Mokka temperature sensor and AC issues

My 2017 Vauxhall Mokka with a gasoline engine is acting up. Only 34740 km on it. The error memory shows a defective temperature sensor in the heat exchanger. Plus, I'm getting an error message on the speedometer, and the air conditioning won't turn on. Any ideas before I start taking things apart? Could it be the air con control unit itself?

4 comment(s)

Sounds familiar! I had a similar issue with my Mokka. Is the engine running hotter than usual, or are you just seeing the warning lights? I'm wondering if it's actually the sensor, or if something else is triggering it.

Interesting. Not seeing any overheating, no steam or anything. Just the error message and the A/C not working. You think it might be a calibration thing? Or a dodgy wire somewhere?

Mine wasn't overheating either. The diagnostics pointed to the same temp sensor issue. After chasing wires, I took it to a workshop. Turns out, the air con control unit was faulty, like you guessed. They replaced it, recalibrated everything, and it's been fine since. Might be worth getting it properly diagnosed to save yourself the trouble.

Appreciate the insight! Workshop it is. Just got the diagnosis - you were spot on, air con control unit is broken. Quoted 980€ for the repair. At least I know what's up. Thanks again!

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