Quote:
Originally Posted by mr_robot
Changed my Vanos O-ring seals. Putting them back in was a PITA.
The smaller o-rings didn't seem that bad but the Big outer ones maybe a little as it took very little force to pop them out, possibly creating a vacuum leak. Didn't have any oil leaks around it though.
After cleaning and putting the new rings on, it took quite bit of force to push them back in but at least I know they are in there tight now.
No noticeable improvement was noticed, trying to see if this will help with the cold start random misfires.
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There is a trick to getting the vanos seal in: cut the old o-ring in bro about 12 pieces at sharp angles and stuff the pieces in behind the new seal as you work your way around. Not ∞ easier but it rounds to it. I destroyed the first seal trying too install until I figured out this trick
Holy crap I found the photo! The red handle from the super sharp diagonal wire cutter I used to make the o-ring snippets
The vanos seal fix will improve power delivery over the RPM range should have little to no effect at start.