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Experiencing Jerking and Power Loss in My BMW 1
Summary of the thread
A BMW 1 owner is experiencing jerking and power loss while driving, accompanied by a drivetrain warning light that briefly appeared. The issue may be caused by a failing ignition coil or spark plug, leading to misfires. It is suggested to check and possibly replace these components. If the problem continues, a professional diagnostic to identify fault codes is recommended.
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BMW
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1
CarlyMechanic
This could be a sign of a failing EGR valve or a clogged DPF, both common in higher mileage diesels. Start by checking for stored fault codes with a diagnostic tool—even if the light disappeared, the code may still be stored. A clogged EGR or DPF can cause jerking, loss of power, and intermittent drivetrain warnings. Have you had either of those checked or cleaned recently? Let me know how it goes or if you have any further questions!