The warning light of brakes failure came on at highway exit at 65mph and the brake paddle hit the floor with no brakes. pulled over and took the car to the dealer in mid march and was told by the dealer that this is the sbc pump that failed which would have been covered by mercedes benz under service bulletin no.: 484656 but the warranty expired on 02/28/13 and since i was 15 days over this will not be covered. contacted mercedes benz of na and asked them that i bought the car used and was not told by anyone about this tsb and they should cover the repairs since the pump actually failed when the car still under extended 10 year warranty (service bulletin no.: 484656 ). they flatly refused. i than asked that if this was a known issue that the brakes could fail completely than its mercedes duty to tell the owners even if they buy used, the person just kept quiet. people can actually get hurt or die when this failure happens. at the end i was charged $2309 for something that was a known issue by mercedes. *tr