Compressor Oil - Topping Up and Adjusting For R12

To Remove
1 Detach the negative lead from the battery.
2 Drain the system of refrigerant, see "Refrigerant".
3 Unscrew the compressor hose connections. Where appropriate, cover the oil cooler. Place plugs over compressor connections and hose connections.

Important : Both the desiccant container and compressor oil in the system absorb water from the air, which cannot then be removed. For this reason all connections which are opened must be immediately plugged.

4 Unplug connector.
5 Remove the plastic cover from over the right-hand headlamp.
6 Relieve the tension in the compressor belt.
7 Undo the compressor belt tensioner. Leave it in position under the coolant expansion tank hose.
8 Remove the compressor retaining screws and heat shield. Lift the compressor towards the center of the car and carefully lift it out.

When changing the compressor, see "Refrigerant" for adjusting oil quantities.

Be sure to use the correct type of oil when refilling as the R12 and R134a systems use different types of oil, see "Refrigerant".







To Install
9 Check that the compressor belt tensioner is in position and that the belt is correctly positioned on the engine's pulley.
10 Install the belt tensioner. Reinstall the rest of the retaining screws without tightening them.

Important : Screws must be tightened in the following order to avoid damage to the compressor securing tabs and bracket.

Start by tightening the two screws on the front edge of the compressor to 20 Nm (14.8 lbf ft). See drawing. Then tighten the two screws in the rear edge of the compressor to 20 Nm (14.8 lbf ft).

Tighten the two remaining screws to 39 Nm. (28.8 lbf ft)

11 Install the drive belt and tension as below. Use a tensiometer.
When reinstallation belt:
Tighten to 80 ± 5 lb (355 ± 22 N)
When lifting new belt:
Tighten to 120 ± 10 lb (535 ± 45 N)
When checking belt tension
If belt tension is below 60 lb (265 N), it is recommended that the belt be tensioned to 80 ± 5 lb (355 ± 22 N)
12 Install the plastic cover over the right-hand headlamp.







13 Plug in the connector. Check that the cables do not rub against the pulley.
14 Remove the plugs from the compressor and hoses. Check that there is no dirt in the connections.
Install hoses to compressor.

Tightening torques:

Pressure hose: 32.5 Nm (24 lbf ft)

Vacuum hose: 37.5 Nm (27.8 lbf ft)

15 Fill the system with refrigerant. See "Refrigerant".
16 Carry out a performance test.