Page 291 of 417
290 OperationVehicle careVehicle washingTo wash the car, use:
a car shampoo, which is recommended
by Mercedes-Benz
a soft sponge or a washing brush
plenty of water
Spray the car down thoroughly using
plenty of water.
Wash out the sponge and chamois fre-
quently.
Rinse off with clean water.
Dry the car well with a chamois.Power washer
!When washing the vehicle, fine and rig-
id particles in sponges or brushes
could scratch or otherwise damage the
paint. This applies to both, hand-wash
or automatic car wash. Mercedes-Benz
recommends you to have your vehicle
cleaned at an automatic car wash from
the start, preferably one without brush-
es, or to use plenty of water when
hand-washing your vehicle.
Do not wash the car in direct sunlight
and when the body surface is hot.
In the winter, remove salt residue
quickly and thoroughly.
!Do not use power washer to clean your
vehicle or the engine.
Page 302 of 417

301 Practical hints
What to do if ...
Problem
Possible cause
Suggested solutions
<
The red Airbrake warning
lamp comes on while driving
and you hear a warning
sound.
The Airbrake or the central locking system
is malfunctioning.
Notify an authorized Mercedes-Benz Center
immeditaly.
>
The red gearshift indicator
lamp comes on while you are
driving.
You are driving with the manual shift pro-
gram. The engine is in the overrevving
range.
Shift to the next higher gear. Otherwise the
fuel supply will be interrupted to prevent the
engine from overrevving.
A
The yellow reserve fuel warn-
ing lamp lights up while you
are driving.
The fuel level has fallen into the reserve
range.
Refuel at the nearest gas station
(page 240).
=
The engine oil temperature
symbol comes on in the
tachometer while you are
driving.
The engine oil has not yet reached its
operating temperature.
Warm up the engine and do not drive at full
power until the operating temperature has
been reached.
The symbol will go out as soon as the engine
oil has reached its operating temperature.
Page 325 of 417
324 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
.
Turn signal
Rear left
Back-up
lamp on!
The left rear turn signal lamp is
malfunctioning. A backup bulb
has been brought into use.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Rear right
Back-up
lamp on!
The right rear turn signal lamp
is malfunctioning. A backup
bulb has been brought into use.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Front left
The left front turn signal lamp is
malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Turn signal
Front right
The right front turn signal lamp
is malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Left turn signal
Mirror
The left turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.
Have the LEDs replaced as soon as possible.
Page 326 of 417
325 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
.
Marker lamp
Front left
The front left side marker lamp
is malfunctioning.
Replace the bulb as soon as possible.
Marker lamp
Front right
The front right side marker
lamp is malfunctioning.
Replace the bulb as soon as possible.
Marker lamp
Rear left
The rear left side marker lamp
is malfunctioning.
Replace the bulb as soon as possible.
Marker lamp
Rear right
The rear right side marker lamp
is malfunctioning.
Replace the bulb as soon as possible.
Right turn signal
Mirror
The right turn signal in the side
mirror is malfunctioning. This
message will only appear if all
light emitting diodes have
stopped working.
Have the LEDs replaced as soon as possible.
Page 327 of 417

326 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
.
Brake lamp
Left
Back-up
lamp on!
The left brake lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Brake lamp
Right
Back-up
lamp on!
The right brake lamp is mal-
functioning. This message will
only appear if a critical number
of LEDs have blown.
Visit an authorized Mercedes-Benz Center as soon as
possible.
3rd brake light
The high mounted brake lamp
is malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Brake light
Drive to
workshop!
Brake lamp illumination is de-
layed or lamp is permanently
on.
Visit an authorized Mercedes-Benz Center as soon as
possible.
License plate
lamp, L
The left license plate lamp is
malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
License plate
lamp, R
The right license plate lamp is
malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Page 329 of 417

328 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
.
Tail lamp
Left
Back-up
lamp on!
The left tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Tail lamp
Right
Back-up
lamp on!
The right tail lamp is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have blown.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Parking lamp
Front left
The left front parking lamp is
malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Parking lamp
Front right
The right front parking lamp is
malfunctioning.
Visit an authorized Mercedes-Benz Center as soon as
possible.
Light sensor
Drive to
workshop!
The light sensor is malfunction-
ing. The headlamps switch on
automatically.
In the control system, set lamp operation to manual
(page 130).
Switch on headlamps using the exterior lamp switch.
Visit an authorized Mercedes-Benz Center immediately.
Page 347 of 417

346 Practical hintsReplacing bulbsSafe vehicle operation depends on proper
exterior lighting and signaling. It is there-
fore essential that all bulbs and lamp as-
semblies are in good working order at all
times.
Correct headlamp adjustment is extremely
important. Have headlamps checked and
readjusted at regular intervals and when a
bulb has been replaced. See an authorized
Mercedes-Benz Center for headlamp ad-
justment.
iIf the headlamps are fogged up on the
inside as a result of high humidity, driv-
ing the vehicle a distance should clear
up the fogging.iSubstitute bulbs will be brought into
use when lamps malfunction. Observe
the messages in the multifunction dis-
play (
page 323).
!You must not change the bulbs or LEDs
yourself, as you could damage the vehi-
cle lighting systems.
Have blown bulbs or LEDs replaced by
an authorized Mercedes-Benz Center.iIf one of the following bulbs blows, an-
other bulb will adopt its function:
Rear turn signals
Brake lamps
Side lamps
Tail lamps
Page 352 of 417

351 Practical hints
Flat tire
7Tire valve
8Electric air pump switch
9Air hose with pressure gauge and vent
screw
aFiller hose
Unscrew the valve cap from tire
valve7.
Screw filler hosea onto tire valve7.
Insert electrical plug4 into vehicle
cigarette lighter socket.
Turn the SmartKey in the starter switch
to position1 (
page 40).
PressI on electric air pump switch8.
The electric air pump should now
switch on and inflate the tire.After five minutes, the pressure gauge
must display at least 26 psi (1.8 bar). The
air hose can become hot during inflation.
Please exercise appropriate caution.
If this tire inflation pressure is not at-
tained, turn off the electric air pump,
detach the filler hose from the tire
valve, and drive vehicle back and forth
very slowly approximately 30 ft (10 m).
This serves to better distribute the
TIREFIT sealant material inside the tire.
Unscrew the air pump’s air hose5
from flange6 of the TIREFIT
container.
Screw air hose5onto tire valve7.
Inflate the tire again.
Warning!
G
Observe safety instructions on air pump
label.
!Do not operate the electric air pump
longer than six minutes without inter-
ruption. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.