Activating/deactivating climate control

See also:

Replacing the rear window wiper blade
Removing the wiper blade WARNING The wiper arm could be set in motion and injure you if the wiper is switched on. Remove the key from the ignition lock before replacing the wiper blade. - R ...

Additives
Do not use any additives in the engine oil. This could damage the engine. ...

Engine oil
Vehicles with a diesel particle filter: If the vehicle is mostly driven for short distances, it is possible that malfunctions may occur during the automatic cleaning of the diesel particle fil ...