Willis... Have '95 540iA.. bought used w/ 47,000 miles 7/31/1999.... Passed Idle quality and pressure distribution tests in Octber 1999.. Car now has @62,000 miles with mild idle roughness (not enough for a retest so soon). I'll test the car again (hopefully at dealer's expense) in October 2000. Just for thew record.. the service tech at Baron BMW in KC assures me that BMW will replace the engine if a problem developes.. of course this isn't in writing!