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-conditioning system.
See also:
Notes on care
Regular care of your vehicle is a condition for retaining the quality in the
long term. Use care products and cleaning agents recommended and approved by Mercedes-
Benz.
WARNING
Many cleani ...
Engine
Display messages
Possible causes/consequences and
Solutions
The yellow Check Engine warning lamp lights up while the engine is
running.
There may be a malfunction ...
Components of COMAND
COMAND consists of:
• the COMAND display/SPLITVIEW
• the DVD changer
• the COMAND controller
• the COMAND function buttons
• the telephone keypad
• connections in the glove box (USB, ...