Evaporator Core: Service and Repair

Evaporator

- Remove the heater and A/C unit:

• Vehicles with Climatronic, refer to => [ Heating and A/C Unit, Climatronic ] Heating and A/C Unit, Climatronic.

• Vehicles with Climatic, refer to => [ Heating and A/C Unit, Climatic ] Removal and Replacement.

- Disassemble the heater and A/C unit:

• Vehicles with Climatronic, refer to => [ Heater and A/C Unit, Climatronic ] Heater and A/C Unit, Climatronic.

• Vehicles with Climatic, refer to => [ Heating and A/C Unit, Climatic ] Heating and A/C Unit, Climatic.

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






- Remove the evaporator - A - from the evaporator housing lower section.

• Check the condensation water drain before installing the evaporator. Clean the drain if necessary.

• Before inserting evaporator, clean evaporator housing and the evaporator if necessary.

- When inserting evaporator - A - into lower section of evaporator housing and when assembling both housing halves, make sure the seal - F - is not damaged.

- Check the seal - F - before installing the evaporator. It must glued all the way around.






- Mount the bracket - C - and seal/insulation - B - on the evaporator connecting pipes - D - and - E -.

- Insert evaporator - A - into lower section of evaporator housing as shown in the illustration.

• After assembling both housing halves, check seal / insulation -B- for correct seating at pass-through for both refrigerant lines -D- and -E-.

• Check seating of bracket -C- on both refrigerant lines -D- and -E- for correct seating.

• If heat protection 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).