2009 AMG Cylinder Head Bolts Replacement

2009 AMG Cylinder Head Bolts Replacement This 2009 Mercedes-Benz SL, AMG, is undergoing an extensive repair due to damaged head bolts.  This is a fairly common issue with the Mercedes-Benz “63” M156 big block 6.2 liter engine (See below for list of vehicles this engine is used in). Symptoms of the head bolt failure include engine misfiring and unexplained coolant…