See also:

Problems with the engine
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Refrigerant of the air-conditioning system
The air-conditioning system is filled with R134a refrigerant and a special PAG lubricant. Never use refrigerant R 12 (CFC) or mineral lubricants. Otherwise, you could damage the air-conditio ...

 Operating audio player or audio media
Audio data from various audio devices or media can be played, depending on the equipment installed in the vehicle. Switch on COMAND and select the audio device or audio medium. Press the or ...