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spark plugs

806 Views 3 Replies 3 Participants Last post by  Streetglower
yes i replace the sparkplug on my e 420 and forgot how to but the coils where they belongs sign help
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if you look at the coil you will see 2 letters, a and b then on the valve cover at each cylinder you will see A and B, the wires on each coil need to go into the corrosponding cylinder. A to A, B to B, understand.
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