See also:

Diagnosis OBD
On the driver's side is an OBD socket for checking components relevant to the composition of the vehicle's emissions. ...

Brake assistant
When you apply the brakes rapidly, this system automatically produces the maximum braking force boost. It thus helps to achieve the shortest possible braking distance during full braking. This ...

Supplementary text messages
You can call up more information, e.g., on the cause of a malfunction and on how to respond, via Check Control. In urgent cases, this information will be shown as soon as the corresponding lamp ...