C. Vacuum Circuit 2, Fresh/Recirculated Air Flap (42)

C. Checking vacuum circuit 2, vacuum elements for fresh/recirculated air flap (42) for leaks.





1 Press function selection button "O" on the control unit.

2 Evacuate with the tester (approx. 400 mbar) and read off the pressure gauge.




3 If the indication on the pressure gauge changes, individually check the vacuum elements (42), renew if required or check vacuum lines medium green/light blue and dark red, renew if necessary.