See also:

Additives
Do not use any additives in the engine oil. This could damage the engine. ...

Deactivating/activating the ECO start/ stop function
Example: ECO button If indicator lamp 2 is off, the ECO start/ stop function has been deactivated manually or as the result of a malfunction. The engine will then not be switched off automat ...

Checking the tire pressures
Important safety notes WARNING   Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling ...