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Old 12-05-2002, 08:16 PM
suginami suginami is offline
Join Date: Dec 2001
Location: Southern California, U.S.A.
Posts: 8,508
Re: Just repalced 6 plugs.

Originally posted by mossimmo
I just replaced 6 plugs on my 97E320 w/ 104 engine. I replaced the plugs w/ original Bosch plugs. A day after I replaced them, the car would occassional run rough, especially when cold. Upon acceleration, the car runs fine. what should I do? Do I replace the spark plug connectors? One more note, this rough idle was never there prior to the plugs being replaced.
Yes, whenver you pull the coil wires off of the plugs, it is always a good idea to replace the coil wire resistor boots. They are about $7-$10 each.
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".
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