Page 284 of 399
284 OperationVehicle careTo prevent scratches, never apply strong
force and use only a soft, non-scratchy
cloth when cleaning the sensor cover. Do
not attempt to wipe dirty sensors with a
dry cloth or sponge.Cleaning the Parktronic* system
sensors
1Parktronic* sensors
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo
with plenty of water.
When using a steam cleaner or power
washer, aim nozzle only briefly from a min-
imum distance of 4 in. (10 cm) at
sensors1.
To prevent scratches, never apply strong
force and use only a soft, non-scratchy
cloth when cleaning the sensor. Do not at-
tempt to wipe dirty sensors with a dry cloth
or sponge.Light alloy wheels
Mercedes-Benz approved Wheel Care
should be used for regular cleaning of the
light alloy wheels.
If possible, clean wheels once a week with
Mercedes-Benz approved Wheel Care, us-
ing a soft bristle brush and a strong spray
of water.
Follow the instructions on the container.
iRestart the engine after cleaning sen-
sor cover1.
iUse only acid-free cleaning materials.
Acid could lead to corrosion.
Page 287 of 399
287 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
Batteries
Jump starting
Towing the vehicle
Fuses
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 293 of 399
293 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
?
The yellow "CHECK ENGINE"
malfunction indicator lamp
comes on while driving.
There is a malfunction in:
The fuel injection system
The ignition system
The exhaust system
The fuel system
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode.
Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
codes. It is located in the front left
area of the footwell next to the park-
ing brake.
Your gas tank is empty.
After refuelling, start the engine three
or four times in succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.
<
The red seat belt warning lamp
blinks for a brief period after
starting the engine.
The warning lamp reminds you to fasten seat
belts.
Fasten your seat belt.
W
The yellow fuel tank reserve
warning lamp lights up while
driving.
The fuel level has gone below the reserve
mark.
Gas cap not closed tight.
Refuel at the next gas station
(page 259).
Close gas cap
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 300 of 399
300 Practical hintsWhat to do if …:
Engine oil level
Check level!
The engine oil level is too low.
Check the engine oil level
(page 262) and add oil as required.
:
Engine oil level
Reduce oil level!
You have added too much engine oil. There
is a risk of damaging the engine or the cat-
alytic converter.
Have oil siphoned. Observe all legal
requirements with respect to its dis-
posal.
Engine oil
Visit workshop!
The engine oil has dropped to a critical lev-
el.
Check the engine oil level
(page 262) and add oil as required.
If you must add engine oil frequently,
have the engine checked for possible
leaks.
There is water in the oil.
Have the oil checked.
Engine oil level
Visit workshop!
The measuring system is malfunctioning.
Have the measuring system checked
by an authorized Mercedes-Benz
Center.
Distronic
External interference
Reactivate!
The Distronic* is switched off and is tem-
porarily unavailable.
Try activating the Distronic* again
later.
Clean sensor!
see oper. Manual
The Distronic* is switched off because the
Distronic* cover in the radiator grille is
dirty.
Clean the Distronic* cover in the ra-
diator grille (
page 283).
Restart the vehicle.
Visit workshop!
The Distronic* is malfunctioning or the dis-
play is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Display
Possible cause
Suggested solution
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 303 of 399
303 Practical hints
What to do if …
G
Display defective
The instrument cluster display is malfunc-
tioning.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
G
Display defective
Visit workshop!
The displays for several systems have mal-
functioned. Some systems themselves may
also have malfunctioned.
Have the electronic systems
checked by an authorized
Mercedes-Benz Center.
L
Visit workshop!
One or more main functions of the Tele Aid
system are malfunctioning.
Have the Tele Aid system checked by
an authorized Mercedes-Benz Cen-
ter.
#
Malfunction
Electrical consumers
switched off
The consumer battery has insufficient volt-
age and can no longer supply the conve-
nience functions such as seat ventilation*.
The electrical consumers will come back
online as soon as on-board voltage is
sufficient.
#
Battery/Alternator
Stop vehicle!
The battery is malfunctioning.
The SBC brake system requires electrical
energy and therefore has only limited oper-
ation. Considerably greater brake pedal
force is required and the stopping distance
is increased.
Stop the vehicle as soon as it is safe
to do so. Adjust driving to be consis-
tent with reduced braking respon-
siveness.
Notify an authorized Mercedes-Benz
Center.
#
Undervoltage
Charge battery
The battery has insufficient voltage.
Start the engine (
page 43).
Display
Possible cause
Suggested solution
