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[MutantCav]

Ok so there is a twig in the aircon rad...the aircon rad on the car I just broke wasnt healthy...so my question, or questions is/are...

Will replacing the aircon rad require regassing the aircon or is it just water filled??

Will it matter if the replacement aircon rad comes from a manual or auto or facelift/prefacelift or are they all the same??

[Andy B]

Ok so there is a twig in the aircon rad...the aircon rad on the car I just broke wasnt healthy...so my question, or questions is/are...

Will replacing the aircon rad require regassing the aircon or is it just water filled?? .....

If I said it's not a radiator but a refrigerant condensor ..... does that answer your question? 

[Andy H]

Refrigerant fluid/gas flows through the aircon rad so yes it will need regassing.

I can't think of a good reason why GM would change the design of the condenser. The condenser on my late facelift looks the same to me as the one that was on my early pre-facelift but I would check part numbers before ordering anything.

[MutantCav]

Had a feeling that when I have removed the pipes there was green stuff on the joints...pretty much as I thought but as the cars I scrapped have all needed regassing I couldnt be sure...hmm so I need to get the gas removed first or get someone to do the job for me...

[Andy H]

so I need to get the gas removed first or get someone to do the job for me...

Legally yes. If the condenser is rotten though there won't be any gas to recover.............

[Marks DTM Calib]

All aircon condensers on the Omegas are the same and yes it will need re-gasing.

[Marks DTM Calib]

I should add, if something has gone through the rad, then there wont be any gas left

[MutantCav]

Hmmm I'm wondering now if its not that at fault...there is water leaking from the rad area (but only occasionally if the car is at an angle parked on the curb with the passengers side wheels up on the curbstone), quick inspection it looked like a twig in the aircon rad which doesnt look in wonderful condition BUT its water and the aircon still appears to work fine and be nice and cold...

[Marks DTM Calib]

lol, if you hole the aircon condenser you get a one of shot of high pressure gas...

[Tony H]

 Extreme care must be taken when disconnecting air con systems as the refridgerant can cause severe skin burns, it also become toxic if exposed to naked flames or lit cigarettes 

[Andy B]

  .... it also become toxic if exposed to naked flames or lit cigarettes 

Produces Phosgene gas.  :-?

IIRC it's not specifically toxic, but doesn't 'sustain human life' .....well, that's what I was taught as an apprentice. 

[Marks DTM Calib]

R194a is not nearly as bad on the phosgene front...R12 was very bad mind

[Tony H]

  .... it also become toxic if exposed to naked flames or lit cigarettes 

Produces Phosgene gas.  :-?IIRC it's not specifically toxic, but doesn't 'sustain human life' .....well, that's what I was taught as an apprentice. 

If I remember correctly phosgene gas was used in trench war fair in WW1 and  befor anyone comments no I'm not that old 

[Tony H]

  .... it also become toxic if exposed to naked flames or lit cigarettes 

Produces Phosgene gas.  :-?IIRC it's not specifically toxic, but doesn't 'sustain human life' .....well, that's what I was taught as an apprentice. 

If I remember correctly phosgene gas was used in trench war fair in WW1 and  befor anyone comments no I'm not that old 

Yep I was right just checked on wiki it is highly toxic and works by disrupting the blood air exchange in the lungs so basically you end up drowning in the fluid that is created in the lung tissue

[Andy H]

R194a is not nearly as bad on the phosgene front...R12 was very bad mind

I thought modern 10 year old cars used 134a :-/

407c seems to be what we have to use in buildings now, don't know what new cars are using :-/