Problems with the air conditioning in the Audi A5 Diesel 2016: Possible defect in the solar sensor

Hi, recently had a similar problem with my 2014 Audi A3 diesel, so I'm not perfectly familiar with it, but I do have some experience. I'm not a professional, but I do a bit of car repair myself. My garage actually found a fault with the solar sensor which meant the air conditioning wasn't working properly. The repair cost me 125 euros, and afterwards the air conditioning worked perfectly again. Maybe it's similar for you. Can you write a few more details about the car? The more information we have, the better we can help you.

(Translated from German)

Hello, thank you for your answer. My A5 already has 67552km on it. My last service was about 6 months ago. There was no recognizable fault. Now it has suddenly started. Strange, isn't it? The 125 euros sounds fair if it solves the problem. Do you have any other tips on what I could check before visiting the garage?

(Translated from German)

Hey, no problem, you're welcome! Well, km and the last service don't seem to be a problem. It is indeed strange that it suddenly started! But yes, that's how it is with cars sometimes, isn't it? Well, before visiting the garage you could also check if your coolant level is sufficient. An insufficient amount can also cause the air conditioning system to malfunction. You should also keep an eye on the engine temperature. If it is too high or too low, this could also indicate a problem. If you can carry out such checks yourself, it would be great - if not, it's better to go straight to the garage. The 125 euros is really fair for such a repair, believe me. Sometimes it's better to get the problem fixed professionally before it turns into a bigger (and more expensive!) problem. Keep me posted, will you? Good luck!

(Translated from German)

Hi, thanks for the helpful information! I will check the coolant level and also keep an eye on the engine temperature. It's possible that the problem has to do with one of these things. Yes, you're right, it's better to get it fixed professionally straight away, and the 125 euros seems like a fair price. I'll get back to you when I know more. Thanks again and see you then!

(Translated from German)

The first thing I would do is have a suitable workshop check whether there is still enough air conditioning gas in the system. If there is not enough in there, your air conditioning system probably has a leak and cannot work because of it

(Translated from German)