Not all tires that have the M+S identification offer the driving characteristics of winter tires. Winter tires have, in addition to the M+S identification, the snow flake symbol on the tire sidewall. Tires with this identification fulfill the requirements of the Rubber Manufacturers Association (RMA) and the Rubber Association of Canada (RAC) regarding the tire traction on snow and have been especially developed for driving on snow.

An electronic speed limiter prevents your vehicle from exceeding the following speeds:

 - All vehicles (except AMG vehicles):

130 mph (210 km/h)
 - AMG vehicles: 155 mph (250 km/h)
 - AMG vehicles with Performance Package (Wagon): 174 mph (280 km/h)
 - AMG vehicles with Performance Package (Sedan): 186 mph (300 km/h)
The speed rating of tires mounted at the factory may be higher than the maximum speed that the electronic speed limiter permits.

Make sure that your tires have the required speed rating as specified in the "Tires" section e.g. if you buy new tires.

Further information about reading tire data can be obtained from any qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.