Evaporator Core: Service and Repair

Evaporator

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

- Disassemble the heating and A/C unit with Climatronic => [ Climatronic Heating and A/C Unit ] Climatronic Heating and A/C Unit, vehicles with Climatronic => [ Climatic Heating and A/C Unit ] Climatic Heating and A/C Unit.

- Disassemble evaporator housing => [ Evaporator Housing Assembly Overview ] Description and Operation.





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

• Before inserting the evaporator, check condensation water drain and clean 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, ensure seal - F - is not damaged.

- Check seal - F - (it must be glued all around) before inserting evaporator.





- Place bracket - C - and seal / insulation - B - onto connecting pipe of evaporator - 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).