See also:

System self-test
After you have switched on the ignition, the system carries out a self-diagnosis. WARNING   A malfunction in the system has been detected if one of the following conditions occurs: • t ...

Engine
Display messages Possible causes/consequences and Solutions The coolant level is too low. Add coolant, observing the warning notes when doing so. If coolant nee ...

Qualified specialist workshop
An authorized Mercedes-Benz Center is a qualified specialist workshop. It has the necessary specialist knowledge, tools and qualifications to correctly carry out the work required on your vehicle. ...