Introduction The Mercedes-Benz OM656 is an inline, six-cylinder diesel engine that is part of a modular engine family with: The OM654 four-cylinder diesel engine; The M264 turbocharged four-cylinder petrol engine; The M256 turbocharged inline six-cylinder petrol engine; and, The M176 biturbo V8 petrol engine. The OM656 diesel engine effectively replaced the OM642 V6 diesel engine […]
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