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air bag inflates.
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앫 that the seat was occupied by a small individual (such as a young teenager or a small adult) or a child weighing more than the weight of a typical 12-month-old child in a stan- dard child restraint - instances where the system may suppress de- ployment of the passenger front air bag even though the impact met the criteria and was of sufficient se- verity to deploy the driver front air bag.
The 75 indicator lamp is located in the center console.
1 Indicator lamp
The 75 indicator lamp 1 will be illuminated, except with the SmartKey re- moved or in starter switch position 0.
Warning!
If the 1 indicator lamp and the 75 indicator lamp are lit at the same time, there is a malfunction in the Occupant Classification System. The front passenger front air bag will be deactivated in this case.
In order to ensure proper operation of the air bag system and OCS: 앫 Have the system checked as soon as
possible by qualified technicians. Contact an authorized Mercedes-Benz Center.
앫 Do not place more than 4.4 lbs (2 kg)
into the ruffled storage bag on the back of the front passenger seat. Otherwise, the OCS may not be able to properly ap- proximate the occupant weight category.
Safety and Security Occupant safety
앫 Do not place objects under and/or
around the front passenger seat.
앫 Do not hang anything from or attach any
items to the seats.
앫 Do not stuff objects such as books be- tween the middle console and the front passenger seat.
앫 Do not move the front passenger seat
backwards against stiff objects.
앫 Sit properly belted in a nearly upright
position with your back against the seat backrest.
앫 Do not lean on the armrests or lift your- self from the seat by using the handle over the door as this may cause the OCS to be unable to correctly approximate the occupant weight category.
앫 Only have the seat repaired or replaced
by an authorized Mercedes-Benz Center.
앫 Read and observe all warnings in this
chapter.
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Safety and Security Occupant safety
Self-test Occupant Classification Sys- tem After turning the SmartKey in the starter switch to position 1 or 2 or pressing the KEYLESS-GO* start/stop button once or twice, the 75 indicator lamp 1 located in the center console illuminates. If an adult occupant is properly sitting on the front passenger seat and the system sens- es the occupant as being an adult, the 75 indicator lamp will illuminate and go out after approximately 6 seconds. If the seat is not occupied and the system senses the front passenger seat as being empty, the 75 indicator lamp will illuminate and not go out.
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Warning!
If the indicator lamp should not illuminate, the system is not functioning. You must see an authorized Mercedes-Benz Center before seating any child on the front passenger seat.
For more information, see the “Practical hints” section (컄 page 393).
Warning!
Never place anything between seat cushion and child seat (e.g. pillow), since it reduces the effectiveness of the Occupant Classifi- cation System. The bottom of the child seat must make full contact with the passenger seat cushion. An incorrectly mounted child seat could cause injuries to the child in case of an accident, instead of increasing protec- tion for the child.
Follow the manufacturer’s instructions for installation of child seats.
Installation of infant and child restraint systems This vehicle is equipped with tether an- chorages for a top tether strap at each of the rear seating positions.
Not foldable rear seat backrest
1 Cover 왘 Remove cover 1 from anchorage ring. 왘 Guide tether strap between head re-
straint and top of the seat back.
왘 Head restraint must be installed (if re- movable) and positioned such that the top tether strap can pass freely be- tween the head restraint and the top of the seat back. Make sure the tether strap is not twist- ed.
2 Hook 3 Anchorage ring 왘 Securely fasten the hook 2 to the an-
chorage ring 3.
For safety, make sure the hook 2 has attached to the ring 3 beyond the safety catch, as illustrated.
Once the top tether anchorage hook is at- tached, the child restraint itself can be se- cured. Secure the child restraint and tighten the top tether strap according to the child restraint manufacturer’s instruc- tions.
Foldable rear seat backrest* 왘 Fold rear seat backrest slightly forward
(컄 page 271).
왘 Remove cover from anchorage ring. 왘 Guide tether strap between head re-
straint and top of the seat back.
왘 Head restraint must be positioned such that the top tether strap can pass freely between the head restraint and the top of the seat back. Make sure the tether strap is not twist- ed.
Safety and Security Occupant safety
2 Hook 3 Anchorage ring 왘 Securely fasten the hook 2 to the an-
chorage ring 3.
For safety, make sure the hook 2 has attached to the ring 3 beyond the safety catch, as illustrated below.
컄컄
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Child seat anchors - LATCH type This vehicle is equipped with two LATCH (Lower Anchors and Tethers for CHildren) type anchors (at each of the outer rear seats) for the installation of a “LATCH” child seat with the matching mounting fit- tings. The anchors are located behind an uphol- stery blend.
Safety and Security Occupant safety
컄컄
2 Hook 3 Anchorage ring 왘 Swing rear seat backrest to the rear un-
til it engages.
왘 Check the rear seat backrest to be
locked in its upright position (컄 page 399).
Once the top tether anchorage hook is attached, the child restraint itself can be secured. Secure the child restraint and tighten the top tether strap according to the child restraint manufacturer’s instruc- tions.
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1 Indicates the position of the anchors 2 Anchors 왘 Lift up upholstery blend to access the
anchors.
왘 Install child seat according to the
manufacturer’s instructions.
! Make sure the seat belt for the center seat can operate freely with a child seat installed.
Non-LATCH type child seats may also be used and can be installed using the vehicle’s seat belt system (컄 page 78). Install child seat according to the man- ufacturer’s instructions.
Warning!
Children too big for a toddler restraint must ride in seats using regular seat belts. Posi- tion shoulder belt across chest and shoul- der, not face or neck. A booster seat may be necessary to achieve proper belt positioning for children over 41 lbs until they reach a height where a lap/shoulder belt fits proper- ly without a booster.
Install child seat according to manufactur- er’s instructions.
The child seat must be firmly attached in the right and left side anchors 2. 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 re- placed.
Do not leave children unattended in the ve- hicle, even if the children are secured in a child restraint system.
