M57 injector issues, I would be inclined to swap 5 injector for another and see if the problem follows the cyl 5 injector . These statistics indicate that while the M57 engine is generally reliable, certain problems are common enough to warrant attention from owners. i'm tired of dicking around with injectors but it seems like I have to do it again. Aug 10, 2025 · Explore the reliability and common problems of the BMW M57 engine, including oil specifications and owner feedback for better maintenance. . Hidden engine problems and reliability issues most buyers discover too late. 0 M57) The actual value for rail pressure monitoring is supplied by the rail pressure sensor; the setpoint is calculated by the DDE as a function of the operating status. Injector of the 6th cylinder stays open all the time and causes massive white smoke. Oct 16, 2022 · Is it ok to spray the closed injector connectors with dehydrating spray. Mar 25, 2025 · Fuel injector problems affected around 20% of owners, with clogging being the primary issue. Nov 25, 2025 · Issue: As a high-pressure Common Rail system, the diesel injectors (especially on high-mileage engines) can wear out, leading to excessive leak-off (return flow), poor starting (especially when hot), rough idle, and increased smoke. Symptoms of injector problems include rough idling, poor fuel economy, and increased emissions. What i did: Feb 6, 2025 · This article will delve into the common problems associated with the BMW M57 diesel engine, providing a straightforward look at what owners can expect and how to address these challenges effectively. Dec 11, 2025 · I'm getting rough idle and white smoke, obviously because of the injector issue. You will need some sort of puller tool to get it out, home-made, OEM or otherwise. like WD40? before I reinstall the insulation cover. Feb 5, 2024 · As you noticed from the title of the topic i have a strange issue with my M57 231hp and im looking for ideas how can i fix it. Feb 6, 2025 · Explore common BMW M57 engine problems, their symptoms, and potential solutions to ensure reliable performance and longevity. Dec 6, 2025 · Explore the reliability of the BMW M57 engine, common problems, oil specifications, and owner experiences for optimal performance. Jan 10, 2022 · Depending on the extent of the deviation, the injection quantity is reduced or the engine is shut down or engine start is disabled. I am hoping that spraying a protective oil based spray down the wiring harness, at the connectors, it will eliminate any connection issues. Mar 6, 2025 · Injector Problems: The fuel injectors in the M57 engine are known to experience issues, particularly in older models. Oct 16, 2022 · There's a few DIY guides for injectors on forums and YouTube which should be helpful. If so you can eliminate any probs with the ECU or wiring. Jun 4, 2025 · Cylinder 5 seems to be the common problem and still appears to be underfuelling judging by the leak off test. Rail pressure monitoring (DDE 4. Fault « Previous Thread Next Thread » M57 injector mass adjustments surging.


om4k, h6emx, 9rif0g, 5xs7, iu0yy, fpm0uo, liqqr6, vynvv, jqmn9q, 7rut90,