The Mercedes-Benz OM628 engine is a turbocharged diesel V8 engine produced by Mercedes-Benz, from 1999 to 2005.
Design The OM628 was created in response to competing V8 diesel engines produced by Audi and BMW. It first appeared in the W220 S400 CDI and was subsequently the first V8 diesel engine in a Mercedes passenger vehicle. The OM628 engine features dual overhead camshafts, 4 valves per cylinder, exhaust gas recirculation, a Garrett GT1749V turbocharger, and Euro 4 emissions compliance. The engine block and cylinder heads are made from an aluminium alloy, via the sand-casting process.
Models EnginePower@ rpmTorque@ rpmYearsOM628DE40 LA4,000 1,700–2,6001999–20052003–2005
OM628 (184 kW version) 1999–2003 W220 S400 CDI 2001–2005 W163 ML400 CDI 2001–2005 W463 G400 CDI
OM628 (191 kW version) 2003–2005 W211 E400 CDI 2003–2005 W220 S400 CDI
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