Replaced A/C Compressor, condenser, drier and now the A/C clutch stays engaged after turning it off?

2004 BMW Z4
197,000 MILES • 3.0L • 6 CYL • 2WD • MANUAL
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K BOOTHE
  • MEMBER
  • 1 POST
When I removed the old compressor, I found that the power wire going to the AC clutch's insulation had melted off. I replaced the above items, vacuumed down and recharged the system. A/C working except that when I turn A/C off on the switch, the A/C Clutch stays engaged and turning.
Aug 16, 2022 at 10:10 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,224 POSTS
Yep, this happens when HVAC controller goes out. To be sure we should do a CAN scan. You can get a CAN scanner from Amazon for about $30.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is a scanner link:

https://amzn.to/3o41KcZ

If the scan says it is bad, install a new unit. This car has an internal compressor valve. How can you tell if the compressor is engaged if there is no clutch?

Aug 17, 2022 at 5:49 AM
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