See also:

DVD playback conditions
If video DVDs do not conform to the NTSC or PAL TV standards, they may create picture, sound or other problems during playback. COMAND can play back video DVDs produced according to the followi ...

Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

General notes
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 in ...