Volkswagen Golf Service & Repair Manual: Test prerequisites

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / Checking pressures on vehicles / Checking systems with an expansion valve and reservoir (without regulated air conditioner compressor) / Test prerequisites

Radiator and condenser must be clean (clean them if necessary).

The V-belt for air conditioner compressor and alternator is correctly tensioned.

All air ducts, covers and seals are OK and properly installed.

The flaps reach their end positions.

The engine is at operating temperature.

The evaporator and heating do not draw any uncooled air at highest fresh air blower speed.

With the engine running and the air conditioning system set to full power, check the following points:

The fresh air blower is running

The radiator fan is running or is switched on.

The fresh air and air recirculation flap is set to “recirculate”.

The ambient temperature is more than 15^oC.

The temperature switch for evaporator -E33- is correctly fitted and its switching temperatures are correct.

Checking systems with an expansion valve and reservoir (without regulated air conditioner compressor)

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Checking

Switch off ignition. – Connect manifold gauge (air conditioner service station). – Read pressure gauge. ...

Other materials:

Removing and installing air recirculation flap control motor -V113-, LHD vehicles
Heater and air conditioning system with electric/manual controls Special tools and workshop equipment required Vehicle diagnostic tester Note The control motor has end stops wi ...

Removing and installing swivel joint
Special tools and workshop equipment required Ball joint puller -3287 A- Angle wrench -V.A.G 1756- Ring spanner insert -V.A.G 1332/10- ...

Perform battery test with battery tester with printer -VAS 6161-.
WARNING Danger of injury! Observe warning notices and safety regulations → Chapter! Special tools and workshop equipment required ...