Project: 2003 BMW M3

[RawrImAMonster]

New timing chain tensioner and crush washer ordered. I could probably get away with just the crush washer, but at 130k it wouldn't hurt to replace the tensioner as well. I'm guessing the car will be a little quieter on startup with the new tensioner anyway. There is a spring inside them that provides tension until oil pressure builds up so when that spring gets weak, you can have a couple seconds of timing chain rattle when you first start the car.