See also:

Information on differential anddifferential locks
When the vehicle drives around a corner, the wheels on the outside of the bend must cover a greater distance and must therefore turn more rapidly than the wheels on the inside. The differential, ...

Summer tires
 - Optionally, tires with a maximum speed of over 149 mph (240 km/h) may have "ZR" in the size description depending on the manufacturer (e.g. 245/40 ZR 18). The service specif ...

Displaying service messages
•► Switch on the ignition. •► Press on the steering wheel to select the Serv. menu. •► Press to select the ASSYST PLUS submenu and press to confirm. The service due date ap ...