Panic Button
To activate press and hold button (1) for at least one second. The
alarm will last for approximately 3 minut es in form of blinking exterior
lamps, and an additional horn will sound intermittently
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 har mful 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 t he 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).
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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 mo ve 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 car 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 bei ng opened from the inside will unlock, and the alarm will
come 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 unl ock, turn mechanical key to position 2 or pull up lock
buttons.
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Central locking switch
1. Locking
2. Unlocking
The central locking switch is located in the center cons ole. The doors can only be locked with the central locking
switch, if the front doors are closed. If the car was previously locked with the remote control or key, the doors and
trunk cannot be unlocked with the central locking switch. If the car 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 car 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.
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.
Emergency Unlocking in Case of Accident
The doors unlock automatically a short time after an a ccident (this is intended to aid rescue and exit).
However, the electronic key must still be in the steering lock.
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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
separately. Leave only the electronic main key less its mechanical key with the
vehicle.
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, refe r 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.
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Charge Indicator Lamp
Should the charge indicator lamp fail to come on prior to starting when the electronic key is in steering lock position 2
or should it fail to go out after starting or during operati on, this indicates a fault which must be repaired at an
authorized Mercedes-Benz dealer immediately.
If the charge indicator lamp comes on while the engine is ru nning, this may indicate that the poly-V-belt has broken.
Should this condition occur, the poly-V-bel t must be replaced before continuing to operate the vehicle. Otherwise, the
engine will overheat due to an inoperative water pump which may result in damage to the engine.
Do not continue to drive the vehicle with the charge indicator lamp illuminated. Doing so could result in serious engine
damage that is not covered by the Mercedes-Benz Limited Warranty.
Low Engine Oil Level Warning Lamp
With the electronic key in steering lock position 2, the o il level warning lamp comes on. It should go out immediately
when the engine is running.
If the warning lamp does not go out after starting the engi ne, or comes on with the engine running and at operating
temperature, the engine oil level has dropped to approximately the minimum mark on the dipstick.
When this occurs, the warning lamp will first come on intermittently and then stay on if the oil level drops further.
If no oil leaks are noted, continue to drive to the nearest service station where the engine oil should be topped to the
"full" mark on the dipstick with an approved oil.
The low engine oil level warning light should not be ignored. Extended driving with the light illuminated could result in
serious engine damage that is not covered by the Mercedes -Benz Limited Warranty. In addition to the warning lamp,
the engine oil level should be periodically checked with the di pstick (or via the odometer display - Model 280 only), for
example during a fuel stop, or before a long trip (see Index)
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Engine Oil Consumption
Engine oil consumption checks should only be made after the break-in period. During the break-in period, higher oil
consumption may be noticed and is normal. Frequent driving at high engine speeds results in increased consumption.
Fuel Reserve and Fuel Cap Placement Warning Lamp
With the electronic key in steering lock position 2, the fuel reserve warning lamp comes on. It should go out
immediately when the engine is running.
If the warning lamp does not go out after starting the engine, or if it comes on while driving, it indicates that the fuel
level is down to the reserve quantity of approximately 2.1 gal (8 liters).
The warning lamp blinks when the fuel c ap is not closed, or a fuel system leak has been detected. Retighten cap and
see if lamp goes out.
If the warning lamp continues to blink after closing the fuel cap correctly, hav e the fuel system checked at your
authorized Mercedes-Benz dealer as soon as possible.
Leaving the engine running and the fuel cap open can cause the "Check Engine" lamp to illuminate).
Tachometer
Red marking on tachometer: Excessive engine speed. Avoid th is engine speed, as it may result in serious engine
damage that is not covered by the Mercedes-Benz Limited Warranty. For engine protection, the fuel supply is
interrupted if the engine is operated within the red marking.
Seat Belt Warning Lamp
With the electronic key in steering lock position 2, the warning lamp comes on, and a warning sounds for a short time
if the drivers seat belt is not fastened. After starting the engine, the warning lamp blinks for a brief period to remind
the driver and passengers to fasten seat belts.
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Emission Control
Certain systems of the engine serve to keep the toxic components of the exhaust gases within
permissible limits required by law. These syst ems, of course, will function properly only when
maintained strictly according to factory spec ifications. Any adjustments on the engine should,
therefore, be carried out only by qualified Merc edes-Benz authorized dealer technicians. Engine
adjustments should not be altered in any way. Moreover, the specified service jobs must be carried
out regularly according to Mercedes-Benz servicing requirements. For details refer to the Service
Booklet.
Warning !
Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause unconsciousness and lead to death.
Do not run the engine in confined areas (such as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are entering the vehicle while driving, have the cause
determined and corrected immediately. If you must drive under these conditions, drive only
with at least one window fully open.
On-Board Diagnostic System
The Sequential Multiport Fuel Injection (SFI) c ontrol module monitors emission control components
that either provide input signals to or receive output signals from the control module. Malfunctions
resulting from interruptions or failure of any of these components are indicated by the "CHECK
ENGINE" malfunction indicator lamp in the instrument cluster and are simultaneously stored in the
diagnostic module. If the "CHECK ENGINE" malfunc tion indicator lamp comes on, have the system
checked at your authorized Mercedes-Benz deal er as soon as possible. The control module
switches off the "CHECK ENGINE" indicator lamp if the condition, causing the lamp to come on, no
longer exists. An on-board diagnostic connector is located in the passenger compartment near to the
parking brake pedal, allowing the accurate identificat ion of system malfunctions through the readout
of diagnostic trouble codes.
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Winter Driving
Have your car winterized at your authorized Mercedes-Benz dealer before the onset of winter.
• Change the engine oil if the engine contains an oil which is not approved for winter operation.
For viscosity (SAE/CCMC class) and filling quantity, see Capacities: Fuels, Coolants,
Lubricants etc. in Index.
• Check engine coolant anticorr osion/antifreeze concentration.
• Additive for the windshield washer and headlamp cleani ng system: Add MB Concentrate "S" to a premixed
windshield washer solvent/antifreeze which is form ulated for below freezing temperatures (see Index).
• Test battery: Battery capacity drops with dec reasing ambient temperature. A well charged
battery helps to ensure that the engine can be started, even at low ambient temperatures.
• Tires: We recommend M+S rated radial-ply tires on all four wheels for the winter season. Observe
permissible maximum speed for M+S rated radial-ply tires and the legal speed limit.
Note:
In winter operation, the maximum effect iveness of the acceleration slip regulation or of the electronic traction system
can only be achieved with M+S rated radial-ply tires and/or snow chains recommended by Mercedes-Benz. Snow
chains maximize performance.
Snow Chains
Use only snow chains that are tested and recommended by Mercedes-Benz. Your authorized Mercedes-Benz dealer
will be glad to advise you on this subject. Chains should only be used on the rear wheels. Follow the manufacturer's
mounting instructions. Snow chains should only be driven on snow covered roads at speeds not to exceed 30 mph
(50 km/h). Remove chains as soon as possible when driving on roads without snow. For tips on driving on slippery
winter roads, refer to Index. Vehicles with Acceleration Slip Regulation (ASR) or Electronic Stability Program (ESP):
When driving with snow chai ns, press the ASR or ESP control switch, refer to Index.
Model C 43 AMG
Important!
Use of snow chains is permissible only on winter tire size 215/45 R 17 H M+S. Refer to "Rims - Tires" in section
"Technical Data" (see Index).
Travelling Abroad
Abroad, there is a widely-spread Mercedes-Benz service network at your disposal. If you plan to travel into areas
which are not listed in the index of your dealer directory, you should request pertinent information from your
authorized Mercedes-Benz dealer.
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