XSeries-forum

Last year, the airco suddenly seemed to stop (don't use the car a lot so could not tell how long it had not been working). The dealer had it for a day, charged diagnostics and could not find a leak so re-gassed. All working again.

Then again this year, I tried the airco when it was hot in April and it didn't work. Back to BMW, they spent 3 hours so far on diagnostics but still no leak found. It is going back next week for more tests, and this time they have another machine.

My worry is that if it is the internal condenser that the whole dashboard would have to come out, something like £2k in labour I read. I would not want to do that as no doubt they would damage it all.

Any thoughts what else could be causing it if no leaks can be found? Perhaps better to re-gass and see again how long it lasts which will end up cheaper than a massive bill no doubt.

Unless you use the aircon regularly it tends to leak out the gas again little by little over time , there probably isn't a leak as such.

It’s often a problem with the seals due to a lack of lubricant circulating in the system so you slowly lose gas.

The answer being to start driving a proper car again…..

I had alot or problems on my E70,
What your describing is that you have a very slow leak that your unable to detect. Most likely is from the condensor, which is located at the front. I think what you mentioned is inside the dashboard which is evaporator.