Headbolt TSB PDF

A technical service bulletin addressing issues with check engine and low coolant indicators illuminating for certain Mercedes-Benz vehicles. It details complaints of engine misfiring and stalling due to a broken cylinder head bolt, which allows coolant to enter the engine oil. The document outlines remedies including replacing cylinder heads, measuring piston deck height, and changing engine oil. It also lists symptoms and parts involved, such as gaskets and bolts, and provides WIS references for further technical guidance.