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Operation
Winter driving
Block 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:
ț Use of snow chains is not permissible
with all wheel/tire combinations
(
୴ page 438).
ț Use snow chains in pairs and on rear
wheels only. Follow the manufacturer’s
mounting instructions.
ț Only use snow chains that are ap-
proved by Mercedes-Benz. Any
authorized Mercedes-Benz Center will
be glad to advise you on this subject.
ț Use of snow chains may be prohibited
depending on location. Always check
local and state laws before installing
snow chains.
ț Do not use snow chains on the spare
wheel (
୴ page 445).
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.
!
When driving with snow chains, always se-
lect the raised level of the level control system
Airmatic (
୴ page 230). Other settings may result
in damage to your vehicle.
!
Some tire sizes do not leave adequate clear-
ance for snow chains. To help avoid serious dam-
age to your vehicle or tires, make sure that the
use of snow chains is permissible as specified in
the “Technical data” section of this Operator’s
Manual, see “Rims and tires” (
୴ page 438).
!
If snow chains are mounted to the front
wheels, they may scrape against the body or axle
components. The tires or the vehicle could be
damaged as a result.
i
When driving with snow chains, you may
wish to deactivate the ESP
®
(୴ page 94) before
setting the vehicle in motion. This will improve
the vehicle’s traction.
i
CLS 63 AMG:
Do not switch off the ESP
®
when driving in snow
or with snow chains mounted.