Mercedes CLASS C, C 43 AMG, C 230 KOMPRESSOR, C 280 owners Manual

Drive Sensibly - Save Fuel

Fuel consumption, to a great extent, depends on driving habits and operating conditions. To save fuel you should:

• keep tires at the recommended inflation pressures,

• remove unnecessary loads,

• remove roof rack when not in use,

• allow engine to warm up under low load use,

• avoid frequent acceleration and deceleration,

• have all maintenance work performed at regular intervals by an authorized Mercedes-Benz dealer.

Fuel consumption is also increased by driving in cold weather, in stop-and-go traffic, on short trips and in hilly country.

MERCEDES-BENZ
24 HOUR
ROADSIDE ASSISTANCE
1-800-FOR MERCEDES
1-0800-367-6372 USA.
1-800-387-0100 Canada

What You Should Know
at the Gas Station

• Fuel:
To prevent fuel vapors from escaping into open air, fully insert filler nozzle unit. Only fill fuel tank until the filler nozzle
unit cuts out - do not overfill. Leaving the engine running and the fuel cap open can cause the "Check Engine" lamp to
illuminate. Use premium unleaded gasoline: Posted Octane Index 91 (Average of 96 RON/86 MON).
Fuel tank capacity approx. 16.4 US gal (62.0 I).
This includes approx. 2.1 US gal (8.0 I) reserve.

Warning !

Gasoline is highly flammable and poisonous, it burns violently and can cause seriou s injury. Whenever you are
around gasoline, avoid inhaling fumes and skin contact, extinguish all smoking materials. Never allow spar ks, flame
or smoking materials near gasoline!

• Engine Oil:
Engine oil level check, see Index.
Fill quantity between upper and lower dipstick marking level: 2.1 US qt (2.0 I).
Recommended engine oils, see Index.

• Spark Plugs:
Approved spark plugs, refer to "Technical Data".

• Coolant:
For normal replenishing, use water (potable water quality).
For further information (e.g. anticorrosion/antifreeze), refer to Index.

• Bulbs:
High beam: H1 (55 W),
low beam: H7 (55 W),
low beam: Xenon (optional)
fog lamps: H1 (55 W),
turn signal lamps, parking and standing lamps, front: 2357 NA (28.5/8.3 W/30/2.2 cp),
stop lamps: 21 W/32 cp,
backup lamps: 21 W/32 cp,
turn signal lamps, rear: 21 W/32 cp,
tail, parking, side marker and standing lamp: 5 W/4 cp,
tail and parking lamp, passenger side: 21/4 W,
tail, parking arid rear fog lamp, driver's side: 21/4 W,
license plate lamps: 5 W.

• Tire Pressure:
For tire pressure, refer to tire pressure label inside the fuel filler flap.

• Air Conditioner:
R-134a refrigerant and special PAG lubricant, refer to "Technical Data" (also see Index).

Instruments and Controls

For more detailed descriptions see Index.
For adjustments of air outlets, refer to Automatic
Climate Control (see Index).

1. Side air outlet, adjustable

2. Air volume control for side air outlet

3. Exterior lamp switch

4. Parking brake release

5. Hood lock release

6. Parking brake pedal

7. Steering wheel adjustment lever

8. Combination switch

9. Cruise control switch

10. Horn, airbag

11. Instrument cluster

12. Steering lock with ignition/starter switch

13. Center air outlets, adjustable

14. Air volume control for center air outlets

15. Glove box (illuminated with electronic

key in steering lock position 1 or 2)

16. Left front seat heater switch

17. ASR or ESP control switch

18. Switch for rear seat head restraints

19. Hazard warning flasher switch

20. Central locking switch,

21. Switch for Tow-Away Protection

Indicator lamp for antitheft alarm system

22. Right front seat heater switch

23. Climate control (C 230)

Automatic climate control (C 280,
C43 AMG)
Rear window defroster switch

24. Audio system

25. Open storage compartment

26. Ashtray with lighter

27. Storage/eyeglasses compartment

28. Power window switches, front doors

29. Power window safety switch, rear doors

30. Airbag off indicator lamp

31. Power window switches, rear doors

32. Trunk lid release switch

33. Mirror adjustment switch

Instrument Cluster

1. Coolant temperature gauge. See Index

2. Fuel gauge with reserve and fuel cap

placement warning lamp (yellow). See Index

3. Outside temperature indicator. See Index

4. Left turn signal indicator lamp (green)

5. ASR or ESP warning lamp (yellow). See

Index

6. Speedometer

7. Trip odometer, See Index

8. Main odometer, or FSS indicator. See
Index

9. Right turn signal indicator lamp (green)

10. Tachometer. See Index

11. Clock. See Index

12. Push buttons for intensity of instrument

lamps. See Index

13. Push button for resetting trip odometer.
See Index

14. Push buttons for setting clock. See Index

Indicator Lamp Symbols

Function Indicator Lamp

High beam

Warning Lamps

(should go out with the engine running unless)

ASR or ESP.
Adjust driving to road condition. See Index

Fluid level for windshield and headlamp
washer system low. See Index

Coolant level low. See Index

Engine oil level low. See Index

Brake pads worn down. See Index
Brake fluid low (except Canada).

