Ali10
BMW 5: Problems with engine performance and idling
Loss of engine power
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Check engine light on
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Unsteady engine
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Shaking while idling
(Translated from German)
3 comment(s)
CarlyMechanic
@Untitled
No start/crank 2012 BMW 550i had vehicle diagnostics done, shop says cheap battery, power distributor needs replacement, and battery registration. 2nd cause could be starter needs replacement. I thought diagnostics you would know exactly what the
problem? Charged $619 for two diagnostics
Start by replacing the battery with a high-quality one and ensure it is properly registered to the vehicle. This can often resolve electrical issues. If the problem persists, consider checking the power distributor and starter as suggested. Let me know if this helps or if you have any further questions!
Check the fuel injectors for cylinders 4 and 6. They might be clogged or faulty, causing the misfires. You can try cleaning them or swapping them with injectors from other cylinders to see if the problem moves. Let me know how it goes or if you have any further questions!