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Old 01-21-2006, 05:18 AM
190Blacksmoke's Avatar
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Join Date: Dec 2004
Posts: 104
Talking trouble selecting right spark plug

Hi, I am doing a tune up on my 87 190e 2.3-16V and I came across some Bosch platinum 4's for it. Are these worth getting over the regular Bosch plugs? Is there really any benefit to them? I hear the claims that Bosch says that they are better, but I was curious what you guys think. Thanks.

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Old 01-21-2006, 06:08 AM
Ron in SC's Avatar
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Location: Charleston, SC
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Use only the brands of plugs with the proper part number recommended by MB. See thread in link. Spark Plug Replacement - ML320
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Old 01-23-2006, 08:24 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153

Platinum plugs work on cars with really lean mixtures..& on engines that DON'T burn ANY oil. Best on electronic fuel injected cars with ODB2 (1996+ later).

Don't waster your money on those plugs in that engine..BERU Ultra-X are copper core plugs with 3 electrodes..Much better for older applications like yours.

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