Volkswagen Golf Service & Repair Manual: Searching for leaks in refrigerant circuits using leak detector -V.A.G 1796

Note

Small leaks can be detected with, for example, an electronic leak detector.

–	Evacuate refrigerant circuit using an air conditioner service station → Chapter.

Note

If a larger leak is detected during the evacuation process, determine cause and rectify as described → Chapter.

If during the evacuation process no leak is detected or a very small leak is detected that but cannot be located, proceed as follows → Chapter.

Refrigerant gas is quickly dispersed by air motion. Therefore drafts must be avoided during a search for leaks.

If the refrigerant circuit is completely empty, charge with about 10% of refrigerant capacity (sticker R134a or vehicle-specific workshop manual).

Leak detection:

–	Prepare leak detector for operation according to its operating instructions.

–	Always hold probe tip under location of suspected leak.

If the rate of clicks rises or a howl occurs, depending on model, a leak has been found (see operating instructions for leak detector).

Searching for leaks in refrigerant circuits using leak detector -V.A.G 1796

Note A leak in the refrigerant circuit can be detected, for example, by pressurising the circuit to a maximum of 15 bar using cleaned and dr ...

Note Small leaks can be detected with, for example, an UV leak detector additive. – Evacuate refrigerant circuit using a ...

Renewing bonded rubber bush for wheel bearing housing, four-wheel drive
Special tools and workshop equipment required Assembly tool -3301- Viscous fan fitting tool -3367- Carrier -3390- Torque wrench -V.A.G 1332- Removing – ...

Lowering rear axle, multi-link suspension, four-wheel drive
Special tools and workshop equipment required Torque wrench -V.A.G 1332- Engine and gearbox jack -V.A.G 1383 A- ...

Removing and installing engine speed sender -G28-
Special tools and workshop equipment required Socket AF 4 mm -T10370- Removing – Remove noise insulation → General body repair ...