Testing Vacuum Circuit II

TESTING VACUUM CIRCUIT II:
Vacuum Element (38) for Defroster Nozzle Flaps (short and long stroke) with vacuum line red/light blue and red/white, and Vacuum Element for Center Nozzle Flap (40a) and vacuum line red/black.

Pushbutton Control Unit:

Vacuum Elements - Defroster Nozzle Flap (38), Center Nozzle Flap (40a):

1. Push function button "c" and engage temperature dial (3) "MIN". Switch on ignition.
2. Evacuate with tester (approx. 600 mbar) and read pressure gauge.
3. If readout on pressure gauge changes, renew vacuum element (38) or vacuum line.

NOTE: Check vacuum element (38 and 40a) individually in the event of a leak in circuit II and renew vacuum element found leaking.