DS3 Themostat

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Mde80
Posts: 3
Joined: 22 Nov 2025, 20:26

DS3 Themostat

Unread post by Mde80 »

2014 DS3 THP 156
Removed thermostat housing and was baffled by this connector for the temperature sensor and the lack of bleed screw.
20261013_185312.jpg
Is this OEM? How do I disconnect it?
The replacement I have has both sensor and heater linked into a connector. Any ideas ? Thanks
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20261013_185451.jpg
PaulC5
Donor 2024
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Joined: 06 Jun 2023, 15:26
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Re: DS3 Themostat

Unread post by PaulC5 »

On our 2010 C3 there was a Citroen modification around 2014 that removed the bleed screw and fit another temp sensor as the original ones were faulty causing the fan to run continually. Also a bit of extra wiring was used and the old sensor left in place but not connected. It was a quick cheap fix for Citroen. Possibly this has been applied to your car.
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xantia_v6
Forum Admin Team
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Joined: 09 Nov 2005, 22:03
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Re: DS3 Themostat

Unread post by xantia_v6 »

I think that you maybe have the wrong replacement, there were many variations, especially if you add in the ones for the mini/BMW applications.

You may find some extra information in the post here viewtopic.php?p=561113#p561113 and a few following.