V8 Quattro V8-3562cc 3.6L DOHC (PT) (1990)
a. Apply gasket around heater core without gaps prior to installing into heater box.
b. After heater core installation, fill opening between heater core and housing with a suitable silicone rubber sealant.
Fig. 16 Aligning Flaps. V8 Quattro
c. Align flaps using alignment tool 2076 A or equivalent, prior to assembling heater box halves.
d. Install flap levers to flaps as shown
e. Replace self-adhesive gasket on heater box.
f.
Lower heater core connection is for hose to water pump.