90 Quattro 20V (Canada) L5-2309cc 2.3L DOHC (7A) (1989)
Air Plenum Cover
9. Remove right side air plenum cover
10. Remove outside temperature sensor B.
11. Remove mounting bolts A.
12. Remove air intake.
Note: Be sure gasket around air intake seals correctly during installation
Heater/Evaporator Connections
13. Remove nuts A on firewall.
Note: Be sure rubber grommet -B- seals properly during installation.
Fuel Injection Control Unit
14. Remove vacuum hose from two way valve.
15. Remove water drain hose from heater/evaporator housing.
16. Remove fuel injection control unit (see arrow).
17. Remove heater/evaporator housing.
Note: Check Bowden cables for kinks and ease of movement before reinstalling heater/evaporator housing. Replace cables if necessary.