Page 349 of 498

348 OperationVehicle care
Fold the wiper arms forward until they
snap into place.
Clean the wiper blade inserts with a
clean cloth and detergent solution.
Use a soft, clean cloth and a mild win-
dow cleaning solution on all outside
and inside glass surfaces.
An automotive glass cleaner is recom-
mended.Light alloy wheels
If possible, clean wheels once a week.
Use Mercedes-Benz approved Wheel
Care, a soft bristle brush and a strong
spray of water for cleaning the light al-
loy wheels.
!Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch or
pressing the KEYLESS-GO start/stop
button (vehicles with KEYLESS-GO*).
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
!To clean the window interior, do not
use a dry cloth, abrasives, solvents or
cleaners containing solvents. Do not
touch the inside of the front, rear or
side windows with hard objects such as
an ice scraper or ring. Doing so may
damage the windows.!Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch.
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.
!Only use acid-free cleaning materials.
Acid may cause corrosion or damage
the clear coat.
Page 352 of 498
351 Practical hints
What to do if …
Where will I find ...?
Unlocking/locking in an emergency
Opening/closing in an emergency
Resetting activated head restraints
Replacing SmartKey batteries
Replacing bulbs
Replacing wiper blades
Flat tire
Battery
Jump starting
Towing the vehicle
Fuses
Page 370 of 498

369 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
ESP
Display malfunction
Visit workshop
The ESP
® or the ESP
® display is mal-
functioning.
Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the
risk of an accident.
P
Gear selector lever
in Park
You have attempted to turn off the
engine with the KEYLESS-GO*
start/stop button with the gear
selector lever not inP. You have
opened the driver's door with the
gear selector lever not inP.
Place the gear selector lever in positionP.
P/N
Shift to
Neutral or Park
You have attempted to start the
engine with the KEYLESS-GO*
start/stop button while the gear se-
lector lever was in positionR orD.
Place the gear selector lever in positionP
orN. Make sure the brake pedal is depressed.
Low Battery
Conven. functions
temporarily
unavailable
The battery has insufficient voltage
and can no longer supply conve-
nience functions such as the rear
window defroster.
As soon as the on-board voltage is sufficient, the
consumers will switch on again.
Page 386 of 498
385 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Key
still in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey 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.
Do not
forget key
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no SmartKey
in the starter switch.
This message is only a reminder.
Insert SmartKey in the starter switch.
Take the SmartKey with
KEYLESS-GO* with you when leaving
the vehicle.
Remove key
You have forgotten to remove the
SmartKey.
Remove the SmartKey from the
starter switch.
Replace key
There is no additional code available for
SmartKey or SmartKey with
KEYLESS-GO*.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 387 of 498
386 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Key
Check battery
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Change the batteries (
page 408).
Key
not recognized
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because
the SmartKey with KEYLESS-GO* is
not in the vehicle
there is strong radio-frequency inter-
ference
Stop the vehicle as soon as it is safe
to do so.
Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
Key
not recognized
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey
in the vehicle.
Operate the vehicle with the
SmartKey in the starter switch if nec-
essary.
Page 391 of 498
390 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
.
Rear foglamp
left
The left rear fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Rear foglamp
right
The right rear fog lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Switch off lamps
Lamps have been turned on although the
SmartKey in the starter switch is in posi-
tion 0.
Switch off the headlights.
Taillamp, left
Substitute bulb on
The left tail lamp is malfunctioning. A sub-
stitute bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Taillamp, right
Substitute bulb on
The right tail lamp is malfunctioning. A
substitute bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 393 of 498
392 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
<
Seat belt system
Drive to workshop
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
9
Service memory full
See Operator’s Manual
The maintenance service system memory
cannot save any more data.
Have the service memory checked by
an authorized Mercedes-Benz Center.
K
Close
tilt/sliding sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the sliding portion of the
tilt/sliding sunroof open.
Close the tilt/sliding sunroof
(page 220).
J
Close
tilt/sliding sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilting portion of the
tilt/sliding sunroof open.
Close the tilt/sliding sunroof
(page 220).
Page 403 of 498
402 Practical hintsUnlocking/locking in an emergencyUnlocking the vehicle
If you are unable to unlock the vehicle with
the SmartKey, open the driver’s door and
the trunk using the mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in the direction of
the arrow and slide mechanical key2
out of the housing.Unlocking the driver’s door
1Unlocking
Insert the mechanical key into the driv-
er’s door lock until it stops.
Turn the mechanical key counterclock-
wise to position1.
The driver’s door is unlocked.
iUnlocking driver’s door and/or the
trunk with the mechanical key will trig-
ger the anti-theft alarm system. To can-
cel the alarm, insert the SmartKey or
the SmartKey with KEYLESS-GO* in the
starter switch.