Q&A

 Master

here ya go:

Resetting ASSYST after oil change (oil change reset) at instrument cluster:

Move start switch into position "2".
Within the first 4 s after moving start switch into position "2": press reset button for trip counter twice within one second. The display for the service request is thus activated for 10 s.
Within these 10 s move start switch into position "0". The service request continues to be displayed.
Press reset button for trip counter and hold pressed.
Move start switch into position "2".
Continue to hold reset button for trip counter pressed (about 10 s) until the signal sounds and the new start distance appears in the display.