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Ignition Coil Replacement

Model: BMW Serie 3 E46 - Years 1998-2006
Part: Ignition coil

If the engine runs unevenly after starting and the check engine light comes on, you can check the error codes to understand the nature of the fault: the diagnosis indicates a misfire in the third cylinder, which may be caused by a faulty ignition coil that needs to be replaced. It is recommended to perform this maintenance with the engine cold; start by removing the cover on the engine where the oil cap is located; locate the ignition coil for the third cylinder, disconnect the power connector, and remove the boot that integrates with the ignition coil to replace it with a new one.

Updated on 17 February 2026 by ScegliAuto

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