AC leak...

[rowlers]

Has the Golf down to get a the AC checked and it has a slight leak. Unfortunately they are unable to pin point where it is...

So now I'm a bit stumped (and gutted). What do I do now? Any advice?

[Redreels]

They should add a dye to the gas which will allow them to detect the leak with a UV light. Pretty basic AC stuff.
If they are working on you AC and do t have e this basic equipment, please find somewhere else

[Adam T7]

They should add a dye to the gas which will allow them to detect the leak with a UV light. Pretty basic AC stuff.
If they are working on you AC and do t have e this basic equipment, please find somewhere else

Bang on, I had an a/c leak in a brand new Discovery over 20 years ago, took the dealer about 30 mins to find the leak.

[jdoubleu]

The oil that is in the system as standard should pick up under UV light. Certainly when I had a leak, it was fairly obvious where it was coming from in a dark garage under a UV torch. Didn't need any specialist die to be added.

The only difficulty might be that some of the pipes go behind the firewall and then I assume you'd need some sort of camera that can feed behind the dash. Definitely start with under the bonnet though- that's where pipes, condenser, seals etc have to deal with the elements and stones being kicked up driving.

[rowlers]

They should add a dye to the gas which will allow them to detect the leak with a UV light. Pretty basic AC stuff.
If they are working on you AC and do t have e this basic equipment, please find somewhere else

They have done all this, the dye is not showing up anywhere that was visible. It held pressure, and held a nitrogen vacuum test, hence the difficulty in identifying a leak...

[Redreels]

So it isn’t leaking then if it’s holding pressure?

What is the actual fault you have?

[MinchCS]

So it isn’t leaking then if it’s holding pressure?

What is the actual fault you have?

They can hold vacuum and still have a slow leak. Been there - a few times

[rowlers]

So it isn’t leaking then if it’s holding pressure?

What is the actual fault you have?

So it isn’t leaking then if it’s holding pressure?

What is the actual fault you have?

They can hold vacuum and still have a slow leak. Been there - a few times

It looses gas/cooling after ~12months. So asked them to identify the leak so I could fix it.. But they can't identify where the leak is..It must be tiny...
I guessed I'm just going to have to regas again and see.how it goes...

[Redreels]

It could be natural seepage in that case. Try and use the AC more frequently to help lubricate the system. I wouldn’t be overly worried over a 12 month period

[rowlers]

It could be natural seepage in that case. Try and use the AC more frequently to help lubricate the system. I wouldn’t be overly worried over a 12 month period

Thanks.
They guys at the garage, did say that the new gas (r1234yf) is really bad for general "leakage", much much worse than the older r123 gas.

I generally leave the AC on 247, maybe I've just used it up lol