See also:

Underinflated or overinflated tires
Underinflated tires WARNING Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel ...

Activation conditions
You can activate the HOLD function if: • the vehicle is stationary. • the engine is running. • the driver's door is closed or your seat belt is fastened. • the parking brake is not applied. • the ...

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 ...