Brake Disc Caliper problems of the 2009 Volkswagen Jetta Sportwagen

The contact owns a 2009 Volkswagen jetta sportswagen. While the unoccupied vehicle was parked with the engine and emergency brake engaged, it rolled unexpectedly . The contact was able to enter the vehicle, apply the brake pedal and stop the vehicle from moving. The contact detected the rear brake calipers were stuck which caused the emergency brake cable to disengage. The vehicle failure was not diagnosed nor was it repaired. The manufacturer was notified of the problem. The approximate failure mileage was 67,000.

Excessive wear in brake pad at under 15,000 miles. Both front pads are approx 75% of 'new', the right rear pad 75%+ of 'new', but the left rear (lr) is now very close to metal-on-metal with rotor. Dealer service on 3-10-11 @ 14, 281 miles indicated 3mm remaining on rear (didn't specify left or right or both, but estimate was to replace both). When I went to replace rear pads (now @ 14,990 miles), is when I found out that only the lr is affected, and more importantly it is completely worn. Lost approx 3mm in 700 miles of easy driving? internet searches turns up multiple similar owner complaints of unreasonably excessive (in terms of miles under easy driving) and uneven (in terms of only one pad being affected) wear in pads, possible having to do with caliper 'sticking' (whether in connection with hand brake or otherwise). Independent foreign auto service facility confirms that there is more of a problem than just with the pad itself.