Who knows about S2 air con?

[LHD_Kid]

'Tis the season for getting the air con up and running...
I had to have one new pipe made up, and recharge, so after 2 weeks of running it is still fine...
Working as it should APART from a really annoying noise coming from the passenger area. appears to be coming from the drier area.... I can only describe it as exactly the noise a toilet makes as it fils up after flushing.... a sort of hissing noise which changes pitch...
What is it likely to be, and what can I do to stop it (apart from turn up the radio... )
Cheers guys....
Chris

[iain1067]

are all the drain holes/tubes clear??? oh and have the leads arrived yet??

iain

[LHD_Kid]

Now, I have read a litltle about drain holes, but don't know where they are, I can't see them on any schematic drawings....
Am I right in saying that to clean them you first need to discharge the system? Also, are they something that can be cleaned? or do they have to be replaced?
and yes, leads turned up no problem.... Thanks
Chris

[Skull]

if you are talking about the condense drain, there is only one hole on the middle/bottom/back of the klimabox. the pipe goes into the engine bay i think. the noise you are hearing should be an "air flow deflecting plate" opening and closing.

[LHD_Kid]

this maybe what it is, but the noise is definately not a plate moving, it is liquidy, mixed with air... like you are sucking up the last of a drink through a straw......
I cant believe its normal, as it will drive me nuts, and mean I will never use the aircon.... Is this tube from the klima box easy to get at? do I remove and clean out or what?
BTW, I have tha electronic ACC 3B coupe.......
cheers
Chris

[Skull]

not very easy, but u can get to it. remove the passenger side glovebox, reach with your hand behind the klimabox on the bottom side (u know where the ecu is).

[LHD_Kid]

I have just found that tube on my schematics.... I think I might have a more definate problem, the noise is coming from higher up than that...
I think it might be a leak from the evaporator...
Has anyone ever tried to change one? Maybe it is just a seal that has gone, or a joint needs tightening.....
Is the evaporator something which could be fixed by a radiator repair shop or the like?
I reckon this is going to be big trouble...! But worth a go...

[BlackBullet]

I have just found that tube on my schematics.... I think I might have a more definate problem, the noise is coming from higher up than that...
I think it might be a leak from the evaporator...
Has anyone ever tried to change one? Maybe it is just a seal that has gone, or a joint needs tightening.....
Is the evaporator something which could be fixed by a radiator repair shop or the like?
I reckon this is going to be big trouble...! But worth a go...

How about your pressure???
Or the efficient from your A/C decreese? If you have some problem with the Gas pressure, you should have a problem in your evaporator.

I am trying to change my evaporator... but I stopped because I have some problems to put out the hole klimabox... Skul23 is trying to help me either!

normaly the leakage is from a oxidation on it... and we don´t have anything to do... just change it... but... at my new used one , I have made an Anodization, that is a Termal Treatment on the Aluminium... to prevent others oxidation!
Now, I will take of my heater too, and I want to make the same Treatment on it!

If your gas pressure is OK, than you might have wather on the klimabox... Take a look at the firewall on a Hose with a "duck peak end", normally there should be obstructed! As Skul sad!

Cheers,