View Single Post
      07-31-2012, 02:35 PM   #3
bmwhitman
Private First Class
14
Rep
167
Posts

Drives: E90
Join Date: Aug 2011
Location: Toronto

iTrader: (0)

Garage List
I had a similar problem last year. I found out I had a slow leak coming from the valve cover gasket and damaged bolts. After I fixed this problem the top up were less frequent. Maybe 1 or 2 between changes (~9,000 km OCI).