Problems with the air conditioning and overheating in a 2012 Renault Laguna

Hi, so I'm not a car mechanic or anything, but I've dealt with a similar situation before with my 2010 Renault Megane. Basically I had the same problem, the electric fan "control unit" was faulty. I then had it repaired at my garage. All in all, it cost around 480 euros. It wasn't cheap, but it worked perfectly again afterwards. However, to help you further, I would need more information about your car. For example, what is your mileage and when was the last inspection carried out? And are you sure that the problem is with the electric fan or could it be other parts? Any additional information helps!

(Translated from German)

Hey, thanks for your answer! So, the Laguna has 115369 km on it now and the last service was a few months ago. I'm not entirely sure if it's really the electric fan, that's why I asked. But thanks for the tip about the control unit, that might be it. I'll keep you posted if I find out anything new. Best regards!

(Translated from German)

Hey, no problem, always happy to help! You could be right about the mileage, it could be the electric fan or the control unit. In my Megane, it was at around 130000 km that the control unit had to be replaced. But of course this can vary greatly from car to car. Did the overheating start after the last service, or was it the case before? If the problem only appeared afterwards, it could also be that something was overlooked during the inspection. And you could also check the coolant level if you haven't already done so. Sometimes low coolant levels also lead to problems with overheating. I once had a similar situation where the coolant had to be topped up. Everything was fine again afterwards. I hope you find the solution to your problem soon! Keep us up to date and good luck with troubleshooting! Greetings back!

(Translated from German)

Hey, great, thanks for the detailed answer! The overheating actually started after the last service, so it could be possible that something was overlooked there. I'll definitely follow your advice and check both the ECU and the coolant level. I'll get back to you when I've solved the problem or have any further questions. See you soon and thanks again! Regards!

(Translated from German)