Location of A/C compressor clutch relay

2008 VOLKSWAGEN PASSAT

160,000 MILES • 2.0L • 4 CYL • TURBO • 2WD • AUTOMATIC

ARY90

MEMBER
2 POSTS

Don't have owner's manual and while researching online found it's the relay marked 384 but there is no relay marked with that number in the relay box. Thanks!

Dec 21, 2019 at 9:33 AM

KASEKENNY

✓ASE Certified Mechanic
18,907 POSTS

I don't see an actual compressor relay which means your vehicle is not equipped with a traditional relay.

Your vehicle has a climate control module and the compressor regulator valve that the control module controls. This valve regulates the pressure by cycling the clutch on and off.

If your compressor is not coming on then we need to suspect the control module. Does the AC button on the control panel light up? If so, go and check for power at the compressor. If you don't have power then the module is most likely the issue.

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Dec 22, 2019 at 8:54 AM

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