Page 271 of 394

271 Operation
Vehicle care
Ornamental moldings
For regular cleaning and care of very dirty
chrome-plated parts, use a chrome clean-
er.
Headlamps, tail lamps, turn signal
lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the lenses. Do not at-
tempt to wipe dirty lenses with a dry cloth
or sponge.Cleaning the Distronic* system sensor
cover
1Distronic* system sensor cover
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water to clean sensor
cover1.To prevent scratches, never apply strong
force and only use a soft, non-scratchy
cloth when cleaning the sensor cover. Do
not attempt to wipe dirty sensors with a
dry cloth or sponge.
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with KEY-
LESS-GO* is in close proximity, i.e.
within approx. 3 ft. (approx. 1 m), the
vehicle could be inadvertently locked
or unlocked.
iRestart the engine after cleaning sen-
sor cover1.
Page 275 of 394
275 Practical hints
What to do if …?
Where will I find...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses
Page 277 of 394

277 Practical hints
What to do if …?
Problem
Possible cause
Suggested solution
-
The yellow ABS malfunction indi-
cator lamp comes on while driv-
ing.
The ABS has detected a malfunction and has
switched off. The BAS and the ESP are also
switched off (see messages in display).
The brake system is still functioning normally
but without the ABS available.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of an accident.
The charging voltage has fallen below
10 volts and the ABS has switched off.
When the voltage is above this value
again, the ABS is operational again.
If necessary, have the generator and
battery checked.
l
The red DTR indicator lamp lights
up while driving.
You are too close to the vehicle in front of you
to maintain selected speed.
Apply the brakes immediately to in-
crease the following distance.
l
The red DTR indicator lamp
comes on while driving and you
hear a warning sound.
You are gaining too rapidly on the vehicle
ahead of you.
The distance warning system has recog-
nized a stationary obstacle on your prob-
able line of travel.
Apply the brakes immediately.
Carefully observe the traffic situation.
You may need to brake or maneuver
to avoid hitting an obstacle.
Page 284 of 394
284 Practical hintsWhat to do if …?Display
Possible cause
Suggested solution
ABS
Defective!
Visit workshop!
The ABS has detected a malfunction and
has switched off. The ESP and the BAS are
also deactivated.
The brake system is still functioning nor-
mally but without the ABS available.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of accident.
Display defective!
Visit workshop!
ABS or the ABS display is malfunctioning.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of accident.
Page 285 of 394

285 Practical hints
What to do if …?
Display
Possible cause
Suggested solution
ABS
Anti-lock
braking system
not working!
The charging voltage has fallen below
10 volts and the ABS has switched off.
The brake system is still functioning nor-
mally but without the ABS available.
When the voltage is above this value
again, the ABS is operational again.
Continue driving with added caution.
Wheels will lock during hard braking,
reducing steering capability.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Failure to follow these instructions in-
creases the risk of accident.
BAS
not available
See operator’s manual
The charging voltage has fallen below
10 volts and the BAS has switched off.
The brake system is still functioning nor-
mally but without the BAS available.
When the voltage is above this value
again, the BAS is operational again.
Have the system checked at an autho-
rized Mercedes-Benz Center if you see
the warning message for a longer peri-
od of time.
Failure to follow these instructions in-
creases the risk of accident.
Page 288 of 394

288 Practical hintsWhat to do if …?Display
Possible cause
Suggested solution
F
Key
Check battery!
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Change the batteries (
page 312).
Key
not recognized!
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running be-
cause
the key is not in the vehicle
there is strong radio-frequency inter-
ference
S t o p t h e v e h i c l e a s s o o n a s i t i s s a f e t o
do so.
Search for the key.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the key in the
vehicle.
Operate the vehicle with the key in the
starter switch if necessary.
Key recognized
in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the key out of the vehicle.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 306 of 394

306 Practical hintsWhere will I find...?3Arrow
4Minispare wheel
5Vehicle tool kit storage well casing
6Vehicle tool kit
Wheel wrench
Vehicle jackVehicle jackThe vehicle jack is stored in the space un-
derneath the trunk floor together with the
vehicle tool kit in the vehicle tool kit stor-
age well casing.
Remove the vehicle jack from its com-
partment.
Push the crank handle up.
iArrow3 on vehicle tool kit storage well
casing5 must point in the direction of
travel. Otherwise you cannot place the
storage well casing on top and secure
the Minispare wheel with retaining
screw 1 (
page 305).
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on a level surface. Make sure that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.
Page 307 of 394
307 Practical hints
Where will I find...?
Turn the crank handle clockwise until it
engages (operational position).
Before storing the vehicle jack in its com-
partment:
It should be fully collapsed
The handle must be folded in (storage
position)
Minispare wheel
The Minispare wheel is located in the com-
partment underneath the trunk floor.
1Vehicle tool kit
Wheel wrench
Jack
2Arrow
3Minispare wheel
4Vehicle tool kit storage well casingRemoving the Minispare wheel
Lift trunk floor cover and engage trunk
floor handle in upper edge of trunk.
Loosen the retaining screw
(page 305) in the middle of storage
well casing. Remove the storage well
casing.
Remove vehicle tool kit storage well
casing4.
Remove Minispare wheel3.