as above the yellow rust is common on any car mostly this will happen when the discs get wet
as for squeaking the problem is the slider pins
will need to be greased and the back of the pads
most garages just blow of the dust off and slap the pads in job done
the slider pins and back of the pads should have some new grease
and the pad holding clips should be replaced
and also have some grease in them
this stops the pad from sticking and making noise
this cures it most of the time
we do have a how to for pad removal
http://www.vxoc.org.uk/forum/Thread-How-...oval-5Door
you can use this on the back of the pads
and holding clips
http://www.ebay.co.uk/itm/190798339477?_...EBIDX%3AIT
and this on the slider pins
http://www.ebay.co.uk/itm/281474187432?_...EBIDX%3AIT
as for squeaking the problem is the slider pins
will need to be greased and the back of the pads
most garages just blow of the dust off and slap the pads in job done
the slider pins and back of the pads should have some new grease
and the pad holding clips should be replaced
and also have some grease in them
this stops the pad from sticking and making noise
this cures it most of the time
we do have a how to for pad removal
http://www.vxoc.org.uk/forum/Thread-How-...oval-5Door
you can use this on the back of the pads
and holding clips
http://www.ebay.co.uk/itm/190798339477?_...EBIDX%3AIT
and this on the slider pins
http://www.ebay.co.uk/itm/281474187432?_...EBIDX%3AIT