View Single Post
  #13  
Old 01-31-2021, 02:50 AM
andrewwynn's Avatar
andrewwynn andrewwynn is offline
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,817
andrewwynn will become famous soon enough
I just fixed a very very similar problem on my client's e90.

I was getting cam over retarded errors, which usually means cam sensors. Replaced both and no change, but started to get a specific vanos related code for intake cam.

With 150k miles, would not be surpassing to need to replace the vanos solenoids, but didn't want to part canon just yet, so I took out both and cleaned and swapped when I put back in.

The error returned but stayed on intake cylinder.

My wife's e53 with m54 had a very similar set of vanos errors and I read can be oil filter related so I bought a new filter and holy crap the old one was toast! Clearly was done oil sneaking around the filter.

Wife's error cleared immediately so I did oil+ filter on client's N52 as well hoping for the best.

Bummer: no luck and now I'm getting misfires on cylinder one.

So I get a new code still related to vanos but was specific. I duck duck'd the code and found a YouTube video showing how the oil filter CAP can break where it will allow oil to bypass the filter.

Replaced the cap, problems all vaporized!

So: pull your cap: if the basket that goes into the filter media wiggles side to side it's shot!

Your symptoms sound extremely similar to my client's e90, and we both hope that's the problem!
__________________
2011 E70 • N55 (me)
2012 E70 • N63 (wife)
Reply With Quote

Sponsored Links