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1999 S80 air-conditioning compressor stops while parking idling

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.
hcampan
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Joined: Thu Sep 25, 2008 4:15 am
Year and Model: 1999 S80
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hcampan

1999 S80 air-conditioning compressor stops while parking idling

Post by hcampan » Fri Jul 08, 2016 3:20 pm

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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