The distributor on the W126, like any distributor on any car, plays an important role in the smooth and efficient running of the engine, and while the distributor itself should last the life of the car, there are several components on or in it that wear out, need servicing or replacement over time. The first of these is the distributor cap. The W126 distributor cap has a cover built into it and is removed as one piece. To remove the cap, remove the two bolts holding the distributor cap to the distributor. Use a large flat head screwdriver, push the screw down and give it a half turn, it will pop up when released. You can now remove the cap and wires as one piece. Check the cap for dark and charred scorching on the inside as this can mean “arcing,” meaning there may be a problem with the distributor.

You can check the rotor as well. It’s always a good idea to replace cap & rotor together.

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There are several very important notes and steps to take when performing this project. Let us know what questions you have!