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BMW 5 Diesel Engine Issues: Unsteady Idle and Knocking Noise

Hello everyone, I own a 2011 BMW 5 with a Diesel engine and 300,000 km on it. I've been experiencing some issues with my car: the engine is unsteady, there's a clicking/knocking noise, and it shakes while idling. My Carly diagnostic tool showed me the error fault code: 2A6B00 smooth regulator cylinder 6. The problem is that the engine has a bad idle and knocks when I start it cold, but it returns to normal after warming up. Can anyone explain what this fault code means and suggest any solutions? Your help would be greatly appreciated!

A 2011 BMW 5 Diesel engine with 300,000 km is experiencing unsteady idle and a knocking noise, particularly when cold. The diagnostic tool indicates fault code 2A6B00, pointing to an issue with the smooth running control of cylinder 6. Possible causes include a malfunctioning fuel injector, spark plug, or ignition coil. Suggested solutions involve checking and possibly replacing these components, with professional assistance recommended if needed.

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The fault code 2A6B00 indicates an issue with the smooth running control of cylinder 6, which could be related to the fuel injector, or glow plug. Start by checking the fuel injector for cylinder 6 to ensure it's not clogged or malfunctioning. You can also inspect the glow plug for any signs of wear or damage. If you're not comfortable doing this yourself, it's best to have a professional mechanic take a look, as this could affect engine performance and safety. Let me know how it goes or if you have any further questions!

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BMW

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