Air con fault - can someone help

[dantheram]

As i switched on my aircon today i heard a pop then when i lifted the bonnet i heard a hissing noise like the aircon gas was coming out.

the fault code on the system was as follows -

16916 - AC refridge pressure sensor (g65) short to gnd p0532 - 35 - 00

i fear its not just the sensor as this cant explain why i heard gas escaping, any ideas?

`dan

[Endi_GTI]

Are the high and low pressure caps still on/leaking? May be worth hooking up to an zircon machine and weigh the gas inside. See if you have lost a substantial amount? If so pressure test it using the machine and see if the leak can be traced.

[dantheram]

I cant hear the engaging noise that usually happens when you turn the system on now. and when it failed it blew the fuse 26, could the compressor have blown up?

[t.small]

Could well be if it went with a pop. Spoke to a refrigeration engineer at work a few weeks ago who was fixing a unit on a van. He said the compressor went with a bang.

[dantheram]

I reckon it is the compressor, there a couple on ebay.

is it easy to fit?

[joe2612]

Reasonably easy, you need to obvs re gas the system. I may have one kicking around i'll go check..

[dantheram]

cheers pal,

cant think what else would go in the system with a pop and let all the gas out so hoping it just the compressor, this would also explain the fault code i got about the pressure sensor shorting to ground.

[dantheram]

ive replaced the g65 high pressure sensor and re ran vagcom and climatronics diagnostics.

i now have a 0318 or 00762 - the pressure switch f129.

does the system throw this when there is no gas?

seem to remember this fault being there when i had the car, gassed it and it went.