See also:

DEF
Important safety notes For BlueTEC vehicles only. DEF is a non-flammable, non-toxic, colorless, odorless and water-soluble fluid. Only use DEF that complies with ISO 22241. Do not add any ...

Problems with your vehicle
If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to ...

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 ...