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Old 05-08-2002, 01:16 AM
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Join Date: Jul 2001
Location: Mexico
Posts: 550
What kind of Spark Plus do i need

I have a 87 300E. I want to change the spark plugs
Can someone tell me what kind I need, and how to change them

87' 300E champagne - Euro headlights and corners, 8-hole rims, 140,000miles/220,00km.
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Old 05-08-2002, 01:27 AM
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Join Date: Nov 2000
Location: Vernon, CT
Posts: 1,845
I don't own a gasoline Benz, but my money is on Bosch being the OEM plug for any gasoline Benz.
OK, I just looked up your car in the Fastlane catalog and the plugs are Bosch, however which Bosch plug depends on what month your car was made. One plug is for cars built BEFORE April '88 and then another is for cars built from May onward.
1994 MB E320 Coupe (199,500 mi)
1992 MB 190E 2.6 (173,000 mi)
1983 Porsche 911SC (148,000 mi)
2004 Volvo V70 2.5T (198,000 mi)
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Last edited by rickjordan; 05-08-2002 at 01:32 AM.
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Old 05-08-2002, 01:47 AM
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I have a '86 300E...........Use the recommended plugs, or cross reference them to Autolites or AC, and save yourself some money!! Don't even think about "platinum bull****" plugs! Only copper core for our cars! I just did my own test.....I purchased the Bosch Platinum core plugs and my car idled worse. Went back to the copper cores and......... ,smooth as silk! The best part of my own test is I brought the plugs back and got my money! I'll get you the Autolite p/n if you need it, that is what I use. Why pay more?
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Old 05-11-2002, 12:56 AM
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Join Date: Feb 2000
Posts: 2,141
6 cyl. motor -> Bosch H9DC0. Std. gap is .032. Some say a wider gap yields smoother idle.
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC

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Old 05-11-2002, 01:02 AM
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Join Date: Apr 2001
Location: Baton Rouge
Posts: 485
Go with the Bosch and stay away from the auto-zone cross referance plugs, they last longer and are the factory equipment.
euro 287
Mercedes Technician 7 Years (retired to Hyundai)
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98 Mazda truck
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