Page 282 of 399

282 OperationVehicle careEngine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from contact with
water and cleaning agents.
Corrosion protection, such as MB Anticor-
rosion Wax should be applied to the engine
compartment after every engine cleaning.
Before applying, all control linkage bush-
ings and joints should be lubricated. The
poly-V-belt and all pulleys should be pro-
tected from any wax.
Vehicle washing
Do not use hot water or wash your vehicle
in direct sunlight. Use only a mild car wash
detergent, such as Mercedes-Benz ap-
proved Car Shampoo.
Thoroughly spray the vehicle with a dif-
fused jet of water. Direct only a very weak
spray towards the ventilation intake. Use
plenty of water and rinse the sponge and
chamois frequently. Rinse with clear water and thoroughly wipe
dry with a chamois. Do not allow cleaning
agents to dry on the finish.
Due to the width of the vehicle, fold in out-
side mirrors prior to running the vehicle
through an automatic car wash to prevent
damage to the mirrors.
In the winter, thoroughly remove all traces
of road salt as soon as possible.
When washing the undercarriage, do not
forget to clean the inner sides of the
wheels.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 use only a soft, non-scratchy
cloth when cleaning the lenses. Do not at-
tempt to wipe dirty lenses 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.
Page 283 of 399

283 Operation
Vehicle care
Wiper blades
Clean the wiper blade inserts with a clean
cloth and detergent solution.Window cleaning
Use a window cleaning solution on all glass
surfaces. An automotive glass cleaner is
recommended.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.
iFor safety reasons, switch off wipers
and remove key from starter switch be-
fore cleaning the wiper blades. Other-
wise the wiper motor can suddenly turn
on and cause injury.!Fold the windshield wiper arms away
from the windshield in a vertical posi-
tion only. They could otherwise dam-
age the hood (
page 337).
Fold the windshield wiper arms back
onto the windshield before turning the
key in the starter switch.
iFor safety reasons, switch off wipers
and remove key from starter switch be-
fore cleaning the windshield. Other-
wise the wiper motor can suddenly turn
on and cause injury.!Fold the windshield wiper arms away
from the windshield in a vertical posi-
tion only. They could otherwise dam-
age the hood (
page 337).
Fold the windshield wiper arms back
onto the windshield before turning the
key in the starter switch.
Page 288 of 399

288 Practical hintsWhat to do if …
What to do if …Lamps in instrument clusterGeneral information:
If a bulb in the instrument cluster fails to
light up during the bulb self-check when turning the SmartKey in the starter switch
to position 2, have it checked and replaced
if necessary.Problem
Possible cause
Suggested solution
v
The yellow ESP warning lamp
lights up while driving.
The ESP is deactivated. Risk of accident!
Adapt your speed and driving to the prevail-
ing road conditions.
Turn the ESP back on (
page 77).
If the ESP cannot be turned back on, have
the system checked at an authorized
Mercedes-Benz Center as soon as possi-
ble.
v
The yellow ESP warning lamp
flashes while driving.
The ESP or traction control has come into op-
eration because of detected traction loss in
at least one tire. Distronic* is deactivated.
DISTRONIC* is switched off.
When driving off, apply as little throt-
tle as possible.
While driving, ease up on the acceler-
ator.
Adapt your speed and driving to the
prevailing road and weather condi-
tions.
Do not deactivate the ESP.
Exceptions: (
page 77).
Failure to follow these instructions in-
creases the risk of accidents.
Page 295 of 399

295 Practical hints
What to do if …
Messages in the display
The control system shows warning and
malfunction messages in the multifunction
display.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the malfunction memory menu in
the control system (
page 121) displays
both cleared and uncleared messages.
High-priority messages appear in the mul-
tifunction display with a red background.On the pages that follow, you will find a
compilation of all the messages that may
appear in the display.
Warning!
G
All messages contain important information
which should be taken note of and, where a
malfunction is indicated, addressed as soon
as possible at an authorized Mercedes-Benz
Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
Contact your nearest authorized
Mercedes-Benz Center.
iTurning the key in the starter switch to
position2, or pressing the KEY-
LESS-GO* start/stop button twice to
position2 causes all lamps as well as
the multifunction display to come on.
Ensure that they are all in working or-
der before starting your journey.
Page 301 of 399

