A/C Compressor, Removing and Installing

A/C Compressor - 6-Cylinder Engine, Removing And Installing

NOTE:
- Before carrying out any work on the A/C refrigerant system, refer to all CAUTIONS and WARNINGS in A/C refrigerant system safety measures.
- Service refrigerant system using Kent More ACR 4 or equivalent
- During servicing, all couplings, fittings and related fasteners must be torqued to specifications.

Special tools, testers, measuring instruments and auxiliary items required







- VAG 1331 Torque wrench (or 5 - 50 Nm equivalent)
- Refrigerant Charging/Recycling/Recovery unit Kent Moore ACR 4 or equivalent

Removing
- If replacing compressor, discharge refrigerant system.

WARNING: The cooling system is pressurized when the engine is warm. Wear gloves and other appropriate protection, slowly and carefully release system pressure (if necessary) before performing repairs.

- Drain engine coolant
- Bring front end assembly (lock carrier) into service position.
- Remove ribbed belt
- Remove viscous coupling







- Remove resistor for radiator fan -2- from left longitudinal member -1-.
Nut tightening torque: 8 Nm (71 in lb)
- Remove oil filter.







- Loosen coolant pipe securing bolts -arrows- on oil pan and remove coolant hoses from oil cooler.
Bolt tightening torque: 10 Nm (69 in lb).
- Remove oil cooler.







- Loosen nut -arrow- on bracket -1- for refrigerant pipes.
Nut tightening torque: 8 Nm (71 in lb).
- Remove bolts for compressor. key number 5.
- Remove compressor from bracket
- Disconnect electrical connectors and wiring as necessary.







- Swing compressor downward (leaving refrigerant hoses connected) and secure compressor to lower frame member with suitable wire (e.g.: welding rod or similar) as illustrated.

CAUTION: Do not allow compressor to hang from refrigerant hoses unsupported.

- If replacing compressor, remove socket head bolts from refrigerant line retainer at compressor, and remove refrigerant lines.

Installing
- Install in reverse order of removal, noting the following:

NOTE:
- If installing replacement compressor, always use new seals at compressor refrigerant lines.
- Compressor refrigerant line hex socket bolts M8 - tightening torque: 25 Nm (18 ft. lb.)
- Evacuate and recharge refrigerant system.
- Perform leak test.







Fig. 1 Ribbed belt, routing
1. Generator (GEN)
2. Ribbed belt
3. Power steering pump
4. Viscous fan
5. A/C compressor
6. Crankshaft pulley
7. Tensioner pulley

NOTE: When installing belt ensure it is correctly seated in pulley.