Air con making a whiring sound

[matthew.f.young]

Morning!

My aircon is making a really annoying whining / whiring noise whilst driving slowly.

If I turn the aircon off and leave the fans on the noise stops.

Any ideas?

if it helps, its a 10 plate 2 Tsi GT?

Cheers

Matt

[Mr OCD]

Morning!

My aircon is making a really annoying whining / whiring noise whilst driving slowly.

If I turn the aircon off and leave the fans on the noise stops.

Any ideas?

if it helps, its a 10 plate 2 Tsi GT?

Cheers

Matt

I bet the aircon clutch is slipping ... check the bolt that holds the clutch on to the splines on the aircon compressor.

Left hand side of engine bay... look down past the auxillary belt ... and shine a torch...

Start car, turn on aircon and watch the centre bolt on the pulley - does it spin at the same speed as the pulley?

If not - you have a problem.

[tommy]

Morning!

My aircon is making a really annoying whining / whiring noise whilst driving slowly.

If I turn the aircon off and leave the fans on the noise stops.

Any ideas?

if it helps, its a 10 plate 2 Tsi GT?

Cheers

Matt

I bet the aircon clutch is slipping ... check the bolt that holds the clutch on to the splines on the aircon compressor.

Left hand side of engine bay... look down past the auxillary belt ... and shine a torch...

Start car, turn on aircon and watch the centre bolt on the pulley - does it spin at the same speed as the pulley?

If not - you have a problem.

Nice one - I have that problem too, will check that out later! thanks!

[matthew.f.young]

Thanks buddy!

[Mr OCD]

Thanks buddy!

Did you check it?

If there is a problem, you can buy new clutch / bolt for £30... most garages will want to replace the compressor which is ££££!

[matthew.f.young]

is it just a case if tightening it up if it has come loose?

[Mr OCD]

is it just a case if tightening it up if it has come loose?

If it's come loose, tightening may fix the issue. But two points here to consider...

- the bolt has come loose and worn the threads on the bolt, therefore tightening it up (if possible as the shaft will just spin round upon tightening) will only fix the issue short term.

- If the bolt has come loose, it is likely the clutch splines have sheared off hence the noises. Therefore you will need a new clutch and bolt.

If anyone needs a clutch, let me know as I have a spare.