VW Passat brakes.

[Bikegeezer]

Hi,
I have just changed the front disks and pads on a VW 2.0 petrol Passat 2002. All the bolts and guide pins on the caliper and clamp are tight and torqued correctly as are the wheel bolts. The brakes seem to be working fine and stopping the car properly but when travelling slowly and applying slight pressure to the brakes there is a 'clunking' noise that seems to come from each front wheel, it only happens once each time the pedal is pressed. I've had them apart a few times now to see if I've missed anything but can't find anything out of order. Any ideas would be appreciated.
Thanks

[sidgolf]

brake-pads moving slightly in their guides,it's completely normal,as the guides will wear very slightly with use over the years.
should get the same noise if you reverse and brake.

[Bikegeezer]

Have now discovered that the pads are sided and normally have arrows on them for direction of rotation (mine didn't). Swapped them over and they are now fine.