Evaporator Core: Service and Repair

Evaporator

Special tools, testers and auxiliary items required

• Robinair A/C Service Unit (ROB 134APF) or newer model

• Extract the refrigerant using the (ROB 134APF) (or succeeding model).

• Environmentally hazardous draining of refrigerant is an offense punishable by law.

• See notes, refer to => [ Repairing Vehicles Equipped with A/C and Handling Refrigerants ] Repairing Vehicles Equipped with A/C and Handling Refrigerants.

Removing

- Remove the heating and A/C unit. Refer to => [ Heating and A/C Unit ] Removal and Replacement.

- Disassemble the evaporator housing. Refer to => [ Evaporator Housing ] Evaporator Housing.

- Remove seal - 6 - from evaporator housing.

- Remove bolts - 2 - and - 7 - (1.5 Nm).

- Disconnect evaporator housing upper section - 1 - from evaporator housing lower section - 8 -.

- Remove evaporator - 3 - and expansion valve - 5 - from the evaporator housing lower section - 8 -.

- Remove insulation - 4 - from expansion valve - 5 -.

• Make certain not to damage the evaporator seal - 9 - when removing.

Installing

• Check the condensation water drain in the evaporator housing lower section- 5 - and clean if necessary before installing the evaporators- 2 -.

• Clean the evaporator housing lower section - 5 - and, if necessary, the evaporator - 2 - before installing.

• Make certain the seal - 1 - is not damaged and is sealed all the way around before the evaporators- 2 - are installed.

- Mount the insulation - 3 - on the expansion valve - 4 -.

- Install the evaporator - 2 - in the evaporator housing lower section - 5 -. Make certain that the surrounding seal - 1 - is not damaged.

Additional installation is in reverse order of removal.

• Check that the insulation - 3 - has been installed correctly after the assembly of both housing halves.

• If insulation - B - is missing or not installed correctly, it can cause reduced performance of the A/C system (change of adjusted control characteristics of expansion valve due to radiant heat).