Safety and Security Occupant safety
Blocking of rear door window operation
1 Override switch 2 Indicator lamp 왘 Press override switch 1.
Indicator lamp 2 comes on. The rear door windows can no longer be operat- ed using the switches located in the rear doors.
Operation of the rear door windows with the switches located on the door control panel of the driver’s door is still possible.
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Safety and Security Occupant safety
Warning!
Activate the override switch when children are riding in the back seats of the vehicle. The children may otherwise injure them- selves, e.g. by becoming trapped in the win- dow opening.
When leaving the vehicle, always remove the SmartKey or SmartKey with KEYLESS-GO* from the starter switch, take it with you, and lock the vehicle. Do not leave children unat- tended in the vehicle, or with access to an unlocked vehicle. Unsupervised use of vehi- cle equipment can cause an accident and/or serious personal injury.
For more information on power windows, see the “Controls in detail” section (컄 page 231).
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왔 Panic alarm An audible alarm and flashing exterior lamps will operate for approximately 2½ minutes.
1 Â button
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
interference, and
(2) this device must accept any inter-
ference received, including interfer- ence that may cause undesired operation.
Any unauthorized modification to this device could void the user’s authority to operate the equipment.
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 interfer-
ence, and
(2) this device must accept any inter-
ference received, including interfer- ence that may cause undesired operation of the device.
Any unauthorized modification to this device could void the user’s authority to operate the equipment.
Safety and Security Panic alarm
Activating
왘 Press and hold button 1 for at least
1 second.
Deactivating
왘 Press button 1 again.
or
왘 Insert the SmartKey or the SmartKey
with KEYLESS-GO* in the starter switch. or
왘 Press the KEYLESS-GO* start/stop
button. The SmartKey with KEYLESS-GO must be inside the vehicle.
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Safety and Security Driving safety systems
In this section you will find information on the following driving safety systems: 앫 ABS (Antilock Brake System) 앫 BAS (Brake Assist System) 앫 ESP® (Electronic Stability Program) 앫 Electrohydraulic brake system 앫 4MATIC (Four Wheel Electronic
Traction System)
In winter operation, the maximum ef- fectiveness of the ABS, the BAS, the ESP®, electrohydraulic brake system and 4MATIC is only achieved with win- ter tires (컄 page 358), or snow chains as required.
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Warning!
ABS
The following factors increase the risk of ac- cidents: 앫 Excessive speed, especially in turns 앫 Wet and slippery road surfaces 앫 Following another vehicle too closely The ABS, BAS, ESP®, electrohydraulic brake system and 4MATIC cannot reduce this risk.
Always adjust your driving style to the pre- vailing road and weather conditions.
Warning!
Do not pump the brake pedal. Use firm, steady brake pedal pressure instead. Pump- ing 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 ap- proximately 5 mph (8 km/h) independent of road surface conditions. On slippery road surfaces, the ABS will re- spond even to light brake pressure. The - indicator lamp in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is run- ning.
Braking If the ABS activates during braking, the ABS/ESP® warning lamp v in the in- strument cluster dial flashes. Because of the electrohydraulic brake system, you will not feel any pulsation in the brake pedal. 왘 Keep firm and steady pressure on the
brake pedal.
Continuous, steady brake pedal pressure yields the advantages provided by the ABS, namely braking power and the ability to steer the vehicle. The ABS/ESP® warning lamp v flashes whenever the ABS is activated which can be an indication of hazardous road condi- tions and functions as a reminder to take extra care while driving.
Safety and Security Driving safety systems
Emergency brake maneuver 왘 Keep continuous full pressure on the
Warning!
brake pedal.
Warning!
When the ABS is malfunctioning, the BAS and the ESP® are also switched off. When the ABS is malfunctioning, the wheels may lock during hard braking, reducing steering capability and extending the brak- ing distance.
The ABS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking or steering efficiency be- yond that afforded by the condition of the vehicle brakes and tires or the traction af- forded. The ABS cannot prevent accidents, including those resulting from excessive speed in turns, following another vehicle too closely, or hydroplaning. Only a safe, atten- tive, and skillful driver can prevent acci- dents. The capabilities of an ABS equipped vehicle must never be exploited in a reck- less or dangerous manner which could jeop- ardize the user’s safety or the safety of others.
For more information, see the “Practical hints” section (컄 page 375).
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Safety and Security Driving safety systems
BAS
The Brake Assist System (BAS) operates in emergency situations. If you apply the brakes very quickly, the BAS automatically provides full brake boost, thereby poten- tially reducing the braking distance. 왘 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.
Warning!
If the BAS is malfunctioning, the brake sys- tem is still functioning normally, but without the additional brake boost available that BAS would normally provide in an emergen- cy braking maneuver. Therefore, the braking distance may increase.
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Warning!
ESP®
The BAS cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase braking efficiency beyond that afforded by the condition of the vehicle brakes and tires or the traction afforded. The BAS cannot prevent accidents, includ- ing those resulting from excessive speed in turns, following another vehicle too closely, or hydroplaning. Only a safe, attentive, and skillful driver can prevent accidents. The ca- pabilities of a BAS equipped vehicle must never be exploited in a reckless or danger- ous manner which could jeopardize the us- er’s safety or the safety of others.
The Electronic Stability Program (ESP®) is operational as soon as the engine is run- ning and monitors the vehicle’s traction (force of adhesive friction between the tires and the road surface) and handling. The ESP® recognizes when a wheel is spin- ning or if the vehicle starts to skid. By ap- plying brakes to the appropriate wheel and by limiting engine output, the ESP® works to stabilize the vehicle. The ESP® is espe- cially useful while driving off and on wet or slippery road surfaces. The ESP® also sta- bilizes the vehicle during braking maneu- vers. The ABS/ESP® warning lamp v in the instrument cluster flashes when the ESP® is engaged. The ABS/ESP® warning lamp v in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is running.
