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When I decided to gas up my Corsa C Air Con it was found that the pipes were broken. I bought the car second-hand a few years ago and as it has the very solid Izusu 1.7 diesel engine I intend to keep it for a while.

If I decide to fix the air con has anyone had any experience with this type of break - is it common? The car is year 2000 so I imagine that it could be fatigue related although as it was second hand when I bought it who knows what had happened to it in the past.

My thoughts are to take the pipes and associated parts out of the car and have breaks sleeved and welded. Does anyone have any experience of this or any ideas? This is not urgent as I live in Dorset UK which is not known for its torrid heat but it would be nice to have it fixed and working. Thanks.

Photo showing the actual breaks.


Photo showing the top of the pipes and their location.
 

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Hello and welcome to CCUK. I bought a Combo Tour 1.7Di in 2018 with the excellent engine but "I think the a/c needs a regas" turned out to be a PITA as practically everything had gone kaput on it and various "specialists" figured they'd found the problem and re-gassed only for it to dissipate days or less later. I hope you have checked the other suspects as it can get a bit irritating. I replaced the compressor (used, and I have another for backup but 2yrs good so far), that exact same pipework (£20 used from ebay and they're listed quite often) and - the pricey bit - a brand new Valeo condenser which at least came with a new drier. As my radiator had a slight leak and I had a body colour bumper waiting to replace the naff, bobbly grey one, I had everything done at once and also used intercooler and pipes which turned the Di into a DTi. The extra 10hp and slicing several seconds off the 0-60 was well worth it.

But, getting ahead of myself, I'd have a look for some good, used pipework rather than try a re-seal. I can't remember if that is high or low-pressure side, but high exceeds 150psi so it would have to be good work and the £20 used replacement should be an easy swap.
 

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I dont think anyone will want to or be able to weld those pipes. They cant be welded in the same way as the copper tubes (which are relatively easy to weld properly). At least where i live, AC repair shops never weld them, but replace them instead. Also, if you have a transition from aluminium pipe to rubber hose somewhere in the close proximity to the weld, welding will probably damage the rubber...
 

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Needs new dryer, compressor removed, oil out and replaced, all installation blown with nitrogen and maybe expansion valve removed and cleaned. All o-rings need replacing, they dried out by now. Anything else its a waste of time and money.
 
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