301 Practical hints
What to do if …
P
Gear selector lever in P
You have turned off the engine with the
KEYLESS-GO* start/stop button* and
opened the driver’s door.
Place the selector lever in position P.
Cruise control
Visit workshop!
Cruise control or Distronic* is malfunction-
ing.
Have the cruise control or Distronic*
checked by an authorized
Mercedes-Benz Center.
1
Restraint system
malfunction
Visit workshop!
The system is malfunctioning.
Drive with added caution to the near-
est authorized Mercedes-Benz Cen-
ter.
@
Vehicle rising!
Your vehicle is adjusting to your level selec-
tion.
Level selec. canceled
The "Raised" level setting is canceled at ve-
hicle speeds of over 75 mph (120 km/h).
Reactivate the "Raised" level setting.
Display
Possible cause
Suggested solution
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the
SRS may not be activated when needed in
an accident, which could result in serious or
fatal injury, or it might deploy unexpectedly
and unnecessarily which could also result in
injury.
Page 309 of 399
309 Practical hints
What to do if …
Display
Possible cause
Suggested solution
F
Key
Check battery!
The batteries in the KEYLESS-GO*
key are discharged.
Change the batteries (
page 328).
Key
not recognized!
The KEYLESS-GO* key is not recog-
nized while the engine is running be-
cause
the card is not in the vehicle
there is strong radio-frequency
interference
Stop the vehicle as soon as it is safe to do
so.
Search for the card or continue to operate
the vehicle with the key.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started again
after the engine is stopped.
The KEYLESS-GO* key is momen-
tarily not recognized.
Change the position of the card in the vehi-
cle.
Operate the vehicle with the key if neces-
sary.
ì
Function
Not available!
This display appears if button ì
or í on the multifunction steer-
ing wheel is pressed and the vehicle
is not equipped with a telephone.
Page 310 of 399

310 Practical hintsWhat to do if …F
Key recognized
in vehicle!
A KEYLESS-GO* key left in the vehi-
cle was recognized while locking the
vehicle from the outside.
Take the key out of the vehicle.
Key
Visit workshop!
The KEYLESS-GO* system is mal-
functioning.
Visit an authorized Mercedes-Benz Center
as soon as possible.
Key
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 key in the starter switch.
This message is only a reminder.
Insert key in the starter switch.
_
Entry position
Do not drive!
Seat, mirrors and steering wheel
have not yet moved to their preset
driving positions.
Wait until the seat, mirrors and steering
wheel have moved to their driving positions.
The message disappears.
Except Canada:;Canada only:!
Release park. brake!
You are driving with the parking
brake set.
Release the parking brake (
page 45).
<
Visit workshop!
The seat belt system is malfunction-
ing.
Visit an authorized Mercedes-Benz Center
as soon as possible.
Ê
Trunk open!
This message will appear whenever
the trunk lid is open.
Close the trunk lid.
Display
Possible cause
Suggested solution
Page 313 of 399
313 Practical hints
What to do if …
Display
Possible cause
Suggested solution
A
Reserve fuel
The fuel level has dropped below the
reserve mark.
Refuel at the next gas station (
page 259).
Y
Hood open!
You are driving with the hood open.
Close the hood (
page 261).
I
Remove key
!
You have forgotten to remove the
key.
Remove the key 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.
.
Lamp sensor
Visit workshop!
The lamp sensor is malfunctioning.
The headlamps switch on automati-
cally.
In the control system, set lamp operation to
manual mode (
page 130).
Switch on headlamps using the exterior
lamp switch.
Low beam, left
The left low beam lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Center
as soon as possible.
Low beam, right
The right low beam lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz Center
as soon as possible.