Page 328 of 481

327 Operation
Winter driving
Winter driving
Before 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 Concentrate
“S” to a premixed windshield washer
solvent/antifreeze which is formulated
for below freezing temperatures
(page 440).
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, 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 under
1/6in
(4 mm) must be replaced. They are no
longer suitable for winter operation.
Warning!
G
If you use your spare tire when winter tires
are fitted on the other wheels, be aware that
the difference in tire characteristics may
very well impair turning stability and that
overall driving stability may be reduced.
Adapt your driving style accordingly.
Have the spare tire replaced with a winter
tire at the nearest authorized
Mercedes-Benz Center.
Page 329 of 481

328 OperationWinter drivingBlock heater (Canada only)
The engine is equipped with a block
heater.
The electrical cable may be installed at an
authorized Mercedes-Benz Center.Snow chains
Snow chains should only be driven on
snow-covered roads at speeds not to
exceed 30 mph (50 km/h). Remove chains
as soon as possible when driving on roads
without snow.Please observe the following guidelines
when using snow chains:
Use of snow chains is not permissible
with all wheel/tire combinations.
Snow chains should only be used on
the rear wheels. Follow the manufac-
turer’s mounting instructions.
Only use snow chains that are
approved by Mercedes-Benz. Your
authorized Mercedes-Benz Center will
be glad to advise you on this subject.
Use of snow chains may be prohibited
depending on location. Always check
local and state laws before installing
snow chains.
iWhen driving with snow chains, you
may wish to deactivate the ESP
®
(
page 82) before setting the vehicle
in motion. This will improve the
vehicle’s traction.
!Even on vehicles with all-wheel-drive
use snow chains on rear tires only.
Some tire sizes do not leave adequate
clearance for snow chains. To help
avoid serious damage to your vehicle or
tires, use of snow chains is not permis-
sible with the following tire sizes:
245/45 R18 100V XL (Extra Load)
M+S.on 8
1/2 x 18 rims
245/45 R18 96H M+S.on
81/2x 18 rims
245/45 R18 100Y XL (Extra Load)
on 8
1/2 x 18 rims
245/45 R18 96Y on 8
1/2 x 18 rims
265/40 R18 101Y XL (Extra Load)
265/40 R18 97Y
245/40 ZR19 98Y XL (Extra Load)
245/40 ZR19
275/35 ZR19 100Y XL (Extra Load)
275/35 ZR19
Page 341 of 481

340 Practical hintsWhat to do if …?Lamps in instrument cluster
General information:If any of the following lamps in the instru-
ment cluster fails to come on during the
bulb self-check when switching on theignition, have the respective bulb checked
and replaced if necessary.Problem
Possible cause
Suggested solution
-
The yellow Antilock Brake
System (ABS) indicator lamp
comes on while driving.
The ABS has detected a malfunction and
has switched off. The BAS and the ESP
® are
also switched off (see messages in multi-
function display).
The brake system is still functioning nor-
mally but without the ABS available.
If the ABS control unit is malfunctioning,
other systems such as Parktronic*,
Distronic*, and the automatic transmission
may also be malfunctioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Read and observe messages in the mul-
tifunction display (
page 353).
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Failure to follow these instructions increas-
es the risk of an accident.
The charging voltage has fallen below
10 volts and the ABS has switched off.
The battery may not be charged sufficiently.
Switch off electrical consumers that are
currently not needed, e.g. seat heat-
ing*.
If necessary, have the generator
(alternator) and battery checked.
When the voltage is above this value again,
the ABS is operational again.
Page 345 of 481

344 Practical hintsWhat to do if …?Problem
Possible cause
Suggested solution
l
Only vehicles with Distronic*:
The red distance warning lamp
comes on while driving.
You are too close to the vehicle in front of
you to maintain selected speed.
Apply the brakes immediately to in-
crease the following distance.
l
Only vehicles with Distronic*:
The red distance warning lamp
comes on while driving and you
hear a warning sound.
You are gaining too rapidly on the vehi-
cle ahead of you.
The distance warning system has recog-
nized a stationary obstacle on your
probable line of travel.
Apply the brakes immediately.
Carefully observe the traffic situation.
You may need to brake or maneuver to
avoid hitting an obstacle.
v
The yellow ESP
® warning lamp
flashes while driving.
The ESP
® or traction control has come into
operation because of detected traction loss
in at least one tire.
Distronic* is deactivated.
When driving off, apply as little throttle
as possible.
While driving, ease up on the accelera-
tor.
Adapt your speed and driving to the pre-
vailing road and weather conditions.
Do not deactivate the ESP
®. Excep-
tions: (
page 82).
Failure to follow these instructions increas-
es the risk of an accident.
Page 346 of 481
345 Practical hints
What to do if …?
Problem
Possible cause
Suggested solution
v
The yellow ESP
® warning lamp
comes on while driving.
The ESP
® switched off.
Risk of accident!
Switch the ESP
® back on (
page 83).
Adapt your speed and driving to the pre-
vailing road and weather conditions.
If the ESP
® cannot be switched back on,
have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
<
The red seat belt telltale illumi-
nates briefly after starting the
engine.
The driver has not fastened his or her seat
belt.
Fasten your seat belt.
The warning lamp goes out.
Page 354 of 481
353 Practical hints
What to do if …?
Display
Possible cause
Possible solution
ABS
MALFUNCTION
VISIT WORKSHOP
The ABS has detected a malfunction and
has switched off. The ESP
® and the BAS are
also deactivated.
The brake system is still functioning nor-
mally but without the ABS available.
Continue driving with added caution. Wheels
may lock during hard braking, reducing steer-
ing capability.
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.
DISPLAY DEFECTIVE
VISIT WORKSHOP
The ABS or the ABS display is malfunction-
ing.
Continue driving with added caution. Wheels
may lock during hard braking, reducing steer-
ing capability.
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.
Page 356 of 481
355 Practical hints
What to do if …?
Display
Possible cause
Possible solution
ESP
MALFUNCTION
VISIT WORKSHOP
The ESP
® has detected a malfunction and
switched off.
The ABS may still be operational.
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.
DISPLAY DEFECTIVE
VISIT WORKSHOP
The ESP
® or the ESP
® display is malfunc-
tioning.
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.
Page 357 of 481
356 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
ESP
UNAVAILABLE
SEE OPERATORS
MANUAL
The ESP
® was deactivated because the
power supply has been interrupted.
The ABS is still operational.
Synchronize the ESP
®. With the vehicle sta-
tionary and the engine running, turn the
steering wheel completely to the left and
then to the right to synchronize the ESP
®.
If the ESP
® message does not go out:
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.
!When synchronizing the ESP
®, make
sure you can turn the steering wheel in
both directions as far as it will go with-
out the wheel hitting any objects, e.g.
aroad curb.