my cars do it ..its most likley your pads just shifting a little bit ,  do you have anti rattle shims on your model ( ebay - polo anti rattle shims )  

 

you can check the caliper bolts are still tight to re asure you ...otherwise ignore it 

Cheers steveo, that's great news and I think a record for quick responses!!!  Brings my anxiety down no end!  No anti rattle shims - apparently it's the VW Type II caliper, Bendix not the Lucas/Girling - which I think are the ones that need the shims (according to Haynes).

 

Will check caliper bolts too.

 

I'm thinking as the grease gets full of brake dust and the pads stiffen up it may go away??

Just a though, you did put the pads in the correct sides as the outer pad has a larger friction material

Cheers nige for the response.  Yes made dead cert to make sure of that although I could see how you could get confused quite easily.

The pads shouldn't move relative to the calipers as they are held into the caliper and piston with the spring clips on the rear of the pads, so it must just be a bit of movement of the calipers on the hub carrier it should get better over time

Ok guys. Thanks for responses.  I've got to the route of noise but not completely solved it.  It is nothing serious but will definitely go into details later for you.  However, before that, something else that has been plaguing my mind.

 

Having read about other noises (before the job) I greased up everything on the back of the pad with CeraTec.  Have I made a rookie error?  I was rushing a bit against the weather and didn't give it a thought.  As a starting point, I just dolloped the grease into what I have now found are called the 'spigot holes' on the back of the backing plates - before smearing it around.  Here is an example picture off the internet of a spigot hole in back of a backing plate just above the writing 'Kolben-':

 

 

The holes on mine were a bit smaller than that.  However, now I realise that is the brake material, in the hole, and am wondering if the grease can, leach or migrate, into and through the brake pad material.  Or if it can get down the back between plate and pad material leading to separation? I literally packed the hole.  Is this a big no no?

 

Possibly overthinking as usual but it is the brakes after all.

 

Thanks all.

Edited 22 January, 20188 yr by cosaw

Should be fine if it's only on that side.

 

Be a bit less kebab shop and more haute cuisine with the sauce next time.

Cheers dvderlm for the comments!  Yes I went over the top with the grease on everything.  Working in the rain and not having steady hands and not wanting any squeal - I was a bit slap dash.  Also those holes just sort of invite to have something put in them (when you don't know why they're there without looking it up).  That being said, I was very careful when it came to the discs and the friction side of the pads.  Braking is fine just don't need it to crop up once the weather gets warmer and I've forgotten about the issue!