Just picked the car up from being at the airport where it had been for 2 weeks. On driving away and then braking gently, I noticed a clunk - clunking from the back [in time with the revolution of the wheels]. Thought it was probably surface rust or a 'sticking' calliper, I braked hard a few times. 100 miles on and its still doing it so went to dealer this afternoon. Said it was probably a faulty disc and that both rear + pads would probably need replacing. Unsure whether the pads would be covered by warranty. They will contact Honda and get back to me. Car has covered 20,000 miles. Mechanic said he had had this on CR-V's but - until me - not on Civics. Anyone else had similar problem, if so what was the outcome?