See also:

Deactivating cruise control
There are several ways to deactivate cruise control: •► Briefly press the cruise control lever forwards 3. or•► Brake. Cruise control is automatically deactivated if:  - yo ...

High outside temperatures
If DEF heats up to over 122 °F (50 °C ) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...

Important safety notes
Consult an authorized Mercedes-Benz Center if you require information on approved and recommended tires and wheels for summer and winter operation. Advice on purchasing and caring for tires is als ...