Warning!
Warning!
Never switch off the ESP® when you see the ABS/ESP® warning lamp v flashing in the instrument cluster. In this case proceed as follows: 앫 While driving off, apply as little throttle
as possible.
앫 While driving, ease up on the accelera-
tor.
앫 Adapt 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 result- ing from excessive speed.
The ESP® cannot prevent the natural laws of physics from acting on the vehicle, nor can it increase the traction afforded. The ESP® cannot prevent accidents, including those resulting from excessive speed in turns, or hydroplaning. Only a safe, attentive, and skillful driver can prevent accidents. The ca- pabilities of an ESP® equipped vehicle must never be exploited in a reckless or danger- ous manner which could jeopardize the us- er’s safety or the safety of others.
The ESP® will only function properly if you use wheels of the recommended tire size (컄 page 473).
Safety and Security Driving safety systems
Vehicles without 4MATIC: Because of the ESP’s® automatic oper- ation, the engine and the 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: 앫 the parking brake is being tested on
a brake test dynamometer
앫 the vehicle is being towed with the
front axle raised
Active braking action through the ESP® may otherwise seriously damage the brake system. For information on vehicles with 4MATIC, see “Four wheel electronic traction system (4MATIC) with the ESP®” (컄 page 100).
For more information, see the “Practical hints” section (컄 page 375).
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Safety and Security Driving safety systems
Switching off the ESP®
Warning!
The ESP® should not be switched off during normal driving other than in the circum- stances described below. Disabling of the system will reduce vehicle stability in driving maneuvers. Do not switch off the ESP® when a Minispare or collapsible tire is mounted.
To improve the vehicle’s traction, turn off the ESP® in driving situations where it would be advantageous to have drive wheels spin and thus cut into surfaces for better grip such as: 앫 when driving with snow chains 앫 in deep snow 앫 in sand or gravel
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The switch is located on the center con- sole.
1 ESP® switch (off/on) 왘 Press ESP® switch 1 until the
ABS/ESP® warning lamp v in the instrument cluster comes on. The ESP® is deactivated.
Turn on the ESP® immediately if the aforementioned circumstances do not apply anymore.
When you switch off the ESP® 앫 the ESP® does not stabilize the vehicle 앫 the engine output is not limited, which
allows the drive wheels to spin and thus cut into surfaces for better grip 앫 the traction control will still brake a
spinning wheel
앫 the ESP® continues to operate when
you are braking
앫 you cannot activate Distronic*
When the ESP® is switched off and one or more drive wheels are spinning, the ABS/ESP® warning lamp v in the speedometer flashes. However, the ESP® will then not stabilize the vehicle.
Warning!
Switching on the ESP® 왘 Press ESP® switch 1.
The ABS/ESP® warning lamp v in the instrument cluster goes out. You are now again in normal driving mode with the ESP® switched on.
Turn on the ESP® immediately if the aforementioned circumstances do not apply anymore.
When the ABS/ESP® warning lamp v is illuminated continuously, the ESP® is switched off.
Adapt your speed and driving to the prevail- ing 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.
Safety and Security Driving safety systems
Electrohydraulic brake system
The electrohydraulic brake system com- bines a hydraulic brake circuit with elec- tronically controlled brake servo assistance. You have increased braking safety and improved braking comfort.
Warning!
Never ignore a brake malfunction indicated in the speedometer display, for example by the ; (USA only) or 3 (Canada only) warning lamp. Refer to the “Practical hints” section (컄 page 376). Also read and ob- serve the messages in the instrument clus- ter display (컄 page 386).
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Safety and Security Driving safety systems
Warning!
The electrohydraulic brake system requires electrical power to operate.
A malfunction in the vehicle’s power supply or electrical system may impair brake sys- tem operation and switch it into its emer- gency operation mode. In such a case, the red brake warning lamp (컄 page 376) and warning messages in the instrument cluster (컄 page 386) come on while driving. To brake, the driver must then apply signifi- cantly greater brake pedal pressure and de- press the pedal much further to obtain the expected braking effect. If necessary, apply full pressure to the brake pedal. Brakes may only be applied to the front wheels. Stop- ping distance is increased!
If there is a malfunction in the electrohy- draulic brake system, we recommend that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment.
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A tow bar must be used if circumstances do not permit the use of the recommended towing methods and the vehicle requires towing with all four wheels on the ground. Towing the vehicle with all four wheels on the ground is only permissible for distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h). For more infor- mation, refer to “Towing the vehicle” (컄 page 457).
The electrohydraulic brake system is auto- matically activated when you 앫 unlock the vehicle with the SmartKey
or the KEYLESS-GO*
앫 open the driver’s or passenger door 앫 turn the SmartKey in the starter switch
to position 1
앫 in vehicles with KEYLESS-GO*, press the start/stop button on the gear se- lector lever once
앫 depress the brake pedal 앫 release the parking brake
If the electrohydraulic brake system is activated as the brake pedal is first de- pressed, you may feel a reduced pedal resistance and longer pedal travel than normal. When releasing the pedal, you may also feel the brake pedal pulsate and you may hear a sound which is caused by the activation of the electro- hydraulic brake system pump. This is normal and not an indication of a mal- function. Pedal travel returns to normal when you release the brake pedal and the sound soon ceases. If you experience the above while driv- ing and the red brake warning lamp (컄 page 376) illuminates and/or warn- ing messages appear in the instrument cluster (컄 page 386), the brake system is malfunctioning. Follow the instruc- tions of the warning message(s) and have the brake system checked imme- diately.
The electrohydraulic brake servo assis- tance switches off automatically 앫 approximately 2 minutes after you turned the SmartKey in the starter switch to position 0 or removed the SmartKey
앫 approximately 2 minutes after you
pressed the KEYLESS-GO* start/stop button to turn off the engine or power supply and opened the driver’s door (with driver’s door open, the starter switch is set to position 0, same as SmartKey removed from starter switch)
앫 approximately 20 seconds after you
locked the vehicle from outside.
