Evaporator Unit Renewal - Aston Martin DB7 Workshop Manual

Air Conditioning Repair Procedures
Air-Conditioning Unit Renew
^^?
10. Disconnect the pliable trunking from the unit (Fig. 8 . 2 . 0 2 . 1 E v a p o r a t O r U n i t R e n e w a l
1-2). ^
1. Remove the air conditioning unit assembly.
2. Remove the heater pipe guide plate securing screws
and remove the guide plate.
3. Remove the screws secu ri ng evaporator sensor and
withdraw the sensor from the evaporator.
4. Remove the screws securing the solenoid mounting
plate and displace the mounting plates from the
unit.
5. Removetheharnesstocasingearthboltand displace
the harness.
6. Cut and remove the harness to casing securing
ratchet straps and displace the harness from the
casing.
7. Displace the vacuum hose from the casing.
8. Displace and remove the casing securing clips.
9. Splitthecasingandremovetheevaporatorfromthe
unit.
10. Remove the expansion valve guide securing screws
and remove the plate.
1 1 . Displace and remove the plate from the evaporator.
12. Fitting the new evaporator is the reversal of the
removal procedure.
13. Refill the engine cooling system with coolant.
14. Recharge the air conditioning system.
Figure 1
1 1 . Twistandpulloutthefourairconditioningunitstub
pipes (Fig. 1-3)
12. Remove the screws securing the air conditioning
unit support stays.
13. Displace the tunnel carpet for access to the lower
fixing bolts and remove the stays.
14. Disconnect the condensate drain tubes.
15. Peel off the tape securing the windscreen demist
duct to the distribution box (Fig. 1 -4).
16. Remove the air conditioning unit to bulkhead
securing nuts.
1 7. Carefully lift out the air conditioning unit complete
with the distribution box.
18. Remove the distribution box securing screws and
remove the assembly (Fig. 1 -5).
19. Reverse the removal procedure to refit the air
conditioning unit.
Note: Ensure new'O'rings are fitted toall air conditioning
tiose connections.
8-56 May 1996