Oil change
An oil change should be carried out by your service center only.
See also:
Malfunction
Comfort Access may not function properly if it
experiences interference from external sources
such as mobile phones, metal objects, overhead
power lines, transmission towers, etc.
In this case, ...
Capacities
...
Deleting all stored programs
Press both outer memory buttons 1 for approx.
20 seconds until the LED flashes rapidly.
All stored programs are deleted.
The programs cannot be deleted individually. ...