Thread: Guidance for Spark Plug replacementr (M276) [2019 E450]
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Old 09-21-2025, 06:17 PM
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engatwork engatwork is online now
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You just have to open hood and look at what all has to be removed to get to them.

Do not replace coils until they start to fail which, in my experience, has been after 180k miles in MB.
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