See also:

Fuel requirements
Use only premium-grade unleaded gasoline. The octane number should be at least 91. Details can be found on the gas pump. The octane number is the average value of the Research Octane Number (RON ...

The spray nozzles are misaligned
The windshield washer fluid from the spray nozzles no longer hits the center of the windshield. The spray nozzles are misaligned. - Have the spray nozzles adjusted at a qualified specialist wor ...

Adjusting the head restraints manually
Adjusting the head restraint height The head restraints must only be removed at a qualified specialist workshop. Mercedes-Benz recommends that you use a Mercedes-Benz Center for this purpose. ...