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Tag Archives: N55
F30 N55 intake charge pipe
What are the chances,,,I was working on a couple of different cars and both of them were 2014 3 series with N55,,,,both have them had check engine lights on ,,,,both of them had identical faults air mass rich and lean … Continue reading
N55 eccentric shaft,valvetronic motor
Ok this is going to be a long post with a lot of pictures,,,,N55 check engine light on,,,,faults were valvetronic motor and valvetronic won’t reach its limit,,,,performed the test plan,,,operated the valvetronic motor test which passed the test twice,,,but when … Continue reading
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Tagged eccentric shaft, intake camshaft, levers, N55, roller rocker, valvetronic motor
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N55 vanos bolt broken
Do you notice anything wrong in this picture,,,take a closer look at the intake vanos unit,,,,the intake vanos unit not sitting straight,,,,car got towed in from an auto body shop,,,engine won’t start,,,,engine turned over ,,,,but no start,,,,I noticed when cranking … Continue reading
N55 cylinder headgasket leaking
We don’t see this very often on a N55 about 25k miles,,,,the cylinder head gasket leaking oil,,,,leaking from the rear of the head by cylinder 6,,,this was a pretty good leak at that,,,,running down the rear of the engine and … Continue reading
N55 blow off valve
This is a good one,,,we don’t see this to often,,,,F10 2012 N55 engine,,,,check engine light came on 1 time only,,,,fault was turbo over boost,,,,happen at 2600 rpms,,,,,we already replaced the electric pressure control valve which sits next to the valve … Continue reading
N55 high pressure fuel pump long crank
Picture of a high pressure fuel pump on a 2012 F10 N55 engine,,,customer complaints of long crank during start up,,,integrated fault memory,,,no faults,,,,I then performed fuel rail pressure test was ok,,,,performed fuel injector leakage test ok,,,performed fuel pressure holding pressure … Continue reading
N55 eccentric sensor
Picture of a eccentric camshaft sensor on a N55 F10 2012 with about 50k miles,,,,check engine light on,,,,also noticed the engine didn’t idle to good,,,it had a rough idle,,,,also the power of the engine was low,,,,when the eccentric camshaft sensor … Continue reading
135 N55 aftermarket water injection
135 BMW N55 engine with aftermarket water injection,,,,this car had a lot of aftermarket modification ,,,,,but what I was interested in was the water injection in to the intake charge pipe,,,,noticed how the T off into the windshield washer sprayer … Continue reading
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