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Compressor HVAC: Service and Repair

A/C compressor (Sanden SD 510), replacing

The Sanden SD 510 A/C compressor is no longer available as a spare part and has been superseded to the Sanden model SD 709. If A/C compressor replacement is necessary, install the SD 709 in place of the SD 510.






Fig. 1 A/C compressor SD 510 factory installation






Fig. 2 A/C compressor SD 709 factory Installation (from VIN HH 056 819)

Note: As of VIN HH 056 819, all Vanagon vehicles are equipped with the Sanden SD 709 A/C compressor. Use the following procedure when replacing the model SD 510 with the model SD 709.

Parts required:
P/N 253 260 797 A: Compressor - SD 709
P/N 253 260 708 E: A/C refrigerant line
P/N 253 260 716 A: A/C refrigerant line
P/N 803 260 749 B: 0-ring (two required)
P/N 431 260 749: 0-ring (two required)


- discharge A/C system
- remove A/C compressor belt and remove A/C compressor
- remove low pressure A/C line leading from compressor to A/C hose and discard






Fig. 3 A/C compressor SD 709 installation (conversion from SD 510)

- install A/C line 2, P/N 253 260 716 A to A/C hose 1 using new 0-ring 3, P/N 803 260 749 B
- install A/C line 4, P/N 253 260 708 E and 0-ring 3, P/N 803 260 749 B to A/C line 2
- install new A/C compressor 7, P/N 253 260 797 A
- connect A/C lines 4 and 5 to compressor using new 0-rings 6, P/N 431 260 749
- install A/C compressor belt and adjust
- evacuate A/C system and recharge
- check A/C system operation


CAUTION: Part numbers are for reference only. Always check with your Parts Department for latest parts information.