See also:

Charging the battery
WARNING Never charge a battery still installed in the vehicle unless a battery charger unit approved by Mercedes-Benz is being used. Gases may escape during charging and cause explosions tha ...

Conditions for activation
RACE START can be activated when:  - the doors are closed.  - the engine is running and it has reached an operating temperature of approximately 176  °F (80 °C). This is the case ...

Adjusting the rear seat head restraint angle
Adjust the head restraints so that they are as close as possible to your head. You can only adjust the two outer head restraints. X Pull or push the top of the head restraint until it is in the de ...