See also:

Closing the DEF filler cap and fuel filler flap
– Place DEF filler cap 2 on the filler neck and turn it clockwise. – To close the fuel filler flap, press it in the direction of arrow 1. – Drive at a speed above 10 mph (16 km/h). The Check ...

Service messages
Information on the type of service and service intervals (see separate Service Booklet). You can obtain further information from an authorized Mercedes-Benz Center or at http://www.mbusa.com (U ...

General information
If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. ► Check the battery ...