See also:

Important safety notes
WARNING Do not park this vehicle in areas where combustible materials can come into contact with the hot exhaust system. Do not park the vehicle on dry grassland or harvested grain fields. C ...

Purity
Assuring the purity of DEF is particularly important with respect to avoiding malfunctions in the exhaust gas aftertreatment system. If DEF is pumped out of the DEF tank, e.g. during repair wor ...

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 ...