DS3 Outside Temperature Sensor Issue

Hello. I have a 2014 Citroen DS3 with a gasoline engine. My outside temperature sensor seems to be malfunctioning. I'm seeing an error stored in the error memory, the air conditioning won't switch on, the spray nozzles are frozen at cold temperatures, and the mirror heating isn't working. I suspect the cable or plug connection of the component is defective. Has anyone experienced something similar?

4 comment(s)

Greetings. I had a similar issue with my 2017 BMW 3 Series. The symptoms you describe mirror my experience. Before condemning the sensor itself, have you checked the wiring harness and connector for corrosion or damage? It's akin to checking the foundation of a house before blaming the roof for leaks.

Thanks for the quick response. Yes, I visually inspected the connector and wiring as far as I could trace it without dismantling half the car. I didn't see any obvious corrosion or damage. Is there a specific area of the harness that's prone to failure on yours or similar setups?

Indeed. While my BMW differed in layout, the vulnerability lies in the connector itself. Even without visible corrosion, micro-fractures or loosened pins within the connector can disrupt the signal. Given your symptoms, a professional diagnostic check is advisable. In my case, the faulty connector led to similar cascading failures. It's best to consult a workshop for pinpoint accuracy before replacing parts indiscriminately.

Understood. I appreciate the advice. I'll take it to a shop for diagnostics. It seems like the most sensible path forward. Turns out it was the sensor cable harness, and the repair cost 95€. Thanks again.

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