After an absence of 6 weeks I returned home the other day and started driving my CR-V again (2012 EX 2.2 diesel manual, 31,000 miles). After a 6 week lay up the brake discs are brown with surface corrosion which soon disappears with use. However, I noticed today that the area of the disc "cleaned" by the pads on the rear offside is markedly narrower than that on the rear nearside (further away from both the outside and inside edges of the disc. Feeling the slight lip near the edge of the offside disc seems to indicate that previously the surface area of the pads was the same as the nearside. Unless reduced pad area is a means of indicating wear, I suspect a damaged pad and intend to replace all the rear pads, but before I do has anyone experienced anything similar? (Makes a change from cleaning up corrosion between the (alloy) caliper/(cast iron) suspension arm joint on the old Citroen).