See also:

On-board diagnostic interface
WARNING If you connect equipment to the on-board diagnostics interface, it can affect the operation of the vehicle systems. This can impair the operating safety of your vehicle while driving ...

Hazard warning lamps
The hazard warning lamps automatically switch on if: • an air bag is deployed. • the vehicle is slowed down severely from a speed of over 45 mph(70 km/h) and comes to a halt. To switch ...

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 ...