Parking brake engaged. See Index
Brake fluid low (Canada only).

Parking brake engaged.
See Index

Battery not being charged properly.
See Index

Exterior lamp failure. See Index

BAS malfunction. See Index
ASR malfunction. See Index

BAS malfunction. See Index
ESP malfunction. See Index

ABS malfunction. See Index

Fasten seat belts. See Index

SRS malfunction. See Index
Telescoping steering column not locked.

See Index
Engine malfunction indicator lamp. If the

lamp comes on when the engine is running,
it indicates a malfunction of the fuel
management system or emission control
system, or the fuel cap is not closed tight. In
all cases, we recommend that you have the
malfunction checked as soon as possible.
See Index

Additional Function Indicator Lamps in
the Instrument Cluster

FSS indicator (distance).
See Index

FSS indicator (days).
See Index

Function Indicator Lamp on
the Center Console

Passenger Airbag automatically switched
off. See Index

Catalytic Converter

Your Mercedes-Benz is equipped with monolithic type catalytic converters, an important element in
conjunction with the oxygen sensors to achieve substantial control of the pollutants in the exh aust
emissions. Keep your vehicle in proper operating condition by following our recommended
maintenance instructions as outlined in your Service Booklet.

Caution!
To prevent damage to the catalytic converters, use only premium unleaded gasoline in this vehicle.
Any noticeable irregularities in engine operation should be repaired promptly. Otherwise, excessive
unburned fuel may reach the catalytic converter causing it to overheat, which could start a fire.

Warning!
As with any vehicle, do not idle, park or operate this vehicle in areas where combustible
materials such as grass, hay or leaves can come into contact with the hot exhaust system,
as these materials could be ignited and cause a vehicle fire.

Starting and Turning Off the Engine
Before Starting

Ensure that parking brake is engaged and that selector lever is in position "P" or "N". Turn electroni c
key in steering lock to position 2. The charge indicator lamp should come on.

Starting
Do not depress accelerator. Briefly turn electronic key in steering lock clockwise to the stop an d
release. The starter will engage until the engine is running. If engine will not run, and the starting
procedure stops, turn electronic key completely to the left and repeat starting the engine. After
several unsuccessful attempts, have the system checked at the nearest authorized Mercedes-Be nz
dealer.

Important!

Due to the installed starter nonrepeat feature, the electronic key must be turned completely to the
left before attempting to start the engine again. The battery charge indicator lamp should go out as
soon as the engine has started. In areas where temperatures frequently drop below -4°F (-20°C) we
recommend that an engine block heater be installed. Your authorized Mercedes-Benz dealer will
advise you on this subject.

Turning Off

Turn the electronic key in the steering lock to position 0 to stop the engine.
The electronic key can only be removed with your foot off the brake pedal and the selector lever in
position "P".

Driving Instructions

Warning !
If you feel a sudden significant vibration or ride disturbance, or you suspect that possible damage
to your vehicle has occurred, you should turn on the hazard flashers, carefully slow down, and drive with
caution to an area which is a safe distance from the roadway.
Inspect the tires and under the vehicle for possible damage. If the vehicle or tires appear unsafe, have
it towed to the nearest Mercedes-Benz or tire dealer for repairs.

Power Assistance
Warning !
When the engine is not running, the brake and steering systems are without po wer assistance.
Under these circumstances, a much greater effort is necessary to stop or steer the vehicle.

Brakes
Warning !
After driving in heavy rain for some time without applying the brakes or through water deep enough to
wet brake components, the first braking action may be somewhat reduced and increased pedal
pressure may be necessary. Be sure to maintain a safe distance from vehicles in front.
Resting your foot on the brake pedal will cause excessive and premature wear of the brake pads.
It can also result in the brakes overheating thereby significantly reducing their effectiveness.
It may not be possible to stop the car in sufficient time to avoid an accident.

The condition of the parking brake system is checked each time the vehicle is in the shop for the required service.