Warning!
Have brake pad replacement and other work on the electrohydraulic brake system car- ried out by qualified technicians only. Con- tact an authorized Mercedes-Benz Center for further information. The electrohydraulic brake system must be deactivated prior to working on the system. High pressure is in- termittently built up in the system as part of its automatic self-test. In addition, the sys- tem is automatically activated when the ve- hicle is unlocked by SmartKey, when the driver or passenger door is opened, when the starter switch is turned to position 1, when the brake pedal is depressed or when the parking brake is released. Failure to de- activate the system prior to maintenance will cause brake pistons to extend and brake fluid to leak, which may result in injuries (contusions and acid burns). Extended brake pistons may also cause injury.
Safety and Security Driving safety systems
Note on driving with the electrohydrau- lic brake system 앫 Following extended periods of only mi-
nor loads to your brake system, you should occasionally apply the brakes when traveling at high speeds. This im- proves the grip of the brake pads.
Warning!
Be very careful not to endanger other road users when you apply the brakes.
앫 After driving on wet or snow-covered roads, you should apply your brakes firmly before parking your vehicle. This produces heat which serves to dry the brake disks and help prevent corro- sion.
앫 On long and steep grades, shift to a lower gear (gear range 1, 2, or 3) to prevent the brakes from overheating and to reduce brake wear.
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Safety and Security Driving safety systems
앫 After hard braking, it is advisable to
drive on for some time so that the air stream will cool down the brakes fast- er.
앫 Only Mercedes-Benz approved compo-
nents (e.g. brake pads) should be in- stalled on your vehicle. Brake pads not approved by Mercedes-Benz may im- pair the safety of your vehicle.
Warning!
If you see the ESP® warning lamp v flashing in the speedometer, proceed as fol- lows: 앫 While driving off, apply as little throttle
as possible
앫 While driving, ease up on the accelera-
tor
Four wheel electronic traction system (4MATIC) with the ESP®
앫 Adapt your speed and driving style to
the prevailing road conditions
Models with all-wheel-drive only. The 4MATIC improves vehicle’s ability to use available traction, e.g. during winter operation in mountains under snowy conditions, by applying power to all four wheels.
Failure to observe these guidelines could cause the vehicle to skid. The ESP® cannot prevent accidents result- ing from excessive speed.
Do not tow with one axle raised. Otherwise the transfer case can be damaged, which is not covered by the Mercedes-Benz Limited Warranty.
Performance testing must only be con- ducted on a two-axle dynamometer. Otherwise the transfer case can be damaged, which is not covered by the Mercedes-Benz Limited Warranty.
Because of the ESP’s® automatic oper- ation, the engine and the 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. Active braking action through ESP® may otherwise seriously damage the front or rear axle brake system. Operational tests with the engine running can only be conducted on a two-axle dynamometer.
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Safety and Security Anti-theft systems
왔 Anti-theft systems Immobilizer
Deactivating
Anti-theft alarm system
The immobilizer prevents unauthorized persons from starting your vehicle.
With the SmartKey 왘 Switch on the ignition (컄 page 36).
Activating
With the SmartKey 왘 Remove the SmartKey from the starter
switch.
With KEYLESS-GO* 왘 Turn off the engine by means of the
start/stop button on the gear selector lever.
왘 Open the driver’s door.
With KEYLESS-GO* 왘 Start the engine by means of the
start/stop button on the gear selector lever.
In case 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).
Once the alarm system has been armed, a visual and audible alarm is triggered when someone opens: 앫 a door 앫 the trunk 앫 the hood The alarm will stay on, even if the activat- ing element (a door, for example) is imme- diately closed.
101
Safety and Security Anti-theft systems
The alarm system will also be triggered when 앫 someone attempts to raise the vehicle 앫 the vehicle is opened using the
mechanical key
앫 someone opens a door from the inside 앫 someone opens the trunk with the
emergency release button
If the alarm stays on for more than 30 seconds, a call to the Response Center is initiated automatically by the Tele Aid system* (컄 page 286) provid- ed Tele Aid service was subscribed to and properly activated, and that neces- sary cellular service and GPS coverage are available.
102
Arming the alarm system The indicator lamp located in the central locking switch in the center console.
If the turn signal lamps do not flash three times, one of the following ele- ments may not be properly closed: 앫 a door 앫 the trunk 앫 the hood Close the respective element and lock the vehicle again.
1 Indicator lamp 왘 Lock the vehicle with the SmartKey or
KEYLESS-GO*. The turn signal lamps flash three times to indicate that the alarm system is armed. The indicator lamp 1 begins to flash after approximately 30 seconds after arming the alarm system.
Disarming the alarm system 왘 Unlock your vehicle with the SmartKey
With KEYLESS-GO* 왘 Pull an outside door handle.
or KEYLESS-GO*. The turn signal lamps flash once to indicate that the alarm system is disarmed.
The alarm system will rearm automati- cally after approximately 40 seconds if neither a door nor the trunk was opened.
The SmartKey with KEYLESS-GO must be within 3 ft (1 m) of the vehicle.
or 왘 Press the KEYLESS-GO* start/stop
button (컄 page 37). The SmartKey with KEYLESS-GO must be inside the vehicle.
Canceling the alarm
With the SmartKey 왘 Insert the SmartKey in the starter
switch.
or 왘 Press button Œ or ‹ on the
SmartKey.
Safety and Security Anti-theft systems
Tow-away alarm
Once the tow-away alarm is armed, a visual and audible alarm will be triggered when someone attempts to raise the vehicle.
The tow-away protection alarm is trig- gered, for example, if the vehicle is lift- ed on one side. If the alarm stays on for more than 30 seconds, a call to the Response Center is initiated automatically by the Tele Aid system (컄 page 286), provided that the Tele Aid service was sub- scribed to and properly activated, and that necessary cellular service and GPS coverage are available.
