mbenz280ce, do yourself a favor and order a new head gasket from your local MB dealer. Have the VIN handy so they get the proper head gasket for your engine. Their parts department will know whether or not you need to replace the head bolts. If it were my car I would replace the head bolts. Be sure to chase the threads in the head to ensure they are thoroughly clean, so the head bolts stretch properly and the head gasket compresses as designed. Otherwise, you may experience a problem with the new head gasket.

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Fred Hoelzle