If the parking brake is released and the brake warning lamp in the instrument cluster stays o n, the bra ke fluid level in
the reservoir is too low. Brake pad wear or a leak in the system may be the reason for low brake fluid in the reservoir.
Have the brake system inspected at an authorized Mercedes-Benz dealer immediately.
All checks and maintenance work on the brake system should be carried out by an authorized Mercedes-Benz dealer.
Install only brake pads and brake fluid recommended by Mercedes-Benz.

Warning !
If other than recommended brake pads are installed, or other than recommended brake fluid is used, the
braking properties of the vehicle can be degraded to an extent that safe braking is substantially impaired.
This could result in an accident.

Caution !

When driving down long and steep grades, relieve the load on the brakes by shifting into a lower gear. This helps prevent
overheating of the brakes and reduces brake pad wear. After hard braking, it is advisable to drive on for some time, rather
than
immediately parking, so the air stream will cool down the brakes faster.

Tires

Tread wear indicators (TWI) are required by law.
These indicators are located in six places on the
tread circumference and become visible at a depth of
approximately1/16 in (1.5 mm), at which point the
tire is considered worn and should be replaced.
The tread wear indicator appears as a solid band across
the tread.

Warning !
Do not allow your tires to wear down too far. As tread depth approaches
properties on a wet road are sharply reduced. Depending upon the weather and/or road surface (con ditions),
the tire traction varies widely.

1

/16 in (1.5 mm), the adhesion

Specified tire pressures must be maintained. This applies particularly if the tires are subjected to
high loads (e.g. high speeds, heavy loads, high ambient temperatures).

Warning !
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may lose control
of the car. Continued driving with a flat tire or driving at high speed with a flat tire will cause excessive heat
build-up and possibly a fire.

Aquaplaning

Depending on the depth of the water layer on the road, aquaplaning may occur, even at low speeds and wi th new
tires.
Reduce vehicle speed, avoid track grooves in the road and apply brakes cautiously in the rain.

Tire Traction

The safe speed on a wet, snow covered or icy road is always lower than on a dry road.
You should pay particular attention to the condition of the road whenever the outside temperatures are close to the
freezing point.

Warning !
If ice has formed on the road, tire traction will be substantially reduced. Under such weather conditions,
drive, steer and brake with extreme caution.

We recommend M + S radial- ply tires for the winter season for all four wheels to insure normal balanced handling
characteristics. On packed snow, t hey can reduce your stopping distance as compared with summer tires.
Stopping distance, however, is still considerably greater than when the road is not snow or ice covered.

Tire Speed Rating
Model C 43 AMG only: This vehicle is factory equipped with "Z"-rated tires. All other models: These vehicles are factory

equipped with "H"-rated tires, which have a European speed rating of 130 mph (210 km/h). An electronic speed limiter
prevents your vehicle from exceeding the speed rating. Despite the tire rating, local speed limits should be obeyed. Use
prudent driving speeds appropriate to prevailing conditions.

Warning !
Even when permitted by law, never operate a vehicle at speeds greater than the maximum speed rating of the
tires. Exceeding the maximum speed for which tires are rated can lead to sudden tire failure causing loss of
vehicle control and resulting in personal injury and possible death.

Parking
Warning !

To reduce the risk of personal injury as a result of vehicle movement, before turning off the engine
and leaving the vehicle always:

1. Keep right foot on brake pedal.

2. Firmly depress parking brake pedal.

3. Move the selector lever to position "P".

4. Slowly release brake pedal.

5. Turn front wheels towards the road curb.

6. Turn the key to steering lock position 0 and remove.

7. Take the electronic key and lock vehicle when leaving.
Important !

It is advisable to set the parking brake whenever parking or leaving the vehicle. In addition, move selector lever
to position "P". When parking on hills, always set the parking brake.

Winter Driving Instructions

The most important rule for slippery or icy roads is to drive sensibly and to avoid abrupt acceleration, braking and steering
maneuvers. Do not use the cruise control system under such conditions.
When the vehicle is in danger of skidding, move selector lever to position "N". Try to keep the vehicle under control by
corrective steering action. Road salts and chemicals can adversely affect braking efficiency.
Increased pedal force may become necessary to produce the normal brake effect. We therefore recommend depressing
the brake pedal periodically when travelling at length on salt-strewn roads. This can bring road salt impaired
braking efficiency back to normal. A prerequisite is, however, that this is done without endangering other d r ivers on the
road. If the vehicle is parked after being driven on salt treated roads, the braking efficiency should be tested as soon as
possible after driving is resumed while observing the safety rules in the previous paragraph.

Warning !
If the vehicle becomes stuck in snow, make sure that snow is kept clear of the exhaust pipe and from
around the vehicle with engine running. Otherwise, deadly carbon monoxide (CO) gases may enter
vehicle interior resulting in unconsciousness and death. To assure sufficient fresh air ventilation, o pen
a window slightly on the side of the car that is out of the wind.

