HVAC Systems (Service Information): Plumbing: Condenser-A/C: Installation

NOTE: If the A/C condenser is being replaced, add 30 milliliters (1 fluid ounce) of refrigerant oil to the refrigerant system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.

NOTE: Replacement of the refrigerant line O-ring seals is required anytime a refrigerant line is opened. Failure to replace the rubber O-ring seals could result in a refrigerant system leak.

Fig 1: A/C Condenser Refrigerant Lines - Typical

Courtesy of DAIMLERCHRYSLER CORP.

1. Tilt the radiator (4) rearward and position the A/C condenser (1) into the front of the engine compartment and install the retaining bolts. Tighten the bolts to 4.5 N.m (40 in. lbs.).
2. Install the upper radiator mounts (Refer to COOLING/ENGINE/RADIATOR - INSTALLATION) .
3. Remove the tape or plug from the refrigerant line fittings and the condenser ports.
4. Lubricate new rubber O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified O-rings as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
5. Connect the A/C liquid line (2) and the A/C discharge line (3) to the A/C condenser and install the retaining nuts. Tighten the nuts to 20 N.m (180 in. lbs.).
6. Install the battery support strut.
7. Reconnect the negative battery cable.
8. Evacuate the refrigerant system, (Refer to REFRIGERANT SYSTEM EVACUATE) .
9. Charge the A/C system, (Refer to REFRIGERANT SYSTEM CHARGE) .