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| BMW M67 | |
|---|---|
| Overview | |
| Manufacturer | BMW |
| Production | 1998-2009 |
| Layout | |
| Configuration | 90° V8 |
| Displacement |
|
| Cylinder bore | 3.9-litre: 84 mm (3.31 in) 4.4-litre: 87 mm (3.43 in) |
| Piston stroke | 3.9-litre: 88 mm (3.46 in) 4.4-litre: 93 mm (3.66 in) |
| Cylinder block material | Cast iron (3.9-litre) Aluminium (4.4-litre) |
| Cylinder head material | Aluminium |
| Valvetrain | DOHC 4 valves x cyl. |
| RPM range | |
| Max. engine speed | 4,700 |
| Combustion | |
| Turbocharger | Twin-turbo |
| Fuel system | Common rail direct injection |
| Fuel type | Diesel fuel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 175–243 kW (235–326 hp) |
| Torque output | 560–750 N⋅m (413–553 lb⋅ft) |
| Dimensions | |
| Dry weight | 3.9-litre: 222 kg (489 lb) (277 kg (611 lb) wet) 4.4-litre: 192 kg (423 lb) |
| Chronology | |
| Predecessor | - |
| Successor | BMW M57 |
The BMW M67 is an automobile diesel engine, used in the BMW 7 Series. It was first introduced in 1998, and used until 2009. The engine is a common rail turbodiesel V8 design, using double overhead camshafts and 32 valves. It is the first luxury car application of a bi-turbo diesel intercooled V8 engine. The 3.9-litre iteration won the "3-4 L" category of the International Engine of the Year award in 1999 and again in 2000. Up to this point, there has been no direct successor to this engine within the BMW lineup.