See also:

Please bear the following in mind
Resetting the service interval display A qualified specialist workshop, e.g. an authorized Mercedes-Benz Center, will reset the service interval display after the necessary service work has been c ...

Rear fog lamp
- To switch on the rear fog lamp: turn the SmartKey in the ignition lock to position 2 or start the engine. - Turn the light switch to or or . If the light switch is set to or , the rear f ...

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 ...