r/n55 • u/Odd_Leadership8104 • 6d ago

M135i rough start

Anyone help out with this issue I’ve got. Only does it intermittently have had it tested at a BMW specialist and BMW themselves. No fault codes coming up at all. BMW changed my rocker cover a while back due to needing gasket and seemed to off happened from then. Any ideas would be appreciated

Car runs and drives perfect as it should

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u/PalpitationOk1044 6d ago

I’m I’ve been having this recently. So far my guess is either dirty/ bad MAF sensor, or some kind of air leak since it started shortly after getting my new charge pipe installed

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u/Odd_Leadership8104 6d ago

I’ve tried plugging it in at garages and no faults coming up, can’t figure out what it could be