Arming tow-away alarm 왘 Lock the vehicle with the SmartKey or
KEYLESS-GO*. The tow-away alarm is automatically armed after about 30 seconds.
103
Safety and Security Anti-theft systems
Disarming tow-away alarm To prevent triggering the tow-away alarm feature, switch off the tow-away alarm be- fore towing the vehicle, or when parking on a surface subject to movement, such as a ferry or auto train. The button is located on the overhead con- trol panel.
1 Tow-away alarm off button 왘 Switch off the ignition and remove the
SmartKey from the starter switch.
You cannot disarm the tow-away alarm when the ignition is switched on.
104
왘 Press button 1.
Canceling tow-away alarm
The indicator lamp in the button 1 comes on briefly.
왘 Exit and lock the vehicle with the
SmartKey or (vehicles with KEYLESS-GO*) the lock button at each door handle.
When you unlock the vehicle, the tow-away protection disarms automati- cally. The tow-away alarm remains disarmed until you lock the vehicle again.
With the SmartKey 왘 Insert the SmartKey in the starter
switch.
or 왘 Press button Œ or ‹ on the
SmartKey.
With KEYLESS-GO* 왘 Pull an outside door handle.
The SmartKey with KEYLESS-GO must be within 3 ft (1 m) of the vehicle.
or 왘 Press the KEYLESS-GO* start/stop
button (컄 page 38). The SmartKey with KEYLESS-GO must be inside the vehicle.
Controls in detail Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Good visibility
Dual-zone automatic climate control (USA only)
4-zone automatic climate control*
Power windows
Power tilt/sliding sunroof*
Panorama roof with power tilt/sliding panel*
Driving systems
Loading
Useful features
105
Controls in detail Locking and unlocking
In the “Controls in detail” section you will find detailed information on how to oper- ate the equipment installed on your vehi- cle. If you are already familiar with the basic functions of your vehicle, this section will be of particular interest to you. To quickly familiarize yourself with the ba- sic functions of the vehicle, refer to the “Getting started” section of this manual. The corresponding page numbers are given at the beginning of each segment.
106
For more information on locking and un- locking, see “Getting started” (컄 page 34) and (컄 page 62).
SmartKey
Your vehicle comes supplied with two SmartKeys, each with remote control and a removable mechanical key. The locking tabs for the mechanical key portion of the two SmartKeys are a different color to help distinguish each key unit. The SmartKey provides an extended oper- ating range. To prevent theft, however, it is advisable to only unlock the vehicle when you are in close proximity to it. The SmartKey centrally locks and unlocks 앫 the doors 앫 the trunk 앫 the fuel filler flap
SmartKey with remote control 1 ‹ Lock button 2 Š Unlock button for the trunk 3 Mechanical key locking tab 4 Œ Unlock button 5 Battery check lamp 6  Panic button (컄 page 91)
Warning!
When leaving the vehicle, always remove the SmartKey from the starter switch, take it with you and lock the vehicle. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. It is possible for children to open a looked door from the inside, which could result in an accident and/or serious personal injury.
To prevent possible malfunction, avoid exposing the SmartKey to high levels of electromagnetic radiation.
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
interference, and
(2) 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.
Controls in detail Locking and unlocking
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
(2) this device must accept any
interference received, including interference that may cause undesired operation of the device. Any unauthorized modification to this device could void the user’s authority to operate the equipment.
The electrohydraulic brake system is activated (컄 page 97).
107
Controls in detail Locking and unlocking
You can also open and close the power windows and tilt/sliding sunroof* or tilt/sliding panel* using the SmartKey (컄 page 234).
Factory setting
Your vehicle may be equipped with an acoustic lock and unlock confirmation signal feature. If your vehicle is equipped with this feature and the fea- ture is activated, an acoustic signal will sound when the vehicle is locked or un- locked using the SmartKey. To determine whether or not your vehi- cle is equipped with this feature, con- tact an authorized Mercedes-Benz Center. If equipped and you wish to ac- tivate or deactivate the feature, or ad- just its signal volume, also contact an authorized Mercedes-Benz Center.
108
Global unlocking 왘 Press button Œ.
Global locking 왘 Press button ‹.
앫 All turn signal lamps flash once. 앫 An acoustic signal sounds once
(if equipped and feature activated).
앫 The locking knobs in the doors
move up.
앫 The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically and reactivate the anti-theft alarm system within approximately 40 seconds of un- locking if: 앫 neither a door nor the trunk is opened 앫 the SmartKey is not inserted in the
starter switch
앫 the central locking switch is not acti-
vated
앫 All turn signal lamps flash three
times.
앫 An acoustic signal sounds three
times (if equipped and feature acti- vated).
앫 The locking knobs in the doors
move down.
앫 The anti-theft alarm system is
armed.
Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey so that pressing Œ only unlocks the driver’s door and the fuel filler flap. 왘 Press and hold buttons Œ and ‹ simultaneously for about 5 seconds un- til battery check lamp 5 (컄 page 106) flashes twice. The SmartKey will then function as fol- lows:
Global locking 왘 Press button ‹.
앫 All turn signal lamps flash three
times.
앫 An acoustic signal sounds three
times (if equipped and feature acti- vated).
앫 The locking knobs in the doors
move down.
앫 The anti-theft alarm system is
armed.
Restoring to factory setting 왘 Press and hold buttons Œ and ‹ simultaneously for about 6 seconds un- til battery check lamp 5 (컄 page 106) flashes twice.
Unlocking driver’s door and fuel filler flap 왘 Press button Œ once.
앫 All turn signal lamps flash once. 앫 An acoustic signal sounds once
(if equipped and feature activated). For more information, see “Factory setting” (컄 page 108).
앫 The locking knob in the driver’s
door moves up.
앫 The anti-theft alarm system is dis-
armed.
Global unlocking 왘 Press button Œ twice.
