A/C Compressor
Removing
Zexel A/C compressors have been replaced by Denso A/C compressors. See TPL 2011410.
Special tools and workshop equipment required
- Torque Wrench V.A.G 1331/ (5 to 50 Nm)
- Robinair A/C Service Unit ROB 134APF with Rinsing Device For Refrigerant Circuits VAS6337/1A
Flush the refrigerant circuit with R134a refrigerant under the following conditions:
In the event of dirt or other contamination in the refrigerant circuit.
If vacuum reading is not maintained on evacuating a leak-free refrigerant circuit (pressure build-up due to moisture in refrigerant circuit).
If refrigerant circuit has been left open for longer than normal (for example, following an accident).
If pressure and temperature measurements in the refrigerant circuit indicate the likelihood of moisture
In the event of doubt about the amount of refrigerant oil in the circuit.
The A/C compressor had to be replaced on account of internal damage (for example, noise or no output).
The procedure for flushing with R134a refrigerant is described in DESCRIPTION AND OPERATION (Refrigerant Circuit and Components).
Information for repairing vehicles with air conditioning and working with refrigerant can be found in DESCRIPTION AND OPERATION \\ .
Information for special tools and equipment when repairing vehicles with air conditioning can be found in SPECIAL TOOLS .
-- Extract refrigerant using ROB134APF, only then open the refrigerant circuit. See notes, refer to REFRIGERANT CIRCUIT COMPONENTS OVERVIEW .
-- Remove the noise insulation under the engine. Refer to Description and Operation .
-- Remove the wheel housing liner, front, right FRONT WHEEL HOUSING LINER .
Remove fan ring (vehicle-specific) for MKB BWA. Refer to [For transmission(s) 02E, 09G, 02Q] [For engine(s) BPY] Removal and Installation , [For transmission(s) 0A4, 09G] [For engine(s) BGP, BGQ, CBTA, CBUA] Removal and Installation , or [For transmission(s) 02E, 09G, 02Q] [For engine(s) CCTA, CBFA] Removal and Installation .
-- Remove the ribbed belt. Refer to [For transmission(s) 0A4, 09G] [For engine(s) BGP, BGQ, CBTA, CBUA] Removal and Installation , [For transmission(s) 02E, 09G, 02Q] [For engine(s) BPY] Removal and Installation , or [For transmission(s) 02E, 09G, 02Q] [For engine(s) CCTA, CBFA] Removal and Installation .
There is a danger of ice-up.
Refrigerant leaks out if refrigerant circuit is not discharged.
Refrigerant must be extracted before opening the refrigerant circuit. If refrigerant circuit is not opened within 10 minutes of extraction, pressure may form in refrigerant circuit due to evaporation. Extract refrigerant once more.
-- Remove the bolts (22 Nm ± 1 Nm) -1- from the A/C compressor and then disconnect the refrigerant pipes from the A/C compressor.
-- Remove the hex bolts (25 Nm) -2- and the A/C compressor.
Installing
Make sure alignment bushings -3- are seated correctly.
Pay attention to notes for installing A/C compressor. Refer to A/C COMPRESSOR, INSTALLATION INFORMATION .