Hello Golf IV 1.9 TDI 90KM. Problem as in the topic, on warm engine it disconnects the compressor. I concluded that it disconnects the A/C overheat protection switch. I have marked on the diagrams: . What is it and where is it located?

The thermal fuse is in the compressor coil, but I don't know if that's the one in question. I think the problem with you is that the fan is not cooling the refrigerant, the pressure builds up and disconnects the compressor.

As it would not cool the refrigerant, the pressure will rise and then it will disconnect the pressure sensor. The circuit on the sensor closes. Further there is a problem between the sensor and the fan (compressor) controller. The fans are working. The pressure on high does not exceed 15 bar. Added after 2 [hours] 30 [minutes]: . This is sensor F163 - air conditioner thermal switch. No. 9 in the photo. Mine was damaged. .

Climatronic Golf IV Disconnects the compressor when it heats up.

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#1 16572183 06 Jul 2017 17:50

pisior1987 pisior1987

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16572183 06 Jul 2017 17:50

Hello
Golf IV 1.9 TDI 90KM.
Problem as in the topic, on warm engine it disconnects the compressor.
I concluded that it disconnects the "A/C overheat protection switch". I have marked on the diagrams:

.

What is it and where is it located?

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#2 16572190 06 Jul 2017 17:59

ptr92 ptr92

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16572190 06 Jul 2017 17:59

The thermal fuse is in the compressor coil, but I don't know if that's the one in question.
I think the problem with you is that the fan is not cooling the refrigerant, the pressure builds up and disconnects the compressor.
#3 16572201 06 Jul 2017 20:39

pisior1987 pisior1987

Level 21

Posts: 677

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Rate: 349
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Post #3
16572201 06 Jul 2017 20:39

As it would not cool the refrigerant, the pressure will rise and then it will disconnect the pressure sensor. The circuit on the sensor closes. Further there is a problem between the sensor and the fan (compressor) controller. The fans are working. The pressure on high does not exceed 15 bar.

Added after 2 [hours] 30 [minutes]: .

This is sensor F163 - air conditioner thermal switch.
No. 9 in the photo. Mine was damaged.
.
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Climatronic Golf IV Disconnects the compressor when it heats up.

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