Deep Water
Caution !

Do riot drive through flooded areas or water of unknown depth. If you must drive through deep water, drive slowly to
prevent water from entering the engine compartment or being ingested by the air intake, possibly causing damage to
electrical components or wiring, to engine or transmission that is not covered by the Mercedes-Benz Limited Warranty.

Passenger Compartment
Warning !

Always fasten items being carried as securely as possible. In an accident, during hard braking or sudden
maneuvers, loose items will be thrown around inside the vehicle, and cause injury to vehicle occupants unless
the items are securely fastened in the vehicle. The trunk is the preferred place to car ry objects.

Climate Control

1. Air volume control for center air outlets, turn wheel

up to open.

2. Air volume control for side air outlet.
To open side air outlet:
Turn wheel to position

3. Center air outlets, adjustable

4. Side air outlet, adjustable

5. Windshield air outlet

6. Temperature selector, left side passenger compartment

7. Temperature selector, right side passenger compartment

8. Air volume control switch

9. Air distribution control switch

10. Rear window defroster

11. Economy mode

12. Air recirculation,

Residual engine heat utilization.

(Model C 230 Kompressor)

The system is always at operational readiness, except when manually switched off. The climate control only
operates with the engine running. To quickly cool down the passenger compartment, turn temperature
selectors fully downward. Turn temperature selector to maintain desired temperature. The climate control removes
considerable moisture from the air during operation in the cooling mode. It is normal for water to drip on the ground
through ducts in the underbody.

Basic Setting - Heater

Select temperature for each side of the passenger compartment.
Select air volume with control

prevent windows from fogging up. Set air distribution control switch to
position shown above.
Turn side air outlets (4) to the detent position.
Open center air outlets as desired.

Basic Setting - Air Conditioner

Select temperature for each side of the passenger compartment.
Select air volume with control
the air conditioner. Set air distribution control switch to position
Open center air outlets
Open left and right side air outlets

Special Settings (use only for short duration)
Defrosting

Set temperature selectors and switches for air volume and air distribution to position

.

switch, set at least to position 2 to

switch, at least to position 1 to start

.

.

Close center air outlets.
Turn wheels (2) to position

Adjust side air outlets upward.

to open left and right side air outlets (4).

Defogging Windows

Windows fogged up on inside

Switch off economy mode Indicator lamp goes out.
Switch off air recirculation
Set air distribution control switch to position

Increase air volume with control switch.
Close center air outlets.

Turn wheels (2) to position
air outlets (4). Adjust side air outlets upward.

. Indicator lamp goes out.

.

to open left and right side

Windshield fogged up on outside

Switch on windshield wipers. Set air distribution control switch to position

or

Economy

The function of this setting corresponds to the air conditioning mode. However, because the air
conditioning compressor will not engage (fuel savings), it is not possible to air condition in this setting.

Press
Press

Climate Control - OFF

To switch the climate control off, set air volume control switch to position 0.
The fresh air supply to the vehicle interior is shut off. While driving, use this setting only
temporarily, otherwise the windshield could fog up.

button to activate.
button once again to return to previous setting.

Rear Window Defroster

Turn electronic key in steering lock to position 2.
To select, press
To cancel, press

button.

button again.

Note:
Heavy accumulation of snow and ice should be removed before activating the defroster.
The rear window defroster uses a large amount of power. To keep the battery drain to a minimum,
turn off the defroster as soon as the window is clear.
The defroster is automatically turned off after a maximum of 12 minutes of operation.
If several power consumers are turned on simultaneously, or the battery is only partially charged, it is possible
that the defroster will automatically turn itself off. When this happens, the indicator lamp inside the switch starts
blinking. As soon as the battery has sufficient voltage, the defroster automatically turns itself back on.

Air Recirculation
This mode can be selected to temporarily reduce the entry of annoying odours or dust from vehicle's interior.
Outside air is not supplied to the car's interior.
To select, press button.
To cancel, press
The system will automatically switch from recirculated air to fresh air

• after approx. 5 minutes at outside temperatures below approx. 40°F (5°C),

• after approx. 30 minutes, at outside temperatures above approx. 40°F (5°C),

• after approx. 5 minutes, if button
At hight ouside temperatures, the system automatically engages the recirculated air mode for approx.
30 minutes, thereby increasing the cooling capacity performance. Press button again to extend the recirculated
air mode.

