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Old 10-09-2003, 10:51 AM
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blackmercedes blackmercedes is offline
Just a guy
Join Date: Dec 2000
Location: St. Albert, Alberta, Canada
Posts: 3,492
Do a quick search on "plug gap" and "M104" and I'm sure you'll find lots of info. If memory serves, it's .8mm. Also, the correct plugs and gap are located in your owner's manual.

It sounds like your car needs a thorough going-through. You should change all the fluids and filters, including the brake fluid and coolant. Ignore the 41,000 miles. Mileage is less important than time. That car is nine years old.
John Shellenberg
1998 C230 "Black Betty" 240K

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