Defogging Sensor Troubles in 2011 Volvo S60 Diesel Impacting Heating/Cooling and Mirror Defrost

Hey, sounds quite a bit like something I faced with my 2014 Volvo V60 diesel. The culprit in my case was indeed a dodgy cable connection to the heating/cooling unit and mirror defrosting system, not the defogging sensor itself. So here's the skinny, during my last trip to the garage, the mechanic detected an issue with a cable connection that was hampering my car's ability to defrost and control the temperature properly (same as yours). He showed me, it was clear that the cable was not transmitting the right signals due to wear and tear. Was it a serious issue? Absolutely yes. It had a direct impact on visibility (especially in winter), and the comfort of driving too. The solution involved checking all connected systems and then replacing the defective cable, doing it that way nipped it in the bud. So, in your case, it might not strictly be the defogging sensor itself, but related to the cable connection that feeds it and other systems. Definitely worth getting a good mechanic to go in and check it out for you. It's better to get it sorted sooner rather than later as it’s a crucial system, you definitely don't want to mess around with. Best of luck with it!

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Hey, wow, you described my situation to a T! The cable connection issue surely sounds like the likely culprit here. Thank goodness it's not the defogging sensor, I was worried there for a bit. Do you remember how much you had to shell out to get this cable problem fully sorted? And has anything else come up related to this since the fix? Wish me luck, hopefully, my beast will pull through! Cheers!

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Hey there! Good to know we're in the same boat. As for the cost, I splashed out around 155€ to rectify that pesky cable connection issue - not too bad if you ask me, considering the improved visibility and comfort on the road after. Post-repair, the defogging sensor hasn't given me any trouble. In fact, things have been quite smooth. My Volvo now runs like a dream, even in frosty weather, so that's a win! Good luck with your fix. Fingers crossed your Volvo pulls through just as brilliantly! Cheers!

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Brilliant! That's exactly the kind of first-hand info I was after. Looks like a trip to the mechanic won't be as wallet-battering as I feared, and the perks certainly seem worth it. It's comforting to hear your car's running smooth post the repair. I'll get on top of this pronto. Cheers for the help, I'm now a little less puzzled Volvo owner. Good day and best of luck on the road, comrade!

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