See also:

Activating/deactivating the residual heat function
The residual heat function is only available in vehicles for Canada with automatic climate control. It is possible to make use of the residual heat of the engine to continue heating the stati ...

BAS PLUS (Brake Assist System Plus)
BAS PLUS is only available in vehicles equipped with DISTRONIC PLUS. Observe the "Important safety notes" section. At speeds above approximately 20 mph (30 km/h), BAS PLUS assists ...

Changing the battery
You require a CR 2025 3 V cell battery. •► Take the mechanical key out of the SmartKey •► Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow unti ...