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:
Using the main loudspeakers
This function is available in conjunction with
COMAND.
You can use the vehicle loudspeakers to
listen to a disc inserted in the rearcompartment
drive. To do so, at least one of
the rear-compa ...
Tire pressure specifications
WARNING
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
mo ...
911 emergency call
WARNING
The 911 emergency call system is a public
service. Using it without due cause is a
criminal offense.
The following requirements must be fulfilled
for a 911 emergency call:
• the m ...