Hi Moedip and all - Thanks for the hint. I looked up hall effect and got nothing in AllData. Can you tell me where it is exactly? Does Mercedes call it something different? After cleaning up the wires and all it appeared quite evident that a new set is in order. Although chaffed in areas I don't have a strong feeling that wires are the cause - just ready to replace. After cleaning up some ground points, my "hard-to-start" issue seems to have been fixed. The car did the same old "lose-of-power/hesitation" last night. Not the coil/cap/ or rotor.

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Woody