VonOliverRacing
XC70 outside temperature sensor issues
Summary of the thread
A 2007 XC70 is experiencing issues with the outside temperature sensor, leading to an error code, non-functional AC, frozen spray nozzles, and non-working mirror heating. The problem is suspected to be a faulty sensor or a wiring issue. A similar case was resolved by replacing the defective sensor and its wiring, which restored the vehicle's systems to proper function.
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4 comment(s)
VonOliverRacing (community.author)
Yeah, the gauge is all over the place. Sometimes it reads something close to right, then suddenly plummets to something ridiculous. Did you manage to sort it out yourself, or did you have to surrender to the mechanics?
nicoweber93
Nah, I ended up taking it to the shop. They said it was probably the sensor itself, or a wiring issue related to it. I wasn't confident enough to start poking around myself, and honestly, with the AC not working I just wanted it fixed ASAP. Best to get it checked, as a faulty sensor affects other vehicle systems too.
VonOliverRacing (community.author)
Right, that's what I was afraid of. I appreciate the input! I'll get it looked at. It was a defective sensor and its wiring which they replaced for 95€. Thanks for the help!
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VOLVO
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XC70
nicoweber93
Whoa, sounds familiar! I had something similar happen in my XC70 a while back. Is your temperature gauge also reading crazy numbers? Like, saying it's -40 degrees when it's clearly not? I'm wondering if it's the same gremlin I fought.