The Mercedes-Benz OM628 engine is a turbocharged 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.^[1] 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.^[2] The engine block and cylinder heads are made from an aluminium alloy, via the sand-casting process.

Models

Engine	Power	@ rpm	Torque	@ rpm	Years
OM628 DE40 LA	184 kW (250 PS; 247 hp)	4,000	560 N⋅m (413 lb⋅ft)	1,700–2,600	1999–2005
OM628 DE40 LA	191 kW (260 PS; 256 hp)	4,000	560 N⋅m (413 lb⋅ft)	1,700–2,600	2003–2005