I own a 1991 420SEL with 188K miles on the odometer. The car runs fine, except for a little occasional rough idle. All components check out fine, so I think that maybe after nearly 200K it is time to replace the spark plug wires, which are still the original ones. Any suggestions on what wires to get? should I get OEM wires, or maybe some performaces ones, like ACCEL? the second part of my question is: How difficult is it to replace the spark plug wires on a 420SEL. I've done the job on other cars, but somehow M-Bs seem more "intimidating." I'd appreciate any and all suggestions. Thanks.

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Current Benzes

1989 300TE "Alice"
1990 300CE "Sam Spade"
1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007)
1998 E320 "Orson"
2002 C320 Wagon "Molly Fox"

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