A/C condenser replacement - which o rings?! Pic inside*

[fattail95]

Hi guys,

Replacing my air con condenser soon as my current one is past it, I found a genuine new old stock unit for £60 on t'bay which I thought was pretty good value. Question is, what seals/o rings do I need to replace? I've heard you *have* to replace these every time so I thought I'd check with you all. Here is my cars setup which should make things clearer:



I'm under the impression it's 18 and 19 that need changing, but I could be very wrong!

Thanks
Ben

[steve_earwig]

I'd have said all of them but I think Welly's your man for this as he's had some experience...

[fattail95]

I'm only replacing the condenser at the front, so only 2 pipes will be being disconnected. Why would I need to replace them all?

[steve_earwig]

I'm not sure which seals you're disturbing so my suggestions was to replace everything you disturb (rather than to dismantle your car and replace absolutely everything) But, as I say, you're probably better off listening to someone that's actually done the job.

[fattail95]

Oh I'm with you now. Thanks for the help anyway

[Doggy]

I have this tee shirt viewtopic.php?f=10&t=7606

It is 18 & 19.
I looked them up on ServiceBox using my VIN, ordered replacements, which turned out to be the wrong ones.
Having no choice, I refitted the old ones and as far as I know it's still working 5 years on, (jonsowman's dad has the car now).

They only cost coppers, so if you can, get both kinds - mine were a simple 'O' ring, the ones I got from Peugeot looked like two 'O' rings fused together i.e. if you cut them the cross-section would be figure-of-8 shaped.

[Welly]

18 + 19 is correct, they make the seal against the machined surface of the Condenser pipe connections. Most French cars use 'double' O-rings as Doggy describes.