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How to Replace the Spark Plugs on a Mercedes W201

Model: Mercedes 190 W201 - Years: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
Part: Spark plugs

Video tutorial

Replacing the spark plugs and associated leads on a Mercedes 190 is a fairly complex task but can be done independently. Start by opening the engine bay and temporarily disconnecting the battery, then remove the intake hose.

Next, as shown in the video, disconnect the spark plug leads and proceed to install the new leads, which can be purchased from the AUTO.DOC online site. Remove the ignition coil and install a new one. Now focus on removing the spark plugs from their seats and immediately install new ones.

Finish the job by running the engine for a few minutes.


Updated on 8 September 2026 by ScegliAuto


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