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Spark Plug Replacement Instructions

Model: Mercedes Classe E W124 - Years: 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995
Part: Spark plugs

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It is recommended to perform this maintenance with the engine cold. Before starting to remove the spark plugs, blow compressed air into the respective seats to remove any debris that could fall into the cylinders.

Then disconnect the boot, unscrew the old spark plug to remove it from the cylinder head, and insert the new one, ensuring it threads correctly before tightening it without exceeding the torque specification (a torque wrench can also be used). Reconnect the boot, and repeat the same procedure for the other spark plugs.


Updated on 13 February 2026 by ScegliAuto


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