See also:

Activating/deactivating the MONO function
This function is only available in vehicles for Canada. You can use the MONO function to adopt the temperature and air distribution settings on the driver's side for the front-passenger side. ...

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

DISTRONIC displays in thespeedometer
When DISTRONIC is activated, one or two segments in the set speed range light up. For design reasons, the speed displayed in the speedometer may differ slightly from the speed set for DISTRON ...