Aircon noises

[tchalikias]

Hello all,

I have a question about the Clio's aircon.

When you turn it on, apart from the normal 'click' noise from the compressor, I can hear, for a few seconds, a sort of 'rattling' noise, like the sort a clutch bearing makes (which I believe to be the compressor clutch). My mate's Twingo makes the same noise - its best heard with the windows up from inside the cabin. Sometimes the noise is very unnoticeable, sometimes its louder.

Also, with the aircon on, there's a sort of 'whooshhhhhh' noise from behind the dashboard - I'm not talking about the cabin fan. Increasing the engine's rpm increases the 'whoosh' noise.

Now my old Megane used to make noises with the aircon on, but I remember it was extremely quiet when brand new...

Are these noises normal? The cooling performance is fine.


After that, it all sounds normal...

 

[Arran]

Mine does the same. It keeps loosing gas. I've currently got some UV dye in the system ready for it to be re-checked at Renault Wolverhampton for leaks. It is very noisy and I think something isn't quite right with it. It has been regassed twice. The car is just over 18 months old.

 

[tchalikias]

It makes the exact same noises? Do the noises stop after a while? Or are they present for as long as the aircon is on?

I had the dealer regas my aircon just to check the freon levels... everything was ok.. so it's not a leak.

 

[Arran]

It makes all kinds of noises. Wooshing noises, wering noises, ticking noises. All the time it's on too. It does get cold, just not that cold.

 

[tchalikias]

Thank god for the warranty then.. I was thinking of asking for a new compressor, but first I want to make sure that these noises aren't part of the package.

I don't like the idea of replacing parts on a brand new car..

The tech at the dealership said that the 'rattle' noise when starting the aircon is pretty much standard..