Spark Plug Replacement W221 2007-2011 Mercedes -Benz S550 Spark Plug Replacement
WARNING: for education purposes only. Perform DIY automobile Maintenace at your own risk. Job: Spark Plug Replacement Cost: $110 Approx Supplies : 8 OEM Bosch Spark Plugs, T30 Torx, Wrench, 5/8 inch spark plug socket and 6 inch minimum extension. Time: 60 Minutes Difficulty: Moderate

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