Volkswagen Passat 1995 Official Factory Repair Manual page 1351

Function tests
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
Test sequence
- Loosen upper section of air filter and remove
filter insert.
- Place air filter upper section so that regulating
flap in air filter lower section can be seen.
- Disconnect vacuum line of vacuum unit from
temperature regulator.
- Connect vacuum line to hand vacuum pump
V.A.G 1390.
- Operate pump and check regulator flap for ease
of movement and function of vacuum unit.
Regulator flap must seal cold air connection
seal
Page 12 of 13
24-98
6/12/2004