앫 All turn signal lamps flash once. 앫 An acoustic signal sounds once
(if equipped and feature activated).
앫 The locking knobs in the doors
move up.
앫 The anti-theft alarm system is dis-
armed.
Controls in detail Locking and unlocking
If you can no longer lock or unlock the vehicle with the SmartKey, then either the batteries in the SmartKey are dis- charged, the SmartKey is malfunction- ing or the vehicle battery is drained. 앫 Check the batteries in the
SmartKey (컄 page 110) and re- place them if necessary (컄 page 431).
앫 Use the mechanical key to unlock the driver’s door (컄 page 426) and the trunk (컄 page 427).
앫 Use the mechanical key to lock the driver’s door (컄 page 426) and the trunk (컄 page 128).
앫 Have the vehicle battery and the
battery connections checked.
If the SmartKey is malfunctioning, con- tact an authorized Mercedes-Benz Center.
109
Controls in detail Locking and unlocking
Checking the batteries 왘 Press button ‹ or Œ.
Battery check lamp 5 (컄 page 106) comes on briefly to indicate that the SmartKey batteries are in order.
If battery check lamp 5 does not come on briefly during check, then the SmartKey batteries are discharged. Replace the batteries (컄 page 431). You can obtain the required batteries at any authorized Mercedes-Benz Center.
If the batteries are checked within sig- nal range of the vehicle, pressing the button ‹ or Œ will lock or unlock the vehicle accordingly.
110
Unlocking and opening the trunk You can unlock and open the trunk sepa- rately. A minimum height clearance of 5.90 ft (1.80 m) is required to open the trunk lid. 왘 Press and hold button Š until the trunk lid unlocks and begins to open.
The trunk lid swings open upwards au- tomatically. Always make sure there is sufficient overhead clearance. Vehicles with trunk opening/closing system*: To stop the opening proce- dure, press button Š. The trunk lid stops moving.
If the trunk does not open, it is still locked separately (컄 page 128).
The trunk can also be opened from its in- side in an emergency, see “Trunk emer- gency release” (컄 page 127).
If the vehicle was previously centrally locked, the trunk will lock automatical- ly after closing it. To confirm locking all turn signal lamps flash three times.
Loss of SmartKey or mechanical key If you lose a SmartKey or mechanical key, you should do the following: 왘 Have the SmartKey deactivated by an
authorized Mercedes-Benz Center.
왘 Report the loss of the SmartKey or the
mechanical key immediately to your car insurance company.
왘 If necessary, have the mechanical lock
replaced.
Your authorized Mercedes-Benz Center will be glad to supply you with a replace- ment.
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come with two SmartKeys with KEYLESS-GO, each with remote control and a removable mechanical key. The locking tabs for the mechanical key portion of the two Smart- Keys with KEYLESS-GO are a different col- or to help distinguish each SmartKey with KEYLESS-GO unit. The function of the SmartKey overrules the KEYLESS-GO function. The KEYLESS-GO function is integrated into the SmartKey. On these vehicles, the validity of the SmartKey with KEYLESS-GO is checked every time you pull an outside door handle. If the SmartKey with KEYLESS-GO is valid, your vehicle unlocks 앫 the doors 앫 the trunk 앫 the fuel filler flap
SmartKey with KEYLESS-GO 1 ‹ Lock button 2 Š Unlock button for the trunk 3 Mechanical key locking tab 4 Œ Unlock button 5 Battery check lamp 6  Panic button (컄 page 91)
When any outside door handle other than the driver’s outside door handle is pulled, the vehicle is centrally un- locked.
Controls in detail Locking and unlocking
Warning!
When leaving the vehicle, always take the SmartKey with KEYLESS-GO with you and lock the vehicle. Do not leave children unat- tended in the vehicle, or with access to an unlocked vehicle. It is possible for children to open a locked door from the inside, which could result in an accident and/or serious personal injury.
To prevent possible malfunction, avoid exposing the SmartKey with KEYLESS-GO to high levels of electro- magnetic radiation.
111
Controls in detail Locking and unlocking
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
interference, and
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 interfer-
ence, and
(2) this device must accept any inter-
(2) this device must accept any inter-
ference received, including interfer- ence that may cause undesired operation.
ference received, including interfer- ence that may cause undesired operation of the device.
Any unauthorized modification to this device could void the user’s authority to operate the equipment.
Any unauthorized modification to this device could void the user’s authority to operate the equipment.
You can also open and close the power windows and tilt/sliding sunroof* or tilt/sliding panel* using the SmartKey (컄 page 234).
When you unlock the vehicle, the elec- trohydraulic brake system is activated (컄 page 97).
Important notes on using KEYLESS-GO 앫 You can also use the SmartKey with KEYLESS-GO like a normal SmartKey (컄 page 106).
앫 You can combine KEYLESS-GO func-
tions with normal SmartKey functions (e.g. unlocking with KEYLESS-GO and locking with button ‹).
앫 Always carry the SmartKey with
KEYLESS-GO with you.
112
앫 Never store the SmartKey with
앫 If you have started the engine with the
KEYLESS-GO together with: 앫 Electronic items such as a cellular
phone or another SmartKey with KEYLESS-GO
앫 Metallic objects such as coins or
metal foil
Doing so could impair the function of the KEYLESS-GO system.
앫 To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be located outside the vehicle within ap- proximately 3 ft (1 m) of a door or the trunk lid.
앫 In order to start the engine with the
SmartKey with KEYLESS-GO: 앫 The SmartKey with KEYLESS-GO
must be located in the vehicle. 앫 All the doors must be closed. 앫 The brake pedal must be firmly de- pressed. Do not depress the accel- erator.
KEYLESS-GO start/stop button (컄 page 38), you can only turn it off again with this button, even if you have put the SmartKey in the starter switch in the meantime. This does not apply if, after starting, the selector lever is still in position P and then the SmartKey is inserted in the starter switch. The SmartKey will then have priority over the KEYLESS-GO function and the vehicle’s electrical system will operate according to the position of the SmartKey in the starter switch, even stopping the engine.