Residual Engine Heat Utilization
With the engine switched off, it is possible to continue heating the interior for a short while.
Air volume is controlled automatically
To select:
Turn electronic key in steering lock to position 1 or 0 or remove . Close air outlet in rear passenger compartment.
Press
This function selection will not activate if the battery charge level is insufficient.
To cancel:
Press button. Indicator lamp in the button goes out
The system will automatically shut off

• if you turn key in steering lock to position 2,

• after approx. 30 minutes,

• if the battery voltage drops.

Dust Filter
Nearly all dust particles and pollen are filtered out before outside air enters the passenger compartment through the
air distribution system.

Note:
Keep the air intake grille in front of windshield free of snow and debris.

Important !

This vehicle is equipped with an air conditioner system that uses R-134a (HFC : hydrofluorocarbon)
as a refrigerant. Repairs should always be performed by a qualified technician, and refrigerant
should be collected in a recovery system for recycling.

button. Indicator lamp in the button lights up.

button again.

is pressed.

Automatic Climate Control
(Models C 280 and C43 AMG)

The system is always at operational readiness, except when manually
switched off. The automatic climate control only operates with the engine
running. The temperature selector should be left at the desired temperature
setting.
The temperature selected is reached as quickly as possible. The system
will not heat or cool any quicker by setting a higher or lower temperature.

1. Air volume control for center air outlet,
turn wheel up to open

2. Air volume control for side air outlet.
To open air outlets:

Turn wheel to position

3. Center air outlets, adjustable

4. Side air outlets, adjustable

5. Display and Controls

The automatic climate control removes considerable moisture from the air during operation in the cooling mode.
It is normal for water to drip on the ground through ducts in the underbody.

Important !
This vehicle is equipped with an air conditioner system that uses HFC-134a (HFC hydrofluorocarbon) as a refrigerant.
Repairs should always be performed by a qualified technician, and refrigerant should be collected in a recovery
system for recycling.

Basic Setting - Automatic Mode

Press button for automatic mode.
Simultaneously press both

and button for temperature setting of 72°F.

Display and Controls
Press to activate, indicator lamp is on while activated.

Automatic mode
Raise temperature
Lower temperature
Defrost

Rear window defroster

Air recirculation
Air distribution, manual
Economy mode
Air volume, manual

Residual engine heat
utilization

Air volume and distribution are controlled
automatically. This setting can be used all year
around.

Economy

The function of this setting corresponds to the
automatic mode. However, because the air
conditioning compressor will not engage (fuel
savings), it is not possible to air condition in this
setting.

Press button to activate.
Press

setting.

button once again to return to previous

Special Settings
(use only for short duration)
Defogging Windows

Switch off
Press . button.
Press button repeatedly until
air is directed upward.

Turn wheels (2) to position
to open left and right air outlets (4).
Adjust air outlets upward.

Defrosting
Turn wheels (2) to position to
open left and right air outlets (4).
Adjust air outlets upward.
Press button. Maximum heat­ed and automatically controlled
amount of air is directed to the
windshield and side windows.

Press button once again to

return to previous setting.

button.

Rear Window Defroster
Turn key in steering lock to position 2.
To select, press button.
To cancel, press button again.
Note:
Heavy accumulation of snow and
ice should be removed before
activating the defroster.
The rear window defroster uses a
large amount of power. To keep
the battery drain to a minimum, turn
off the defroster as soon
as the window is clear.
The defroster is automatically turned
off after a maximum of
12 minutes of operation.
If several power consumers are
turned on simultaneously, or the
battery is only partially charged, it
is possible that the defroster will
automatically turn itself off. When
this happens, the indicator lamp
inside the switch starts blinking.
As soon as the battery has
sufficient voltage, the
defroster automatically turns
itself back on.

Air Distribution

Press
the requested symbol is displayed.

Air Volume

Press - or + side of rocker switch
speed is attained.

A choice of 7 blower speeds is
available. To switch the
automatic climate control off,
press - side of rocker switch

The fresh air supply to the car
interior is shut off.
While driving, use this setting only
temporarily, otherwise the
windshield could fog up.
To switch the automatic climate
control on again, press

button repeatedly until

until the requested blower

until symbol OFF is displayed.

or + side of

Air Recirculation
This mode can be selected to prevent annoying odours or dust from entering the car's interior.
Outside air is not supplied to the car's interior.
To select, press button.
To cancel, press
The system will automatically switch from recirculated air to fresh air

• after approx. 5 minutes at outside temperatures below approx. 40°F (5°C),

• after approx. 30 minutes, at outside temperatures above approx. 40°F (5°C),

• after approx. 5 minutes, if button
Notes:
If the windows should fog up from the inside, switch from recirculated air back to fresh air.
At high outside temperatures, the system automatically engages the recirculated air mode thereby
increasing the cooling capacity performance, switching to partially fresh air within 20 minutes.

