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#1
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Champion Non Resistor Spark Plugs
With the scarcity of the bosch brand, Iam looking at
the champion brand RS12YC which is MB listed along with the bosch and the beru brands. Any favorable/bad experiences?
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joel Prayers bring forth enlightenment. |
#2
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ABC=anything but Champion!
didn't you learn your ABC's? OF course that "R" in front of the type means resistor. & Champion doesn't use "Yttrium" like Bosch uses for their newer resistor plugs. For MB's use Bosch OR Beru.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#3
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NGK does now have a FEW OE MB spark plug applications...& like I posted ABC!
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#4
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problem is from what i've read so far the equivalent ngr (for HD9DC) is also now resistor type plugs.
btw, the champions RS12YC is listed in my ops manual. wondered why MB would list a resistor plug alongside with non resistor plugs of bosch and beru?
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joel Prayers bring forth enlightenment. |
#5
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The WAY Bosch has made those plugs "resistor" plugs WON'T have any effect on their operation. THEY just cost more!
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator |
#6
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mercedes says that you can use bosch f8dc4 plugs [from the 104 eng] in place of the h9dc with no ill effects.
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David S Poole European Performance Dallas, TX 4696880422 "Fortune favors the prepared mind" 1987 Mercedes Benz 420SEL 1988 Mercedes Benz 300TE (With new evaporator) 2000 Mercedes Benz C280 http://www.w108.org/gallery/albums/A...1159.thumb.jpg |
#7
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Yes...the H9DCO plug were actually the original oem for 104 eng and they were changed to F8DC4..........
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#8
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I once had a SAAB that ran worse after replacing the plugs than it did before. Removing them and putting an Ohmmeter between tip and the electrode, three out of four were open, the resistors were fried after one day of trying to use them. I took them back and demanded a refund. That was how I learned the ABC's of sparkplugs. I prefer NGK's over anything. Bosch are also reliable, just avoid some of the platinum plugs they made that flaked off and shorted.
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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting! |
#9
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<
Me too....... I always used Bosch until the last few years ..Seems like I have had quite a few bad ones , specially the ones made in India .. the last couple of sets I bought [ W7DC for my 113] , the insulators would actually spin in the base ..not cool........... I emailed Bosch about it after the second set did the same ,but they claimed they had no known problems and I must have over-torqued them [ like I don't know plug install tech after 45 years] ...which was BS cuz when I brought the first set back to NAPA, the parts guy says , 'Oh, yeah, we have had a bunch of them do that..he gave me a new set , no questions asked and not surprised ..so that tells me something..... Last edited by Arthur Dalton; 01-19-2007 at 07:20 PM. |
#10
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I am not having a prob finding NGK BP5ES for my 380SL/560SL. Paying more than I should, but no problem.
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86 560SL With homebrew first gear start! 85 380SL Daily Driver Project http://juliepalooza.8m.com/sl/mercedes.htm |
#11
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so, do i take it that bosch/ngk resistor plugs are good subs to use?
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joel Prayers bring forth enlightenment. |
#12
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I've been finding the new Bosch resistor plugs don't sit well in cars that called for non resistor plugs. As such, I bought a large stock or Beru copper core non resistor plugs. Having only run them for a couple of months I can only offer praise. Time will tell how they hold up over the long haul..but given Beru's usual level of quality I'd be amazed if they didn't hold up @ least as well as the Bosch bits.
Jonathan
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Blue Ridge Mercedes Jonathan Hodgman http://www.blueridgemb.com/ Enthusiast Service, Restoration & Tuning. Follow Us on Facebook! Located in the Atlanta area Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines. Mercedes Repair Atlanta |
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