Cam, as far as I know it's thermal paste that you want to make sure is under the EZL so the inner fender functions as a heat sink. If the EZL fails a new one from your local MB dealer will cost in the neighborhood of $1,500 to $2,000. It's important to avoid that scenario by conscientiously maintaining the ignition system components (distributor cap, distributor rotor, ignition wires, coil and spark plugs).

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Fred Hoelzle