Dust Filter
Nearly all dust particles and pollen are filtered out before outside air enters the
passenger compartment through the air distribution system.
Notes:
Do not obstruct the air flow by placing objects on the air flowthrough exhaust slots below the rear
window.
Also keep the air intake grille in front of windshield free of snow and debris.

Residual Engine Heat Utilization
With the engine switched off, it is possible to continue heating the interior for a short while.
Air volume and distribution are controlled automatically
To select:
Turn electronic key in steering lock to position 1 or 0 or remove electronic key.
Press
This function selection will not activate if the battery charge level is insufficient.
To cancel:
Press button.
The system will automatically shut off

• if you turn electronic key in steering lock to position 2,

• after approx. 30 minutes,

• if the battery voltage drops.

button.

button again.

is pressed.

Car Keys

Included with your vehicle are:

• 2 electronic main keys with integrated radio frequency and infrared
remote controls plus slide out and removable mechanical key.

• 1 electronic reserve key without remote control functions, plus
removable mechanical key.

Warning !
When leaving the vehicle always remove the electronic key from the steering lock, and

Lock your vehicle. Do not leave children unattended in the vehicle, or with access to an
unlocked vehicle. Unsupervised use of vehicle equipment may cause serious personal injury.

Electronic main key with integrated radio frequency and infrared remote control, plus
slide out and removable mechanical key. The remote control (1) operates all locks on the car.
The mechanical key (2) works only in the driver's door, trunk, and storage compartment locks.

The mechanical key (2) can be removed by sliding it out of the remote control. To do so, move
lock (3) in direction of arrow and slide the mechanical key (2) in direction of arrow (5).
In the case of using the mechanical key for lock operations, it can be extended outward. To do so,
move lock (3) in direction of arrow, slide the mechanical key (2) in direction of arrow (4) until it locks in
place. The remote control transmitter is located in the electronic main key. The infrared receivers are
located in the front door handles.

Note:
Remove the mechanical key from the electronic main key when using valet parking service. To prevent
access to trunk or storage compartments lock them separately.

Electronic reserve key without remote control functions,
plus removable mechanical key.

The electronic reserve key (1) works only in the steering lock.
The mechanical key (2) works only in the driver's door, trunk, and
storage compartment locks. To use the mechanical key (2),
remove it from its electronic reserve key (1).

Note:
We recommend that you carry the electronic reserve key plus mechanical key with you and keep it in a
safe place (e.g. your wallet) so that it is always handy. Never leave the electronic reserve key in the vehicle.

Obtaining Replacement Keys

Your vehicle is equipped with a theft deterrent locking system requiring a special key manufacturing p ro ce ss.
For security reasons, replacement keys can only be obtained from your authorized Mercedes-Benz dealer.

Start Lock-Out
Important !

Removing the electronic key from the steering lock activates the start lock-out. The engine cannot be started.
Inserting the electronic key in the steering lock deactivates the start lock-out. The engine cannot be started. Inserting
the electronic key in the steering lock deactivates the start lock-out.

Note:
In case the engine cannot be started, the system is not operational. Contact an authorized Mercedes-Benz dealer or
call 1-800-FOR-MERCedes.

Central Locking System
Radio Frequency and Infrared Remote Control

The electronic main key has an integrated radio and infrared remote control. Due to the extended operatio nal range
of
the remote control, it could be possible to unintentionally lock or unlock the vehicle by pressing the transmit button.
A command received by the central locking system is acknowledged by the function control lamp blinking once. The
vehicle doors, trunk and fuel filler flap can be centrally locked and unlocked via remote control. Opening and closing
the windows and sliding/pop-up roof can only be done with the infrared portion of the remote control. Aim transmitter
eye (5) at a receiver (6 or 7) press and press transmit button. With vehicle centrally locked, the trunk can also be
opened
by using the remote control. If the electronic key is inserted in steering lock, the vehicle cannot be locked or unlocked
with the remote control.

Transmit button

1.

Locking
Unlocking
Opening trunk (if not key locked)

PANIC button
Release button for mechanical key
Lamp for battery check and function control
Transmitter eye
Infrared receiver in driver's door handle

2.

3.

4.

5.

6.

Locking and Unlocking

Unlocking:
Press transmit button . All turn signal lamps blink once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of unlocking methods (see below):
Selective unlocking mode:
Press transmit button
Press transmit button twice to unlock doors, fuel filler flap, and trunk.
Global unlocking mode:
Press transmit button once to unlock doors, fuel filler flap, and trunk.