앫 If the SmartKey with KEYLESS-GO is positioned farther away from the vehi- cle, the system may no longer recog- nize the SmartKey with KEYLESS-GO. The vehicle cannot be locked or the en- gine started via the KEYLESS-GO sys- tem.
Controls in detail Locking and unlocking
앫 If the SmartKey with KEYLESS-GO is re- moved from the vehicle while the igni- tion is switched on (e.g. if passenger exits the vehicle with the SmartKey with KEYLESS-GO), the message Key not recognized will appear in the mul- tifunction 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).
앫 Remember that the engine can be started by anyone with a SmartKey with KEYLESS-GO that is left inside the vehicle. If you leave the SmartKey with KEYLESS-GO behind when exiting and locking the vehicle, the message Key still in vehicle will appear in the multifunction display.
113
Global unlocking 왘 Pull an outside door handle.
앫 All turn signal lamps flash once. 앫 An acoustic signal sounds once
(if equipped and feature activated).
앫 The locking knobs in the doors
move up.
앫 The anti-theft alarm system is dis-
armed.
The vehicle will lock again automatically and reactivate the anti-theft alarm system within approximately 40 seconds if: 앫 neither a door nor the trunk is opened 앫 the central locking switch is not acti-
vated
Global locking 왘 Press lock button on an outside door
handle (컄 page 64) or trunk lid (컄 page 117). 앫 All turn signal lamps flash three
times.
앫 An acoustic signal sounds three
times (if equipped and feature acti- vated).
앫 The locking knobs in the doors
move down.
앫 The anti-theft alarm system is
armed.
Controls in detail Locking and unlocking
Factory setting
Your vehicle may be equipped with an acoustic lock and unlock confirmation signal feature. If your vehicle is equipped with this feature and the fea- ture is activated, an acoustic signal will sound when the vehicle is locked or un- locked using the SmartKey with KEYLESS-GO. To determine whether or not your vehi- cle is equipped with this feature, con- tact an authorized Mercedes-Benz Center. If equipped and you wish to ac- tivate or deactivate the feature, or ad- just its signal volume, also contact an authorized Mercedes-Benz Center.
114
Selective setting If you frequently travel alone, you may wish to reprogram the SmartKey with KEYLESS-GO so when you pull the driver’s outside door handle, only the driver’s door and the fuel filler flap unlocks. 왘 Press and hold buttons Œ and ‹ simultaneously for about 5 seconds un- til battery check lamp 5 (컄 page 111) flashes twice. The SmartKey with KEYLESS-GO will then function as follows:
Unlocking driver’s door and fuel filler flap 왘 Pull the driver’s outside door handle. 앫 All turn signal lamps flash once. 앫 An acoustic signal sounds once
(if equipped and feature activated). For more information, see “Factory setting” (컄 page 114).
앫 The locking knob in the driver’s
door moves up.
앫 The anti-theft alarm system is dis-
armed.
Controls in detail Locking and unlocking
Global unlocking 왘 Pull any outside door handle other than
the driver’s outside door handle. 앫 All turn signal lamps flash once. 앫 An acoustic signal sounds once
(if equipped and feature activated).
앫 The locking knobs in the doors
move up.
앫 The anti-theft alarm system is dis-
armed.
115
Controls in detail Locking and unlocking
Global locking 왘 Press lock button on an outside door handle (컄 page 64) or lock button at trunk lid (컄 page 117). 앫 All turn signal lamps flash three
times.
앫 An acoustic signal sounds three
times (if equipped and feature acti- vated).
앫 The locking knobs in the doors
move down.
앫 The anti-theft alarm system is
armed.
Restoring to factory setting 왘 Press and hold buttons Œ and ‹ simultaneously for about 6 seconds un- til battery check lamp 5 (컄 page 111) flashes twice.
116
If you can no longer lock or unlock the vehicle with the SmartKey with KEYLESS-GO, then the batteries in the SmartKey are discharged, the SmartKey with KEYLESS-GO is mal- functioning or the vehicle battery is drained. 앫 Check the batteries in the
SmartKey with KEYLESS-GO (컄 page 116) and replace them if necessary (컄 page 431).
앫 Use the mechanical key to unlock the driver’s door (컄 page 426) and the trunk (컄 page 427).
앫 Use the mechanical key to lock the driver’s door (컄 page 426) and the trunk (컄 page 128).
앫 Have the vehicle battery checked by an authorized Mercedes-Benz Center.
If the SmartKey with KEYLESS-GO is malfunctioning, contact an authorized Mercedes-Benz Center.
Checking the batteries 왘 Press button ‹ or Œ.
Battery check lamp 5 (컄 page 111) comes on briefly to indicate that the SmartKey batteries are in order.
If battery check lamp 5 does not come on briefly during check, then the SmartKey batteries are discharged. Replace the batteries (컄 page 431). You can obtain the required batteries at any authorized Mercedes-Benz Center.
If the batteries are checked within sig- nal range of the vehicle, pressing the button ‹ or Œ will lock or unlock the vehicle accordingly.
Global locking using the lock button on the trunk lid
왘 Press lock button 1 on the trunk lid.
앫 All turn signal lamps flash three
To prevent a possible inadvertent lock- out, the trunk will open automatically if a SmartKey with KEYLESS-GO is recog- nized inside the vehicle or in the trunk.
times.
앫 An acoustic signal sounds three
times (if equipped and feature acti- vated). For more information, see “Factory setting” (컄 page 114).
앫 The locking knobs in the doors
move down.
앫 The anti-theft alarm system is
armed.
Controls in detail Locking and unlocking
If the vehicle was previously centrally locked with KEYLESS-GO, the trunk will lock automatically after closing it. To confirm locking all turn signal lamps flash three times.
