See also:

General notes
WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes-Be ...

Important notes on use
To function properly, BlueTEC exhaust gas aftertreatment must be operated with the reducing agent DEF. Adding DEF is one of the tasks performed during maintenance. Under normal operating condi ...

Headlamps fogged up on the inside
The headlamps may fog up on the inside if there is high atmospheric humidity. ► Drive with the headlamps switched on. The level of moisture diminishes, depending on the length of the jou ...