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1999 S80 air-conditioning compressor stops while parking idling

Everything on the Volvo S80. Sometimes called an "executive car", the S80 was Volvo's top-of-the-line passenger car. P2 platform.
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hcampan
Posts: 22
Joined: 25 September 2008
Year and Model: 1999 S80
Location: France

1999 S80 air-conditioning compressor stops while parking idling

Post by hcampan »

Hi all,

My 1999 S80 A/C compressor stops running (clutch engaging) :

* on hot weather (actually as soon as it is hotter outside than inside)
* after several minutes of wait
* with A/C on
* engine idling (long traffic light or standing on parking)

It will come back if :

1. I turn the A/C off from the dashboard
2. I wait like 3 minutes or so (driving or not, engine on or not)
3. I put the A/C back on

But will die again soon if I stay put.

Other than that :

* all is OK while driving (and not waiting too long somewhere, like heavy traffic jam)
* liquid has been topped up this week with a specialised machine at a local garage

I've searched the forum and read some 850 having "looking alike" issues. Thermal sensor (little box/chip held outside the compressor) often comes up. I understand the compressor gets disengaged if too hot, but I also understood it could be a false positive.

Question:
I'm willing to delete it (the thermal sensor), but would like to be sure I'm not going to eventually kill the compressor. What would you suggest ?

Thanks in advance for your input.

Hubert

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Pictures to help the next guy (and myself) to see what I'm talking about
IMG_1692_--r-.JPG
↑ IMG_1692 — Right side of the engin (passenger side), all accessories pulleys, front of A/C compressor
IMG_1691_--r-.JPG
↑ IMG_1691 — Front of A/C compressor
IMG_1697_--r-.JPG
↑ IMG_1697 — Front of engine, close-up of thermal sensor (little orange box) with cables

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Tags: AC, A/C, air-conditioning, compressor, thermal sensor

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