purchased '12 535m. has bilstein coilovers all around. when you first start car an goes thru set-up it shows a frame that says, dianamic stability disabled. it will not stay in "sport or sport+ any longer than a step on throttle. it instantly reverts to comfort. examined front suspension, but did not see anything out of line. do coilovers cause this malfunction?? starts out fine, but goes south in 10 feet. have balanced tire pressure as suggested. scratching my head..any ideas???