Date registered: Feb 2009
Vehicle: 1993 400E
Location: Ft Lauderdale, Florida
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Mercedes 300E Denso T20EP U Non Resistor Spark Plugs x6 Six Tune Up Kit M103 | eBay
The importance of using a non-resistor plug in a system (coil, cap, rotor, and wires) designed for them has been beaten to death in this forum. My opinion FWIW: different resistance from that originally specified
will change the waveform, height, and duration of the spark. Not by much, but maybe by enough to cause a problem.
Non resistor plugs are out there as you can see, and cheap. Buy 2 sets in case that changes in the future.
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Mercedes Benz Expert, factory trained, retired.
30 years experience as a dealer technician 1982-2012
Currently ASE Master Technician, forum contributor
Last edited by Clarkz71; 11-24-2013 at 07:15 AM.