Airco failure

[pvr]

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.

[Leslie]

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.

[X5Sport]

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

[H4MP]

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.

[pvr]

You are right, I meant the evaporator.

They finally found the leak today - it is the condensor which has the leak, £1400

[X5Sport]

Breaks My Wallet

Must be a non-badged supplier of that part surely. BMW don’t make them. But then you need a good Indy to fit it.

[Greydog]

X5 is right these are brought in parts 2 years ago I had the Condenser and dryer changed on the E70 by a mobile AC specialist on my drive Condenser (Denso) was £65 Receiver/Dryer (Mahle) £30 ( dryer changed on specialists advice) system vacuum tested and recharged £45 Labour £320 plus VAT tea and biscuits
BMW do like to charge for the box they put the parts in even worse when they may well use the same mobile specialist he told me he does a lot of work for Garages

[Leslie]

Time to find another garage lol