Strange noise on acceleration oct 2.0

[OCTAVIA2008]

Hi all

I have just replaced cambelt,tensioners and water pump 200 miles ago just had a/c regased on my octavia 2.0 aqy 2001 18" rs4 alloys
it has covered 65000 miles and has been running great until this afternoon!!

Basically when I pull away not fast just normal at about 25mph I get like a rubber on metal sort of resonation sound on and off (pulsating) bit like an old fashioned horn. At first I suspected the brakes so have checked the meat on the pads but there is plenty!!
Also flew through mot yesterday with no advisories.

Cant see how a regas could upset it but this was the last thing that was done before the sound has become evident - must be a coincidence!!!????

Any sugestions would be most appreciated.

[TrevorB33]

not the cambelt rubbing on the plastic cover is it?

[OCTAVIA2008]

No

the noise seems lower and deeper sounding

[Taxi 219]

Main external drive belt???

[OCTAVIA2008]

brand new with good tension and no contamination

[OCTAVIA2008]

Think I have sussed it, I believe it is the osr brakes allthough the pads look fine there must be a binding issue!!

I have heard of problems on the rear brakes before, and I have also heard of a modification some sort of damper!!! anyone know what this is and what it involves???

[OCTAVIA2008]

Rear brakes are mooing according to other theads anyone know the modified brake pad part number????????????

[KenONeill]

Mooing happens when you brake.

If it's a noise you've never heard before, coming definitely from one corner, look for a stone between the disc and the backplate! DAMHIKT!!!