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It really is not too difficult. I assume you have a six cylinder engine like mine. The slight difficulty I had was removing the spark plug wires. The plugs are deep in there so the wires have a long metal end. When I removed the first one it broke off at the meeting of the rubber and the metal. I had to buy a new set- not cheap. $75 at Auto Zone. Beyond that, the job is easy. Access is very easy. It has an aluminum head so you must use an anti-seize lubricant on the new plugs before you put them in.

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Q: How do you change the spark plugs on a Mercedes 300e?
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