For 1990-2009 cars

### Removal Procedure

1. Remove the air cleaner cover and duct assembly. Refer to Air Filter Element Replacement in Engine Controls.
2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
3. Disconnect the liquid line fitting at the condenser.
4. Disconnect the liquid line (2) at the rear fitting (C34 only).
5. Disconnect the liquid line fitting at the orifice.
6. Carefully remove the liquid line.
7. Remove the O-rings.

### Installation Procedure

1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the A/C refrigerant hose and the A/C refrigerant component.
2. Lightly coat the new O-ring seals (1) with mineral base 525 viscosity refrigerant oil.

Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the new O-ring seal to enter the refrigerant system.

3. Carefully slide the new O-ring seals (1) onto the A/C refrigerant hose until seated.
4. Position the liquid line into place.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

5. Connect the liquid line fitting at the orifice.

Tighten
Tighten the fitting to 27 N·m (20 lb ft).

6. Connect the liquid line (2) at the rear fitting (C34 only).

Tighten
Tighten the fitting to 27 N·m (20 lb ft).

7. Connect the liquid line fitting at the condenser.

Tighten
Tighten the fitting to 27 N·m (20 lb ft).

8. Evacuate and charge the system. Refer to Refrigerant Recovery and Recharging .
9. Leak test the A/C system. Refer to Leak Testing .
10. Install the air cleaner cover and duct assembly. Refer to Air Filter Element Replacement in Engine Controls.