Spark Plug Wires
#1
Spark Plug Wires
Hello, I have reached 100K and replacing my spark plugs Bosch +4 Electrode, Do I need to replace the Spark Plug Wires as well? Can I just re-use my old ones?
#6
Super Moderator
Use the correct OE Bosch or NGK plug. You are in the area that wires can give trouble.
#7
MBWorld Fanatic!
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#9
put it this way you are probably never going to do the plugs or wires again. Spend the extra money... And honestly in my experience I have never scene a difference among different spark plugs... You can feel the difference when you change your OLD ones and put in NEW ones but if you put OEM Bosch or NGK you will probably not notice the difference between them
#10
MBWorld Fanatic!
#11
Super Moderator
The plug wires live in a hostile environment - vibration & heat. Insulation etc breaks down over time. The odd misfires start coming in over 100K miles & you can get stuck on the side of the road.
I would not replace coils until failure. They are expensive & pretty erratic on the sort of life they give.
I would not replace coils until failure. They are expensive & pretty erratic on the sort of life they give.
#13
Super Moderator
It depends when in MB life you are talking about.
Most M112 engine plug leads have carbon impregnated fibre cores (Kevlar or CF) with silicone insulation.
Most M112 engine plug leads have carbon impregnated fibre cores (Kevlar or CF) with silicone insulation.
#14
Spark Plug Changed
thank you guys! I replaced all ignition wires too and the spark plugs, i noticed a huge difference in fuel efficiency. Before, in a week I have to re-fill my tank, i've been driving it for a week now and I have a little less than half tank. same distances and same routine.
#15
thank you guys! I replaced all ignition wires too and the spark plugs, i noticed a huge difference in fuel efficiency. Before, in a week I have to re-fill my tank, i've been driving it for a week now and I have a little less than half tank. same distances and same routine.
#18
Senior Member
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#21
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2005 C230K
Would this situation and advice be the same for a 2005 C230K SS? I'm about to replace my spark plugs at 78k miles and the only wires I can find are these:
http://www.partsgeek.com/catalog/200..._wire_set.html
Thanks.
http://www.partsgeek.com/catalog/200..._wire_set.html
Thanks.
#22
Would this situation and advice be the same for a 2005 C230K SS? I'm about to replace my spark plugs at 78k miles and the only wires I can find are these:
http://www.partsgeek.com/catalog/200..._wire_set.html
Thanks.
http://www.partsgeek.com/catalog/200..._wire_set.html
Thanks.
#23
Would this situation and advice be the same for a 2005 C230K SS? I'm about to replace my spark plugs at 78k miles and the only wires I can find are these:
http://www.partsgeek.com/catalog/200..._wire_set.html
Thanks.
http://www.partsgeek.com/catalog/200..._wire_set.html
Thanks.
#24
Super Moderator
The M271 engine is coil on plug. No wires to replace like M112 V6 models. M272 is also coil on plg.