C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

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Old May 5, 2009 | 04:47 PM
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rrocha's Avatar
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c 320 wagon
sparkplugs

Hello. is bosch iredium +4 a good plug for my 02 c320 wagon?thanks
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Old May 5, 2009 | 05:43 PM
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2006 C350 Sport 6MT
I talked to my coworker who drives a C320 and he uses "FR8DPP33+" and partnumber is "W0133-1826683". He said the expensive ones really don't make a difference and I remember once I read that those real expensive spark plugs really don't make a difference on Merc as well.

This was maybe 5 -6 years ago that I read this. Maybe technology has changed? Anyone can chime in on the spark plugs if the "high performance" ones really do make a difference for Merc?

I highly doubt it would. I think nothing beats OEM

Thanks

Last edited by W203E35; May 5, 2009 at 05:46 PM.
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Old May 5, 2009 | 06:03 PM
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2019 E450 Sedan 4Matic
Yeah I'd stick with OEM, I just used NGK G-power. I think some engines came with Bosch +2 and others are NGK G.
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Old May 5, 2009 | 07:01 PM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Use Bosch OE - no messing with plugs
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Old May 5, 2009 | 10:01 PM
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i put in NGK iridiums it was at spec. more response but bad MPG! im changing back to OE on my next service.
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Old May 5, 2009 | 11:05 PM
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02 C320 Sedan
Originally Posted by rrocha
Hello. is bosch iredium +4 a good plug for my 02 c320 wagon?thanks
I changed my spark plugs to these i believe... If these are the ones that are 9.99 a plug lol..

They have 4 prongs on the bottom of them.. Car seemed to be smoother with these plugs..

ppl will say not to put 4 prong plugs in our car but w/e i did car runs great
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