You can also lock the vehicle using the lock button on an outside door handle (컄 page 64) or KEYLESS-GO locking/ closing switch (컄 page 126).
1 Lock button
117
Controls in detail Locking and unlocking
Unlocking and opening the trunk You can unlock and open the trunk sepa- rately. A minimum height clearance of 5.90 ft (1.80 m) is required to open the trunk lid. The handle is located in the rear license plate recess.
왘 Pull on the handle
or
왘 Press and hold button Š until the trunk lid unlocks and begins to open.
118
Loss of the SmartKey with KEYLESS-GO If you lose your SmartKey with KEYLESS-GO, you should do the following: 왘 Have the SmartKey with KEYLESS-GO
deactivated by an authorized Mercedes-Benz Center.
왘 Report the loss immediately to your car
insurance company.
왘 Have the mechanical lock replaced if
necessary.
Your authorized Mercedes-Benz Center will be glad to supply you with a replace- ment.
The trunk lid swings open upwards au- tomatically. Always make sure there is sufficient overhead clearance. Vehicles with trunk opening/closing system*: to stop the opening proce- dure, press button Š. The trunk lid stops moving.
If the trunk does not open, it is still locked separately (컄 page 128).
If the vehicle was previously centrally locked with KEYLESS-GO, the trunk will lock automatically after closing it. To confirm locking all turn signal lamps flash three times.
Opening the doors from the inside
You can open a locked door from the in- side. Open door only when conditions are safe to do so.
Front doors 왘 Pull on door handle 2 on the respec-
tive front door to open door. If door was locked, locking knob 1 will move up.
Rear doors 왘 Pull up locking knob 1 on the
respective rear door to unlock door.
왘 Pull on door handle 2 on the
respective rear door to open door.
1 Locking knob 2 Inside door handle
Controls in detail Locking and unlocking
If the vehicle has previously been locked with the SmartKey or KEYLESS-GO*, opening a door from the inside will trigger the anti-theft alarm system. To cancel the alarm, do one of the fol- lowing: 앫 Press button Œ or ‹ on the
SmartKey.
앫 Insert the SmartKey in the starter
switch.
In vehicles with KEYLESS-GO* 앫 Press the KEYLESS-GO* start/stop
button (컄 page 37). The SmartKey with KEYLESS-GO must be inside the vehicle. 앫 Pull an outside door handle.
The SmartKey with KEYLESS-GO must be within 3 ft (1 m) of the ve- hicle.
119
Controls in detail Locking and unlocking
Opening the trunk
Opening the trunk from the outside A minimum height clearance of 5.90 ft (1.80 m) is required to open the trunk lid. The handle is located above the rear li- cense plate recess.
In vehicles without KEYLESS-GO*: The ve- hicle must be unlocked. 왘 Pull on the handle.
The trunk opens.
120
Opening the trunk from the inside You can open the trunk from the inside if the vehicle is stationary. A minimum height clearance of 5.90 ft (1.80 m) is required to open the trunk lid. The switch is located on the driver’s door.
1 Remote trunk switch with indicator
lamp
The trunk lid swings open upwards au- tomatically. Always make sure there is sufficient overhead clearance.
If the trunk does not open, it is still locked separately (컄 page 128).
The trunk can also be opened using button Š on the SmartKey or SmartKey with KEYLESS-GO* or from its inside in an emergency, see “Trunk emergency release” (컄 page 127).
If the vehicle was previously centrally locked, the trunk will lock automatical- ly after closing it. To confirm locking all turn signal lamps flash three times.
1 Remote trunk switch with indicator
lamp (vehicles with trunk open- ing/closing system*)
왘 Pull remote trunk switch 1 until the
trunk begins to open. The trunk opens. The indicator lamp in the switch comes on and remains lit until the trunk is closed.
Controls in detail Locking and unlocking
Closing the trunk
Closing the trunk from the inside auto- matically* In vehicles with trunk opening/closing sys- tem* you can close the trunk from the in- side using the remote trunk switch. 왘 Press remote trunk switch
(컄 page 121) until the indicator lamp in the switch goes out and the trunk is closed.
To interrupt the closing procedure: 왘 Release the remote trunk switch.
You can also close the trunk by hand. 컄컄
The trunk lid swings open upwards au- tomatically. Always make sure there is sufficient overhead clearance. Vehicles with trunk opening/closing system*: To stop the opening proce- dure, press or pull remote trunk switch 1.
If the trunk does not open, it is still locked separately (컄 page 128).
The trunk can also be opened using button Š on the SmartKey or SmartKey with KEYLESS-GO* or from its inside in an emergency, see “Trunk lid emergency release” (컄 page 127).
121
Controls in detail Locking and unlocking
컄컄
Warning!
Warning!
Closing the trunk from the outside manually
Only drive with the trunk closed as, among other dangers such as blocked visibility, ex- haust fumes may enter the vehicle interior.
If the trunk lid comes into contact with an object while closing (e.g. luggage that has been piled too high), the closing procedure is stopped and the trunk reopens slightly.
1 Handle 2 Handles 왘 Lower trunk lid by pulling firmly on
handle 1 or handles 2.
왘 Close trunk with hands placed flat on
trunk lid.
Maintain sight of trunk area while operating the door mounted switch. Monitor the clos- ing procedure carefully to make sure that no one is in danger of being injured.
To interrupt the closing procedure, release the door mounted remote trunk switch.
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 remote trunk switch can be operated. Therefore, do not leave children unattended in the vehicle, or with access to an unlocked vehicle. Unsu- pervised use of vehicle equipment may cause an accident and/or serious personal injury.
122
i Do not place the SmartKey in the open trunk. You may lock yourself out. Vehicles with KEYLESS-GO*: To prevent a possible inadvertent lock- out, the trunk will open automatically if a SmartKey with KEYLESS-GO is recog- nized inside the vehicle or in the trunk.
If the vehicle was previously centrally
