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The plugs were installed by an independent Mercedes mechanic. He's always used OEM parts for all the work I had done to it so I have no reason to think that the plugs are wrong.
The car gets driven rarely, but each drive is fairly long. Usually at the very least 30-50 miles each time, and at times I may drive it up to 150-200 miles in one go.
I believe the gas in it is no more than 3 months old to my memory. Usually 98 octane, and at worst 95 will go in.
Exhaust smells and looks fine. However I noticed after driving it a while in hot conditions I hear the fuel pump whizzing louder than usual.
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Smoke Silver 1994 E220 Coupe Automatic
0 kilometers 6 September 1994
100,635 kilometers - 6 September 2010
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