Quote:
Originally Posted by M5KEITH
It turns out I have cylinder 6 misfire not sure what the code is but this is this is with new spark plugs and coils.
What else has anyone else seen with their cars?
Bad injector or vacuum leak perhaps?
I am hoping I heard some good news tomorrow from the shop.
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I would swap the coils as others have suggested. Going over what you said on your initial post, an expansion tank leak may have damaged your injector and is just coincidence that is showing up now. When my tank broke the leak wasn’t terrible but was enough to touch the injectors. Service tech recommended 1 replaced since BMW will replace if any coolant touches the injector. They ended up replacing all 4 on that side. I didn’t have any codes or rough idling before or after the tank leak.