Air Con Not Working

[jmblack]

Air Con on 56 plate 95 Estate stopped working. Had it regassed, but will not start - suspect a leak somewhere.

Any advice on most likely leak points and/or other obvious faults before I start expensive process 0f investigations?

Thanks!

[GeoffW]

Firstly, run the ACC calibration test described in the owners handbook to see what fault codes are displayed. Search this forum for further details, it's come up before.

[Finbo]

Was the car re-gassed by a Saab dealer or not?

Saab dealer fairly close to me is offering a full check for any leaks and problems and a re-gas for £49.

This may be a worthwhile first port of call to find out the exact problem.

[jmblack]

Seems that the vacuum test OK but when regassed loses gas! Suspect therefore a leak that closes under vacuum but opens under pressure!

Might try the SAAB offer - will see what my local is doing.

Thanks

[Steve440]

Probably one of the Shrader valves.

Put a blob of liquid on the charge points with the cap removed and see if it there.

Steve

[jmblack]

Tiny hole in pipe behind condensor - all fixed. Don't know why the vacuum test seemed to work..........

[phoenix]

Tiny hole in pipe behind condensor - all fixed. Don't know why the vacuum test seemed to work..........

Because the vac test tends to suck in and seal splits, whereas pressure forces them open. Had a similar issue on my rad a little while back- held vac for over 30 mins but lost charge in a couple of days.

[jmblack]

But hole was in metal pipe! You do have to take garages on trust, but sometimes...........