__________________ 1990 Mercedes-Benz 560SEL soon to be Euro-spec clone AMG (summer of '09) 1991 Mercedes-Benz 190E AMG (undergoing restoration: July 1 - October 17, 2008)
Europarts San Diego. Steve has never let me down in many, many years of German car ownership.
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Scott in MD/DC
94 E320 Wagon (Just getting broken in)
95 C280 (RIP)
87 190E (Sold)
"There is nothing more expensive than a cheap Mercedes"
Good luck..Bosch stopped making the correct plugs, they are all HR9DC's. I'd look for the NGK equivalent or if you can find it Beru plugs are the ideal. The main concern is non-resistor copper core.
HI
I recommend NGK
H9DC i think taht 300e has H8DC.
In Europe all plugs are one heat range lower. So in the USA a 2.3 engine uses H8DC(O) while in Europe the same engine uses H7DC(O). I don't know why Europeans use the lower heat range.
Original Poster definitely try to get the NGK's if you can.
In Europe all plugs are one heat range lower. So in the USA a 2.3 engine uses H8DC(O) while in Europe the same engine uses H7DC(O). I don't know why Europeans use the lower heat range.
Maybe it is caused by the level of exhaust gas emission.
In usa i think is rigirous emission standarts.
Euro engines are hotter (higher compression/wilder cams/open exhaust/more aggressive timing and fuel maps) plus ya'll get to drive @ higher overall speeds thus the need for cooler plugs.
Euro engines are hotter (higher compression/wilder cams/open exhaust/more aggressive timing and fuel maps) plus ya'll get to drive @ higher overall speeds thus the need for cooler plugs.
upps Yes i forgot about that.
But if the usa engine have lower compression then it is caused by emission of gas and fuel octane .
1990 Mercedes 300e 212000 miles
Linear Mode
