High outside temperatures
If DEF heats up to over 122 °F (50 °C ) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result.
WARNING
When opening the filler cap of the DEF tank
ammonia gas vapors may escape. Refill DEF
in a well ventilated area only. Ammonia gas
vapors have a pungent odor and are
particularly irritating for your skin, mucous
membranes, and eyes. Inhaling ammonia gas
vapors will cause burning eyes, nose, and
throat, as well as coughing and watering eyes.
See also:
Guide lines in the COMAND display
WARNING
Use of rear view camera can be dangerous if you are color-blind or have impaired
color vision.
Only use rear view camera if you can see and distinguish all colored guidelines
shown ...
Switching on/off
The three red indicator lamps in the button
indicate the heating level you have selected.
If the battery voltage is too low, the seat
heating may switch off.
The system automatically switches ...
Normal occupant weight
The number of occupants the vehicle is
designed to seat, multiplied by 68 kilograms
(150 lbs). ...
