Installation details of the evaporator housing K/V
1 - Air conditioner evaporator/heater heat exchanger housing; 2 - Soundproofing panel; 3 - Air distributor; 4 - Instrument panel holder; 5 - Heater Fan Wiring Connector; 6 - Fan resistor assembly connector; B10/6x1 - Evaporator temperature sensor contact connector; M16/8 - Electric motor for mixing flap drive; M39 - Stepper motor for the circulation mode switching damper drive; N15/3 - ETC Control Module; N19 - K/V control module
Installation details of the evaporator housing K/V
Attention! All sealing elements must be replaced.
1. The installation details of the air conditioner evaporator housing/heater heat exchanger are shown in the illustrations to which all references in the text refer.
2. Drain the cooling system (see Chapter Checking the cooling system and frost resistance of the coolant, replacing the liquid).
3. Disconnect the cooling system overflow hose from the battery shield.
4. Loosen the retaining clamp and disconnect the upper hose from the electric water pump.
5. Loosen the mounting nuts and remove the expansion tank of the cooling system from the engine compartment bulkhead. Move the tank to the side.
6. Disconnect the cooling system hoses (17) from the heater heat exchanger.
7. In a car service workshop, discharge the cooling system.
8. Remove the self-locking nut (16) of the expansion valve (15).
9. Disconnect the low-pressure (13) and high-pressure (14) lines of the refrigeration system from the expansion valve (15).
10. Remove the instrument panel holder (4).
11. Release the ETC control module (N15/3) from the clips.
12. Disconnect the electrical wiring from the air mixing flap drive electric motor (M16/8).
13. Disconnect the electrical wiring from the stepper motor of the air circulation mode switching flap drive (M39).
14. Disconnect the electrical wiring connector (B10/6x1) of the evaporator temperature sensor.
15. Disconnect the electrical wiring from the heater fan resistor assembly (6).
16. Disconnect the electrical wiring from the heater fan (5).
17. Remove the A/C control module (N19).
18. Release the cable harness from the intermediate fasteners on the evaporator casing (1).
19. Remove the soundproofing panel (2).
20. Disconnect the drain hose from the bottom of the A/C evaporator housing (1).
21. Remove the casing (1).
22. Installation is carried out in the reverse order - the air conditioning system must be filled in a car service workshop.
23. Finally, check the cooling system for signs of developing leaks.