Your engine's performance depends on how effective your spark plug works to ignite the compressed air-fuel blend inside your combustion chamber. The spark plug derives its igniting power from your Mercedes Benz E420 spark plug wire. This is really a remarkably insulated cable that attaches the vehicle's ignition coil to the spark plugthat is pierced into the head cylinder of an engine. This particular cable will deliver voltage to your spark plug that will be utilized to ignite the compressed fuel-air inside the cylinder.
To be certain your Mercedes Benz E420 spark plug wire is competent to carry above 3,000 volts, it is then greatly covered. Deterioration found on the insulation and/or its own fitting leave this line worthless. You should change the ignition wire right away to keep the engine from being damaged.
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