Notes:
If the trunk was previously locked separately, it will remain locked (see Index). The presently active
unlocking mode (selective or global) can only be determined by unlocking the vehicle with the
remote control (see below for changing mode). The vehicle is automatically locked again, if within 40
seconds of unlocking with the remote control, neither door or trunk is opened, th e electronic key is
not inserted in the steering lock, or the central locking switch is not activated.

Locking:
Press transmit button
locked

Note:
If the vehicle cannot be locked or unlocked by pressing the transmit button, then it may be necessary
to change the batteries in the transmitter (if ok, battery check lamp in transmitter will light briefly
when
transmitting) or to synchronize the system, see Remote Control in Index.

once to unlock driver's door and fuel filler flap.

once. All turn signal lamps blink three times to indicate that the vehicle is

Choosing Global or Selective Mode on Remote Control
Press and hold transmit buttons and simultaneously for five seconds to reprogram the
remote control. Battery check lamp will blink two times indicating the completed mode change.

Opening the Trunk

A minimum height clearance of 5.9 ft ( 1.8 m) is required to open the trunk lid.
Press transmit button

Important !

Do not place remote control in trunk since trunk is locked again when closing the lid.
Note:

If the trunk was previously locked separately, it will remain locked (see Index).

Opening and Closing Windows and Sliding/Pop-Up Roof from Outside

Aim transmitter eye (5) of remote control at door receivers (6 or 7).
To open:

Continue to press transmit button
The windows and sliding/pop-up roof begin to open after approx. 1 second. To interrupt opening
procedure, release button.
To close:

Continue to press transmit button
The windows and sliding/pop-up roof begin to close after approx. 1 second. To interrupt closing

procedure, release button.

Warning !
Never operate the windows or sliding/pop-up roof if there is the possibility of anyone being
harmed by the opening or closing procedure.
In case the procedure causes potential danger, the procedure can be immediately halted by

releasing the remote control button. To reverse direction of movement press
or

Note:
If the windows and sliding/ pop-up roof cannot be operated automatically by pressing the transmit
button of the remote control then it may be necessary to change the batteries in the transmitter
(if ok, battery check lamp in transmitter will light briefly when transmitting), or to synchronize the
electronic main key, see Synchronizing remote Control in Index.

for closing.

until trunk lid is open.

after unlocking car

after locking car

for opening

Panic Button
To activate press and hold button (1) for at least one second.

The alarm will last for approximately 3 minutes in form of blinking
exterior lamps, and an alarm will sound
To deactivate press button (1) again, or insert electronic key in
steering lock.

Note:
For operation in the USA only: This devise 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.

Mechanical Keys

The entire vehicle may be locked or unlocked by using either the mechanical key in driver's door or trunk lock, or
central locking switch located in center console. The central locking system also locks or unlocks the fuel filler flap.

Note:
If the fuel filler flap cannot be opened, refer to Fuel Filler Flap, Manual Release (see Index).

Doors

1. Opening - pull handle

2. Unlocking

3. Locking

4. Individual door from inside:

• Push lock button down to lock.

• Pull lock button up to unlock.

When you lock the car, all door lock buttons should move down. If any one stays up, the respective
door is not properly closed. You should then unlock the car, open and reclose this door, and lock the
vehicle again.
Each individual door can be locked with door lock button - the driver's door can only be locked when
it is closed. If the car has previously been locked from the outside, only the door being opened from
the inside will unlock, and the alarm will corne on. The remaining doors, the trunk lid and fuel filler
flap remain locked.

Notes:
In case of a malfunction in the central locking system the doors can be locked and unlocked
individually. To lock, turn mechanical key to position 3 or push down lock buttons. To unlock, turn
mechanical key to position 2 or pull up lock buttons.

Central locking switch

1. Locking

2. Unlocking

The central locking switch is located in the center console. The doors can only be locked with the central locki ng
switch, if the front doors are closed. If the car was previously locked with the remote control or mechanical key, the
doors and trunk cannot be unlocked with the central locking switch. If the vehicle was previously locked with the
central locking switch, while in the selective remote control mode, only the door opened from the inside is unlocked. If
the vehicle was previously locked with the central locking switch, while in the global remote control mode, the
complete vehicle is unlocked when a front door is opened from the inside.

Note
The fuel filter flap cannot be locked or unlocked with the central locking switch.

Automatic Central Locking

The central locking switch also operates the automatic central locking.
To activate:
With electronic key in steering lock position 2 hold upper portion of switch (1) for a minimum of 5 seconds.
To deactivate:
With electronic key in steering lock position 2 hold lower portion of switch (2) for a minimum of 5 seconds.
With the automatic central locking system activated, the doors and trunk are locked at vehicle speeds of approx. 9
mph (15 km/h) or more. The fuel filler flap remains unlocked.

