In this episode of Saturday Mechanic, Ben and Russ replace the coil springs on a viewer's Mercedes-Benz. They also explain what happens when a coil spring compressor fails.

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Who says you can't work on your own car anymore? Follow Popular Mechanics associate auto editor Ben Wojdyla as he leads viewers, step by step, through repairs, upgrades, and troubleshooting tips. Got car questions? Email Ben, and he may answer them on the show.

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