Audi A4 overheating and air conditioning problems - help with electric fan troubleshooting

Hi, I had a similar problem with my 2013 Audi A6. I have a bit of experience with cars, but I'm not a professional. I took the car to my garage and it turned out that the electric fan fuse was faulty. It was pretty simple and only cost me 60 euros. One question, did you see any error message on the dashboard? That might give some additional clues. Hope this helps a bit!

(Translated from German)

Hey, thanks a lot for your answer! I haven't noticed an error message yet. I just had the car checked last week, at the current mileage of 103287 km, but that probably slipped through the cracks. I'll definitely have a look at the fuse check, inexpensive solutions to problems always sound good. Thanks for the tip!

(Translated from German)

Hi again, It certainly sounds like we can rule out the electronic side if you didn't get an error message. It could be that it's more of a mechanical issue. I think it would be a good idea to check whether the coolant pump is working properly. I had similar symptoms on my old A4 and it turned out to be the coolant pump that was faulty. It could also be the thermostat not opening properly and therefore not dissipating the heat properly. You can actually check this quite easily by measuring the temperature of the coolant after the car has been running for a while. Hopefully that helps a bit. Good luck with your troubleshooting and hopefully it's nothing too expensive!

(Translated from German)

Hello, thank you very much, these are really great tips. I hadn't even considered the coolant pump and thermostat. I'll tackle that next and hope that I can then get the problem under control. I really want to avoid the cost explosion. Thanks again for your advice, I'll keep you posted on how it goes! Thank you very much and see you then!

(Translated from German)

I have an Audi A4 Allroad B8 TDI, is giving me problems with engine temperature and air conditioning, it is curious but I turn on the air conditioning, the car does not heat up, stays at 90 °, when I turn on the air conditioning, cooled but after 5 minutes is coming out hot air and the engine temperature is rising to 100-120 degrees, turn off the air conditioning and gradually returns to 90 ° again, that could be?

(Translated from Spanish)

It sounds like your car's cooling system might be struggling to manage the additional heat load from the air conditioning system. This could be due to a number of reasons such as a malfunctioning radiator fan, a clogged radiator, or a failing water pump. Start by checking the operation of the radiator fan when the AC is turned on. If the fan is not working properly, it could be the cause of the overheating. If the fan is working fine, then you might want to have the radiator and water pump checked by a professional mechanic.