold the seat backrest back until it

engages. The seat moves to its original position. The head restraint is raised. The seat backrest is engaged again.

Adjusting the multicontour seat You can adjust the multicontour seat using COMAND (Y page 239).

Adjusting the active multicontour seat You can adjust the active multicontour seat using COMAND (Y page 241). i If PRE-SAFE® has been activated, the air

pressure in the air chambers (the side

The system automatically switches down from level 3 to level 2 after approximately eight minutes. The system automatically switches down from level 2 to level 1 after approximately ten minutes. The system automatically switches off approximately 20 minutes after it is set to level 1. X Make sure that the SmartKey is in position

2 in the ignition lock.

X To switch on: press button : repeatedly

until the desired heating level is set.

X To switch off: press button : repeatedly

until all the indicator lamps go out.

98

Steering wheel

Problems with the seat heating The seat heating has switched itself off prematurely. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. X Switch off electrical consumers which you

do not need, such as the rear window defroster or interior lighting.

Problems with the seat ventilation The seat ventilation has switched off prematurely. The vehicle's electrical system voltage is too low because too many electrical consumers are switched on. X Switch off electrical consumers which you

do not need, such as the rear window defroster or interior lighting.

Switching the seat ventilation on/off Switching on/off The three blue indicator lamps in the buttons indicate the ventilation level you have selected. i If the battery voltage is too low, the seat

ventilation may switch off.

X Make sure that the SmartKey is in position

2 in the ignition lock.

X To switch on: press button : repeatedly

until the desired ventilation level is set.

i You can open the side windows and the

sliding sunroof using the "Convenience opening" feature (Y page 87). The seat ventilation of the driver's seat automatically switches to the highest level. X To switch off: press button : repeatedly

until all the indicator lamps go out.

Steering wheel Important safety notes G WARNING Do not adjust the steering wheel while driving. Adjusting the steering wheel while driving could cause the driver to lose control of the vehicle. The electrical steering wheel adjustment feature can be operated at any time. 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.

Adjusting the steering wheel

: To adjust the steering wheel position

(fore-and-aft adjustment)

; To adjust the steering wheel height

i Other topics:

REASY-ENTRY/EXIT feature

(Y page 99)

Rstoring settings (Y page 102) Roperating the on-board computer

(Y page 331)

Steering wheel heating Switching on/off The steering-wheel heating heats the leather areas of the steering wheel.

X Make sure that the SmartKey is in position

2 in the ignition lock.

X To switch on/off: turn the lever in the

direction of arrow : or ;. Indicator lamp = lights up or goes out. Vehicles without KEYLESS-GO: when you remove the SmartKey from the ignition lock, the steering wheel heating is deactivated. Vehicles with KEYLESS-GO: when you switch off the ignition and open the driver's door, the steering wheel heating is deactivated. i The steering wheel heating is deactivated

when the temperature in the vehicle interior is higher than 86 ‡ (30 †).

i The steering wheel heating is switched off

automatically after about 24 minutes.

Steering wheel

99

EASY-ENTRY/EXIT system Important safety notes The EASY-ENTRY/EXIT feature makes getting in and out of your vehicle easier. You can activate and deactivate the EASY- ENTRY/EXIT feature using COMAND (Y page 232). G WARNING You must make sure no one can become trapped or injured by the moving steering wheel and driver's seat when the EASY- ENTRY/EXIT feature is activated. To stop steering wheel and seat movement, do one of the following: Rmove the seat adjustment switch. Rmove the steering column adjustment

switch.

Rpress one of the memory function position

buttons or memory button M.

Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. Children could open the driver's door and unintentionally activate the EASY-ENTRY/ EXIT feature. This could result in an accident and/or serious personal injury. G WARNING Let the system complete the adjustment procedure before setting the vehicle in motion. All steering wheel adjustment must be completed before setting the vehicle in motion. Driving off with the steering wheel still adjusting could cause the driver to lose control of the vehicle.

! Do not activate the EASY-ENTRY/EXIT

feature, if the seat backrest is reclined too far backwards. This can damage the front or rear seats. You must first move the backrest to a vertical position.

100 Mirrors

Position of the steering wheel and the driver's seat when the EASY-ENTRY/ EXIT feature is active The steering wheel tilts upwards and the driver's seat moves backwards if you: Rremove the SmartKey from the ignition lock Ropen the driver's door when the SmartKey is in the ignition lock or KEYLESS-GO is in position 1

i The steering wheel only moves upwards if

it has not already reached the upper end stop. The driver's seat only moves backwards if it is not already in the rearmost position.

Position of the steering wheel and the driver's seat for driving If you insert the SmartKey into the ignition lock with the driver's door closed, depending on the setting, the position of the steering wheel and the driver's seat will be changed to the previously set position. The last position of the steering wheel or seat is stored if: Rthe ignition is switched off or Rthe setting is stored with the memory

function.

Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is triggered in an accident, the steering column will move upwards when the driver's door is opened. This occurs irrespective of the position of the SmartKey in the ignition lock. This makes it easier to exit the vehicle and rescue the occupants. The crash-responsive EASY-EXIT feature is only operational if the EASY-EXIT/ENTRY feature is activated in the on-board computer.

Mirrors Exterior mirrors Adjusting the exterior mirrors G WARNING Exercise care when using the passenger-side exterior rear view mirror. The mirror surface is convex (outwardly curved surface for a wider field of view). Objects in mirror are closer than they appear. Check your interior rear view mirror and glance over your shoulder before changing lanes.

The exterior mirrors are automatically heated if the rear window defroster is switched on and the outside temperature is low.

X Make sure that the SmartKey is in position

1 or 2 in the ignition lock.

X Press button ; for the right-hand exterior

mirror or button = for the left-hand exterior mirror. The indicator lamp lights up in the button that has been pressed.

X Press adjustment button : up, down, to

the right or to the left until the exterior mirror is set to a position that provides you