Rattle with air con

[mph999]

Hey Guys,

Any ideas on this ... (2008 1.8 MK3)

Intermittent, but with the air con, there is a rattle, almost sounds a bit like a diesel. Noise disappears as the compressor kicks in and out.

It's most noticeable if you listen low down just behind the drivers side front wheel.

I've had a stethoscope on :

Alternator
Tensioner
Idle pully
Powersteering pump
Water pump
Compressor
Engine Block
Exhaust

Nothing noticeable on any of these - even when it's not doing it I'd have expected one of these to be a bit noisy

Vid shows issue best example about 20 sec in, compressor kicks in at 23 sec

https://youtu.be/iIjAQDgkTqg

Thanks in advance

Edited by mph999 on Thursday 24th May 20:13

[Vin]

Hi looked at your video a couple of times and found it hard to hear any issues. Maybe if you put the phone in the engine area. Is there any issues with the car or air con? Is the air con working okay? I have had a couple of compressors go as they have a clutch system in the back. That would most likely be the issue i assume.
vinnychoff