Volkswagen Golf Service & Repair Manual: Dismantling and assembling heater and air conditioning unit

Volkswagen Golf Service & Repair Manual / Heating, air conditioning / Air conditioner / Front heater and air conditioning unit / Dismantling and assembling heater and air conditioning unit

Note

There are different designs and makes of heater and air conditioning unit. The individual components of the various heaters and air conditioning units are similar but not identical. The combined fitting of different makes of component is therefore not permissible → Electronic Parts Catalogue.

The following illustrations show a “Valeo” heater/air conditioning unit, distinguishing features with respect to other makes → Chapter.

Note

The illustration shows a left-hand drive vehicle. Dismantling and assembling is basically identical.

Dismantling and assembling heater and air conditioning unit

1 -	Air distribution housing

Different versions

The combined fitting of different makes of component is not permissible

The following illustrations show the heater unit from “Valeo”.

Depending on vehicle equipment with or without auxiliary air heater element -Z35- with auxiliary air heater control unit -J604-.

Distinguishing makes → Chapter.

2 -	Wiring harness

Different versions. Refer to → Electronic Parts Catalogue.

3 -	Evaporator housing

Note

On vehicles without air conditioning system, a flow rate limiter is fitted in place of the evaporator.

4 -

Bolt

Qty. 3.

1 Nm

5 -	Left holder

For heater and air conditioning unit

Removing and installing → Chapter.

6 -

Nut

4.5 Nm

7 -

Nut

4.5 Nm

8 -	Right holder

For heater and air conditioning unit

Removing and installing → Chapter.

9 -	Air intake box

Different versions. Refer to → Electronic Parts Catalogue.

10 -

Bolt

Qty. 2.

1 Nm

Removing and installing heater and air conditioning unit

Special tools and workshop equipment required Torque wrench -V.A.G 1331/- (5…50 Nm) & ...

Removing and installing air distribution housing

Note The illustration shows a left-hand drive vehicle. The removal and installation procedure is identical for both versions. ...

Other materials:

Removing and installing poly V-belt pulley with freewheel, manufacturer: Valeo
Special tools and workshop equipment required Multipoint adapter -3400- Torque wrench -V.A.G 1332- ...

Removing and installing inner door handle
The inner door handle is clipped into trim panel. Note Removal and installation are described for the trim panel on driver side. Follow same instructions for the front passenger side as appropriate. ...

Leaks or internal damage (e.g. noises or lack of power)
– Drain refrigerant circuit. – Remove air conditioner compressor. Note In the event of internal damage (to air conditioner compressor), purge with R134a refrigerant → ...