Note: The air conditioning system must be discharged before performing this procedure (if she is), contact a specialist.
Disassembly
1. Disconnect the negative battery cable.
2. Drain the engine coolant (see chapter 1).
3. Loosen the hose clamps and disconnect the heater hoses from its radiator and from the fire wall (see picture). Blow remaining coolant out of the radiator with low pressure air.
4. Disconnect the vacuum hose from the internal vacuum control valve.
5. If the car is equipped with an air conditioning system. Disconnect the fluid supply and battery supply from the evaporator core on the firewall. Close the inlet pipes and the inlet and outlet of the evaporator core with caps to prevent contamination.
6. Remove the instrument panel (see chapter 11).
7. Remove the bracket supporting the evaporator (see picture), located between the instrument panel and the recirculation pipes.
13.7. Before removing the heater/evaporator housing, disconnect it from the bracket.
1. Aluminum heater radiator cover gasket.
2. Additional heater radiator cover, aluminum.
3. Laying between a radiator and the case, aluminum.
4. Seal between radiator tube and terminal, aluminum.
5. Gasket between case and radiator.
6. Screw.
7. Alloy door lever.
8. Bracket.
9. Alloy door roller
10. Additional radiator cap copper or bronze.
11. Radiator gasket.
12. Gasket between tube and plate.
13. Lower heater radiator seal.
14. Heater radiator assembly.
15. Gasket between case and radiator.
16. Right evaporator core gasket.
17. Evaporator Radiator Assembly.
18. Air conditioning tube seal.
19. Gasket between radiator and evaporator housing.
20. Laying of a drain pipe of the evaporator of the conditioner.
21. Lower evaporator core gasket.
22. Vacuum motor.
23. Spring nut of the motor arm.
24. Evaporator bracket.
25. Resistance
26. Heater housing.
27. Upper air intake gasket
28. Outside air intake.
29. Inner gasket for the air intake door of the air conditioner.
30. Fan motor mounting gasket.
31. Fan motor.
32. Fan wheel.
33. Fan plate gasket.
34. Wheel fixing washer.
8 Remove the screws securing the lower counter to the bottom of the heater/evaporator housing.
9. From the engine compartment, unscrew the three nuts that secure the heater/evaporator housing to the firewall.
10. Remove the two screws securing the bracket to the top of the hood.
11. Carefully pull the housing with the evaporator heater through the dashboard out of the vehicle.
12. Disconnect the internal vacuum control valve/vacuum supply line from the heater core tube gasket (see picture).
13.12. Be sure to disconnect the vacuum line with the internal control valve from the core tube gasket - pull it towards you from the machine body.
1. Heater radiator tubes.
2. Additional heater radiator cover.
3. Radiator tube gasket.
4. Vacuum feeding.
13. Remove the gasket from the heater radiator tubes.
14. If the vehicle is equipped with an electronic automatic temperature control system (EATL), unscrew the three screws securing the motor unit drive door (see picture) to the heater/evaporator body. Remove the wire.
13.14. On EATC-equipped vehicles, the motor drive door must be removed from the top of the heater/evaporator housing to gain access to the heater core.
1. Turn on engine cooling.
Note: when removing, disconnect the drive from the bracket, lift it by 13 mm (0.5 inch) first up, and then towards the cabin.
2. Motor drive door.
3. To the electrical connector.
4. Motor drive door mounting plate.
5. View A.
15. Remove the 4 screws securing the optional heater radiator cover and remove the optional cover from the heater body (see picture).
13.15. Access to the heater core requires removal of the accessory cover and gasket from the top of the heater/evaporator assembly
1. Additional heater cover.
2. Additional cover and radiator gasket.
3. Heater radiator tubes.
4. Laying of tubes of a radiator.
5. Heater radiator.
16. Remove the radiator and gaskets from the housing.
17. Transfer the three seals to the new heater core.
18. Install the heatsink and seals into the housing.
19. Put the additional cover on the heater/evaporator housing, tighten the four fixing screws.
20. If the machine is equipped with the EATC system, place the door on the drive shaft. Tighten the 3 screws connecting the actuator to the evaporator body.
Installation
21. Install the seals on the heater radiator tubes.
22. Insert and install a vacuum control valve and vacuum line through the radiator tube seal.
23. Position the heater/evaporator assembly housing in the hood top panel opening and appropriate location on the instrument panel. Tighten the two screws to secure the brackets and the top panel of the hood.
24. Install the three nuts in the engine compartment to secure the heater housing to the firewall.
25. Fasten the floor sensor with two screws to the heater body.
26. Install the heater/evaporator housing support bracket.
27. Install the instrument panel (see chapter 11).
28. If there is an air conditioner, connect the pipeline and suction accumulator to the evaporator radiator (see section 16).
29. Connect the heater hoses to the radiator.
30. Connect the black vacuum hose to the vacuum control valve in the engine compartment.
31. Add coolant (see chapter 1).
32. Connect the negative wire to the battery.
33. Check the operation of the heating system.
34. Check for possible leaks in the air conditioning system. remove them and charge the system.
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