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Located at the rear of the engine block near the starter motor; failure results in no-start or sudden stalling when hot. Mercedes Workshop Manual Om646 Engine
The is not merely a guide; it is the definitive technical blueprint for this powerplant. Unlike generic repair guides, this official documentation provides the factory-level tolerances, specialized tooling requirements, and intricate procedures necessary to service one of Mercedes’ most complex diesel engines. If you require help interpreting a specific