Page 78 of 376

78 Safety and SecurityDriving safety systemsFour wheel electronic traction system (4MATIC*) with the ESP
Models with all-wheel-drive* only.
The 4MATIC improves vehicle’s ability to 
use available traction, e.g. during winter 
operation in mountains under snowy con-
ditions, by applying power to all four 
wheels.
Warning!
G
If you see the ESP warning lamp
v
 flash-
ing in the speedometer dial, proceed as fol-
lows:
While driving off, apply as little throttle 
as possible
While driving ease up on the accelerator
Adapt your speed and driving style to 
the prevailing road conditions
Failure to observe these guidelines could 
cause the vehicle to skid.
The ESP cannot prevent accidents resulting 
from excessive speed.!Do not tow with one axle raised.
Otherwise the transfer case can be 
damaged, which is not covered by the 
Mercedes-Benz Limited Warranty.
!Performance testing must only be con-
ducted on a two-axle dynamometer.
Otherwise the transfer case can be 
damaged, which is not covered by the 
Mercedes-Benz Limited Warranty.!Because of ESP’s automatic operation, 
the engine must be shut off (key in 
starter switch position0 or1) when 
the parking brake is being tested on a 
brake test dynamometer
Active braking action through ESP may 
otherwise seriously damage the front 
or rear axle brake system.
Operational tests with the engine 
running can only be conducted on a 
two-axle dynamometer. 
     
        
        Page 227 of 376

227 Operation
Driving instructions
Hydroplaning
Depending on the depth of the water layer 
on the road, hydroplaning may occur, even 
at low speeds and with new tires. Reduce 
vehicle speed, avoid track grooves in the 
road and apply brakes cautiously in the 
rain.
Tire traction
The safe speed on a wet, snow covered or 
icy road is always lower than on a dry road.
You should pay particular attention to the 
condition of the road whenever the outside 
temperatures are close to the freezing 
point.
Mercedes-Benz recommends M+S rated 
radial-ply tires for the winter season for all 
four wheels to insure normal balanced 
handling characteristics. On packed snow, 
they can reduce your stopping distance 
compared to summer tires. Stopping dis-
tance, however, is still considerably great-
er than when the road is not covered with 
snow or ice. Exercise appropriate caution.
Tire speed rating
Additional information on winter tires can 
be found under “Winter tires” 
(page 245).
Warning!
G
Do not drive with a flat tire. A flat tire affects 
the ability to steer or brake the vehicle. You 
may lose control of the vehicle. Continued 
driving with a flat tire or driving at high 
speed with a flat tire will cause excessive 
heat build-up and possibly a fire.
Warning!
G
If ice has formed on the road, tire traction 
will be substantially reduced. Under such 
weather conditions, drive, steer and brake 
with extreme caution.
Warning!
G
Even when permitted by law, never operate 
a vehicle at speeds greater than the maxi-
mum speed rating of the tires.
Exceeding the maximum speed for which 
tires are rated can lead to sudden tire fail-
ure, causing loss of vehicle control and pos-
sibly resulting in an accident and/or 
personal injury and possible death, for you 
and for others. 
     
        
        Page 245 of 376

245 Operation
Winter driving
Winter driving
Before the onset of winter have your vehi-
cle winterized at an authorized 
Mercedes-Benz Center. This service in-
cludes:
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 338).
Battery test. Battery capacity drops 
with decreasing ambient temperature. 
A well charged battery helps to ensure 
that the engine can be started, even at 
low ambient temperatures.
Tire change. We recommend M+S rat-
ed radial-ply tires on all four wheels for 
the winter season.
Winter tires
Always use winter tires at temperatures 
below 39°F (4°C) and whenever wintry 
road conditions prevail. Use of winter tires 
is the only way to achieve the maximum ef-
fectiveness of ABS, ESP and 4MATIC* in 
winter operation.
For safe handling, ensure 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 ve-
hicle, you must place a notice to this effect 
where it will be seen by the driver. Such no-
tices are available from your tire dealer or 
from any authorized Mercedes-Benz Cen-
ter.Warning!
G
Winter tires with a tread depth under 0.16 in 
(4 mm) must be replaced. They are no long-
er 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.