Notes:
If doors are unlocked with the central locking switch after activating the automatic central locking, and neither door is
opened, then the doors remain unlocked even at vehicle speeds of approx. 9 mph (15 km/h) or more. Opening a door
from the inside at speeds of approx. 9 mph (15 km/h) or less with the automatic central locking activated, the door will
again be automatically locked at speeds of approx. 9 mph (15 km/h) or more.

Important

When towing the vehicle, or with the vehicle on a dynamometer test stand, please, note the following:
With the automatic central locking activated and the electronic key in steering lock position 2, the vehicle doors
lock if the left front wheel as well as right rear wheel are turning at vehicle speeds of approx. 9 mph (15 km/h) or
more. to prevent the vehicle door locks from locking, deactivate the automatic central locking.

Emergency Unlocking in Case of Accident
The doors unlock automatically a short time after an accident (this is intended to aid rescue and exit).
However, the electronic key must still be in the steering lock.

Trunk

0. Neutral position - push to open

1. Unlocking

2. Locking (detent)

3. Separate locking of trunk - remove mechanical key in this position.

When the trunk is separately locked, it remains locked when centrally unlocking
the vehicle. To deny any unauthorized person access to the trunk, lock it

Notes:
In case of a malfunction in the central locking system the trunk can be locked and unlocked individually. To lock, turn
mechanical key to position 2 or 3. To unlock and open the trunk lid, turn mechanical key to position 1, hold and push
to open. If the fuel filler flap cannot be opened, refer to Fuel Filler Flap, Manual Release (see Index).

Important !
Do not place mechanical key inside trunk, since trunk is locked again when closing the
lid. Lower trunk lid using handle (4) and close it with hands placed flat on trunk lid.

separately. Leave only the electronic main key less its mechanical key with the
vehicle.

Power Windows and Sliding/Pop-Up Roof

1. Opening

2. Interrupting

3. Closing

When locking doors or trunk, turn mechanical key in door lock or trunk lock to position 3 and hold.
The windows and the sliding/pop-up roof begin to close automatically after approximately 1 second.
To interrupt the closing procedure, turn mechanical key to position 2. When unlocking doors or trunk,
turn mechanical key in door lock or trunk lock to position 1 and hold. The windows and the
sliding/pop-up roof begin to open automatically after approximately 1 second. To interrupt the opening
procedure, turn mechanical key to position 2.

Warning !
Never operate the windows or sliding/pop-up roof if there is the possibility of anyone being

harmed by the procedure. In case the procedure causes potential danger, the procedure can
be immediately reversed by turning the mechanical key to the reversed operational direction:

• for opening position (1)

• for closing position (3).

Note:
If the opening/closing procedure is interrupted, it can only be continued by first turning the mechanical
key to the interrupting position (2) and then again to the opening/ closing position (1 or 3) and hold.

Antitheft Alarm System

1. Indicator lamp in switch located in center console

The antitheft alarm is automatically armed or disarmed with the remote
control or any of your vehicle's mechanical keys by locking or unlocking the driver's door or the trunk.
A blinking lamp (1) indicates that the alarm is armed.

Operation

Once the alarm system has been armed, the exterior vehicle lamps will flash and the horn will sound
intermittently when someone:

• opens a door,

• opens the trunk,

• opens the hood,

• attempts to raise the vehicle.

The alarm will last approximately 21/2 minutes in the form of blinking exterior lamps. At the same time an alarm will
sound for 30 seconds.
The alarm will stay on even if the activating element (a door, for example) is immediately closed.

Note:
We recommend that you carry the electronic reserve key with mechanical key with you and keep it in a safe place
(e.g. your wallet) so that it is always handy. Never leave the electronic reserve key in the vehicle.

Tow-Away Protection

1. Press to switch off.

2. Indicator lamp

The switch is located in the center console.

Once the alarm system has been armed, the exterior vehicle lamps will flash and an alarm will sound when someone
attempts to raise the vehicle. The alarm will last approximately 21/2 minutes in the form of flashing exterior lamps.
At the same time an alarm will sound for 30 seconds. The alarm will stay on even if the vehicle is immediately
lowered.
To prevent triggering the alarm, switch off the tow-away protection before towing the vehicle, or when parking on a
surface subject to movement, such as a ferry or auto train.

To do so, turn electronic key in steering lock to position 1 or 0, or remove electronic key from steering lock. Press
tow-away protection switch (1). The indicator lamp (2) illuminates briefly. Exit vehicle, and lock vehicle with
mechanical key or remote control.
The tow-away protection remains switched off until the vehicle is locked again with mechanical key or remote cont rol.