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      02-27-2022, 03:43 PM   #6
ProjektAutoScott
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Drives: 2021 M340i
Join Date: Nov 2019
Location: UT

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This happened a few months back on my 2009 sedan that is now out of commission. I am now a huge advocate for replacing the injectors as a service item, they are cheap. Labor is easy. Bosch 62418. I got all of mine for $15 a piece from newparts.com, just do it.

Year: 2009

Miles: 98,000

Injector Failure symptoms: Misfires, raw fuel smell from exhaust, coked up spark plug in cylinder 8. Injector was dripping fuel when removed and pressurized.

Duration driven with symptoms: 50 miles while diagnosing and replacing coils, plugs, etc. assuming it was something else

Secondary failure: Cylinder 8 washed clean of oil, scored wall, only makes 30 PSI compression. Leak down goes straight past the rings. Now working on having the block reconditioned.

Injector failure cause or theory: Debris, age? Pretty simple devices.
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