Aircon sounds like a leaking gas canister when running.

61 vRS, has it died over the winter?

Dodgy compressor or condensor.

Or you have a leak.

When the gas gets low they make some strange noises.

Your under warranty, get it booked in before more damage is done.

Had it on yesterday for a few minutes, didn't sound too well so looks like it's gonna have to go in.

Mine did this & I suspected the compressor - however, I was (relatively) pleasantly surprised to discover that it had run low on gas & is now nice & cold (and quiet) again.

I'd get it looked at asap though - like Silver1011 says, you don't want to risk causing any more damage.

Good luck..

Edited 16 April, 201313 yr by ethel

Not using it all until until it's been looked at.

Shame, as we are going away this weekend and sods laws says it will be nice and warm! Although

I can't complain if the weather is nice. The kids will have to roast in the back!

Mine did this & I suspected the compressor - however, I was (relatively) pleasantly surprised to discover that it had run low on gas & is now nice & cold (and quiet) again.

Just curious but did you have a leak too? Or did the re-gas cure the problem?

I was led to believe that the A/C system is sealed and that the only way the gas can escpae is if there is a leak?

Therefore a re-gas is only a short-term solution until the leak is discovered and fixed?

Just curious but did you have a leak too? Or did the re-gas cure the problem?

I was led to believe that the A/C system is sealed and that the only way the gas can escpae is if there is a leak?

Therefore a re-gas is only a short-term solution until the leak is discovered and fixed?

Hello,

I believe there could well be a leak somewhere - the garage know the car & have put dye in the system to trace any leakage.

A quick squint under the bonnet has not uncovered any tell-tale colouring (yet) but I'll take it back to them in a month or so, so's they can have a proper look for any traces.

To be honest, I'm just glad it's not a total failure of the compressor as I'd originally suspected - they're notorious for going kaput I believe..

Hello,

I believe there could well be a leak somewhere - the garage know the car & have put dye in the system to trace any leakage.

A quick squint under the bonnet has not uncovered any tell-tale colouring (yet) but I'll take it back to them in a month or so, so's they can have a proper look for any traces.

To be honest, I'm just glad it's not a total failure of the compressor as I'd originally suspected - they're notorious for going kaput I believe..

You won't see the dye, it is visible under UV light only.

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Hello,

The noises you are talking are something like these ones?

http://www.youtube.com/watch?v=XXFm6i9Xfc0

My car always do this sound when the ignition is on, with or without air con switched on.

Is this normal? Gas problem? Compressor problem?

My father has a Superb that makes the same sound, but both aircon's work very well.

Thanks,

Regards,

Tiago Matias

Tiago, the noise mine made was more a grumbling one from the engine bay accompanied by a kind of hissing, gurgling noise from the vents - not the knocking sound as heard in your video - not sure what's causing that I'm afraid.

As for the leakage dye, I'll have to dig out my black lights I guess..!

;-)

Just curious but did you have a leak too? Or did the re-gas cure the problem?

I was led to believe that the A/C system is sealed and that the only way the gas can escpae is if there is a leak?

Therefore a re-gas is only a short-term solution until the leak is discovered and fixed?

Yes they are sealed systems. Some leakage occurs over a number of years through the rubber hoses which requires a re-gas, but they are essentially sealed systems.