I'm getting a tappet noise when I start my 2000 M. The odd thing is, it is not consistent. The car can sit over night or for long periods and no noise. Or, it may tick after a short down time and do so a couple of times. You never know! The noise quietens after a couple minutes/miles. Car has 42,500 miles and runs strong. It just has this tick or no tick thing happening. Any advice welcomed.
