Hi there fellas. I recently did a head gaskets,valve stem seals replacement on my '08 650i e64 with 160k km and now I get the check engine light and some vanos/timing related fault codes, car also seems to run lil rough on low rpm's.There is also a strange noise comming from the left top of the engine(see video link). What could I try before re-opening the valve covers, maybe vanos position relearn, or RAM back up or what else? Open to any advice, thanks
https://streamable.com/1lsgd
I did the RAM BACKUP and now is only one vanos related fault code left, 2A8C but still idle is not stable and check engine light is on. The strange noise from engine is still there too.
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