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23/11/2020 9:24 pm
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2009 BMW 328i 85000 miles.
Car was running rough, check engine light came on. P0304 code. I changed the spark plugs and ignition coils. Noticed small amount of oil on plugs #3,4 and 5. Car runs great now. Should I just drive car and see what happens or get it serviced for valve cover gasket. (That would be out of my DIY comfort zone) Thanks
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24/11/2020 2:37 am
I would get the valve cover gasket replaced now. If it's leaking now, it will continue to leak and get worse as you drive it more. When oil seeps into the spark plug wells, it will cause misfires because the oil will prevent the the ignition coils from firing the spark plugs correctly. Get it fixed soon.
