329 Operation
Winter driving
Snow chains
Snow chains should only be driven on 
snow-covered roads at speeds not to ex-
ceed 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 
(
page 449). 
Use snow chains in pairs and on rear 
wheels only. Follow the manufacturer’s 
mounting instructions. 
Only use snow chains that are ap-
proved by Mercedes-Benz. Any autho-
rized 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.
Do not use snow chains on the spare 
wheel (
page 453).
Do not use snow chains on wheels with 
MOExtended tires* (
page 449).
!When driving with snow chains, always se-
lect setting 1 of the vehicle level control system 
(
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” (
page 449).
!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.iWhen driving with snow chains, you may 
wish to deactivate the ESP® (page 93) before 
setting the vehicle in motion. This will improve 
the vehicle’s traction.