I have a 2001 E39 M5 with the S62 engine. It rattles at startup and when I rev it to between 2000 and 3000rpm it kinda vibrates (misfire?)
I took a diagnose yesterday and found the code: "69 Plausability, engine temperature"
I've replaced the chain tensioner on the passenger side...
I posted some of these symptoms in another thread, but wanted to start my own, as I am worried to drive the car at the moment.
Two days ago I started the car from a 4 hour rest out in the cold rain. I noticed this plastic on metal sounding slap noise. It had a very 'blatty' sound to it.