Page 611 of 801

610 OperationWinter drivingBefore the onset of winter, have your
vehicle winterized at an authorized
Mercedes-Benz Center. This service
includes:
Check of anticorrosion and antifreeze
concentration.
Addition of cleaning concentrate to the
water of the windshield and headlamp
cleaning system. Add MB Windshield
Washer Concentrate “MB Summerfit”
to a premixed windshield washer sol-
vent/antifreeze which is formulated for
below freezing temperatures
(page 772).
Battery test. Battery capacity drops
with decreasing ambient temperature.
A well charged battery helps to make
sure that the engine can be started,
even at low ambient temperatures.
Tire change.
Winter tires
Always use winter tires at temperatures
below 45°F (7°C) and whenever wintry
road conditions prevail. Not all M+S rated
tires provide special winter performance.
Make sure the tires you use show the
mountain/snowflake.marking on the
tire sidewall. These tires meet specific
snow traction performance requirements
of the Rubber Manufacturers Association
(RMA) and the Rubber Association of Can-
ada (RAC) and have been designed specif-
ically for use in snow conditions. Use of
winter tires is the only way to achieve the
maximum effectiveness of the ABS, EBP,
ESP
® and 4MATIC in winter operation.
For safe handling, make sure that all
mounted winter tires are of the same make
and have the same tread design.Always observe the speed rating of the
winter tires installed on your vehicle. If the
maximum speed for which your tires are
rated is below the speed rating of your
vehicle, you must place a notice to this
effect where it will be seen by the driver.
Such notices are available from your tire
dealer or from any authorized
Mercedes-Benz Center.
Warning!
G
Winter tires with a tread depth of less than 1/6in (4 mm) must be replaced. They are no
longer suitable for winter operation.
Page 620 of 801

619 Operation
Vehicle care
Headlamps, tail lamps, side markers,
turn signal lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car
Shampoo, with plenty of water.Cleaning the DISTRONIC Plus*/
PRE-SAFE
® Brake* system sensors
(USA only)
The sensors are integrated in the front
bumpers and cannot be seen from the out-
side.
1Sensor cover
2Bumper area near sensors
Switch off the ignition (
page 370).
Use a mild car wash detergent, such as
Mercedes-Benz approved Car
Shampoo, with plenty of water and a
non-scratching cloth to clean sensor
cover1.
Clean a wide area of the bumpers sur-
rounding the sensor2.
Cleaning the Parktronic* system
sensors
1Parktronic system* sensors in front
bumper
!
Only use window cleaning solutions that are
suitable for plastic lamp lenses. Window clean-
ing solutions which are not suitable may damage
the plastic lamp lenses of the headlamps. There-
fore, do not use abrasives, solvents or cleaners
that contain solvents.
Never apply strong force and only use a soft,
non-scratching cloth when cleaning the lenses.
Do not attempt to wipe dirty lenses with a dry
cloth or sponge.
Otherwise you may scratch or damage the lens
surface.
!
To prevent scratches or damage, never
apply strong force and only use a soft,
non-scratching cloth when cleaning the sensor
cover and/or bumper area near sensors. Do not
attempt to wipe dirty sensors and/or bumper
with a dry cloth or sponge.
Page 644 of 801
643 Practical hints
What to do if …?
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may ap-
pear in the malfunction display.
For your convenience the messages are di-
vided into two sections:
Text messages (
page 644)
Symbol messages (
page 660)
Warning!
G
All categories of messages contain impor-
tant information which should be taken note
of and, where a malfunction is indicated, ad-
dressed as soon as possible at an autho-
rized 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.i
Switching on the ignition causes all instru-
ment cluster lamps (except high beam headlamp
indicator lamp and turn signal indicator lamps
unless activated) as well as the multifunction dis-
play to come on. Make sure the lamps and multi-
function display are in working order before
starting your journey.
Page 688 of 801

687 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Check
Center Brake Lamp
The high mounted brake lamp is malfunc-
tioning. This message will only appear if a
critical number of light emitting diodes have
stopped working.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check Left
Cornering Light
The left-hand corner-illuminating lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 714).
Check Right
Cornering Light
The right-hand corner-illuminating lamp is
malfunctioning.
Replace the bulb as soon as possible
(page 714).
Check
Left Low Beam
The left low beam lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Low Beam
The right low beam lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Active Headlamps
Inoperative
The active headlamps are malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 689 of 801

688 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Auto Lamp Function
Inoperative
The light sensor is malfunctioning. Daytime
driving lamps are switched on.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
To switch off the headlamps (U.S. vehicles only):
Switch off daytime running lamps in the in-
strument cluster control system
(page 306).
Turn the exterior lamp switch to position0.
Check
Rear Left
Turn Signal
T h e l e f t r e a r t u r n s i g n a l l a m p i s m a l f u n c t i o n -
ing. A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Rear Right
Turn Signal
The right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Left Mirror
Turn Signal
The turn signal in the left exterior rear view
mirror is malfunctioning. This message will
only appear if a critical number of light emit-
ting diodes have stopped working.
Have the LEDs replaced as soon as possible.
Page 690 of 801

689 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Check
Right Mirror
Turn Signal
The turn signal in the right exterior rear view
mirror is malfunctioning. This message will
only appear if a critical number of light emit-
ting diodes have stopped working.
Have the LEDs replaced as soon as possible.
Check
Front Left
Turn Signal
The left front turn signal lamp is malfunc-
tioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Right
Turn Signal
The right front turn signal lamp is malfunc-
tioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Left High Beam
The left high beam lamp is malfunctioning.
Replace the bulb as soon as possible
(page 714).
Check
Right High Beam
The right high beam lamp is malfunctioning.
Replace the bulb as soon as possible
(page 714).
Check Left
License Plate Lamp
The left license plate lamp is malfunction-
ing.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check Right
License Plate Lamp
The right license plate lamp is malfunction-
ing.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Please
Switch Off Lights
You are getting out of the vehicle and the
lights are still switched on.
Switch off the headlamps (
page 399).
Page 691 of 801

690 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Turn Lights Off
or
Remove Key
The exterior lamp switch is set to * and
you have forgotten to take out the
SmartKey. The parking lamps remain
switched on.
Switch off the headlamps (
page 399).
or
Remove the SmartKey from the starter
switch.
Check
Left Fog Lamp
The left front fog lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Fog Lamp
The right front fog lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Rear Left
Fog Lamp
The left rear fog lamp is malfunctioning.
A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Left
Parking Lamp
The left front parking lamp is malfunction-
ing. A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Right
Parking Lamp
The right front parking lamp is malfunction-
ing. A substitute bulb is being used.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Left Reverse Lamp
The left backup lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Reverse Lamp
The right backup lamp is malfunctioning.
Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 715 of 801
714 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. Contact an autho-
rized Mercedes-Benz Center for headlamp
adjustment.
i
If the headlamps or front fog lamps are
fogged up on the inside as a result of high humid-
ity, driving the vehicle a distance with the lights
on should clear up the fogging.
i
Substitute bulbs will be brought into use
when the following lamps malfunction:
Brake lamps
Rear fog lamps
Front parking lamps
Tail lamps
Turn signal lamps
Read and observe messages in the multifunction
display (
page 642).