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Discussion Starter · #1 ·
Just after a warm re-start in her 95 2000 my wife says heard a noise and some smoke came from under the bonnet.

I went to have a look and everything seemed alright apart from a fine coating of oil (?) on the left of the radiator fan cowling and on the left of the top hose.

The only place this could have spurted from would have been from the air-con compressor. This has two 'bosses' on the side; one has a pale green cap (marked H) and the other is uncapped but has a small hole at the end. Could fluid have sprayed from here ?? If so, what was it ??

Car starts and runs OK and climate control is working.

Any ideas ??
 

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It definately sounds like your Air-con has sprung a leak from somewhere the smoke would be the gas and the oil will be the PAG oil that lubricates the system.
But you say your sytem still works? does it still get freezing cold?
I would get an air-con engineer to check your system and top up if neccessary as if the system is low it will damage the compressor due to air passing through it (No lubrication)

Hope this helps
 

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Yup sound like your a/c decompressing. BUT the plug on the back of the compressor is a pressure relief valve so maybe it was just over pressurised. Best thing to do is take it to an ACC specialist and get them to check it out.

Steve (currently without acc on one car as the control unit seems to have died )
 

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Discussion Starter · #4 ·
Thanks for your help lads. I can see the relief valve now and as it is fresh clean I guess the oil came from there.

Interesting that the climate control still works OK and certainly blows cold. At 17 degrees the aluminium pipe is really cold and covered in condensation. I can see the compressor clutch engaging/disengaging.

Only other worthy point was that when this happened the temperature gauge was halfway between cold and hot whereas it normally barely moves itself off the stop.

Something to keep an eye on, I think...

Thanks again.
 
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