| Mercedes-Benz OM628 | |
| Manufacturer: | Mercedes-Benz |
| Production: | 1999–2005 |
| Successor: | Mercedes-Benz OM629 engine |
| Configuration: | 75° V8 |
| Displacement: | 3996cc |
| Bore: | 86mm |
| Stroke: | 86mm |
| Block: | Aluminium alloy |
| Head: | Aluminium alloy |
| Valvetrain: | DOHC 4 valves x cyl. |
| Compression: | 18.5:1 |
| Turbocharger: | Garrett GT1749V |
| Fuelsystem: | Common rail |
| Fueltype: | Diesel |
| Coolingsystem: | Water cooled |
| Power: | NaN0NaN0 |
| Torque: | 5600NaN0 |
The Mercedes-Benz OM628 engine is a turbocharged diesel V8 engine produced by Mercedes-Benz, from 1999 to 2005.
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.
| Engine | Power | @ rpm | Torque | @ rpm | Years |
|---|---|---|---|---|---|
| OM628 DE40 LA | 1840NaN0 | 4,000 | 5600NaN0 | 1,700–2,600 | 1999–2005 |
| 1910NaN0 | 2003–2005 |