Thread: Coils & Plugs
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      10-22-2018, 09:10 PM   #1
rick propas
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Drives: 2011 BMW 1M-Valencia
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Coils & Plugs

I am looking for definitive information on best practice for maintenance of coils and plugs.

With all due respect I am not seeking opinions so much as hard data based on professional experience.

Thanks in advance.
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