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:
Flat tire
The "Breakdown assistance" section () contains information and notes
on how to deal with a flat tire. It also provides instructions on changing a wheel
or mounting the spare wheel/emerge ...
Towing a vehicle with both axles on the ground
When having your vehicle towed, observe the
important safety notes.
WARNING
The power assistance for the steering and the
brake force booster do not work when the
engine is not running. You ...
General notes
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered.
There are several ways to turn off the alarm:
To turn the a ...