Originally Posted by marwan
i heard from the M5 forum(i had a 2006 E60 M5) that you should only top up the oil once it reaches minimum, so I'd wait if i were you as long as i'm not getting any warning signs. When it hits low, you'll be getting a warning for sure, don't worry man!
Thanks. I went to the dealer and the SA said it was fine. He said that the best place to look at the oil level is in the iDrive status screen that is more accurate than the oil level showing in the dash.