Golf gti edition 30 rear brake pad expired , disconnect seat chime

Started to make grinding noise from rear.  Thought it was a stone in caliper, but on inspection could see the outer pad was down to the backing! Short term I have fitted some mintex rear pads for £16 off eBay.
Caliper was very stiff ends rubber boot damaged so will need caliper refurb or replacement.

Also disconnected the seat sensor as the alarm kept going off at random times during my commute!