Air conditioning in VW Golf 2010 only blows warm air - Possible causes and solutions sought

Hey, I drive a 2007 VW Passat and had a similar problem with my air conditioning. In the end, I also had to go to the garage because it just wasn't getting any better. During my visit, it turned out that the coolant evaporator was partially clogged, which led to poor cooling performance. A malfunction of the air quality sensor could also be possible, but this was not the case for me. It's difficult to say when problems like this occur without looking at the vehicle itself. But this cause could also be the case for you. I would advise you to visit your garage. It wasn't a minor fault in my case, but fortunately it wasn't a complete engine failure or anything like that. Hope this helps you!

(Translated from German)

Hey, thanks for the input! That makes sense with the coolant evaporator. Can you remember how much it cost you at the garage? And did you have any other problems after that or was that the final solution? Once you've been ripped off, you tend to be more careful... Looking forward to your answer!

(Translated from German)

Hey, oh yeah, I feel your pain man. It's really annoying when you feel like you're being ripped off. In terms of cost to fix the sensor faulty, it set me back €150. So, compared to some other car repairs, it wasn't that bad. And the best part - since I saw the mechanic and fixed the faulty air quality sensor signal, everything has been running like clockwork. No further problems so far. So, take my advice - get it checked and fixed. It's worth it, believe me. Hope this helps you!

(Translated from German)

Hey, thanks for the useful info! 150 sounds pretty fair, especially if everything runs smoothly again afterwards. I think you're right, I'll just have to get it checked out and hope it doesn't get worse. Your experience reassures me a little. So I'll follow your advice and go back to the garage. Thanks again for your help! See you then!

(Translated from German)