BMW M57

BMW M57
Overview
Manufacturer BMW
Production 1998–present
Layout
Configuration Inline-6 Diesel engine
Displacement 2497 cm3
2926 cm3
2993 cm3
Cylinder bore  
Piston stroke 80 × 82,8 mm
84 × 88 mm
84 × 90 mm
Cylinder block alloy Cast iron
Aluminum (TÜ2 onwards)
Valvetrain DOHC
Compression ratio 16,5-18:1
Combustion
Turbocharger 1 Garrett or 2 BorgWarner turbochargers with intercooler
Fuel system Common-Rail-Injection
Management Bosch DDE 4.0
Bosch DDE 5.0
Bosch DDE 6.0
Fuel type Diesel fuel
Cooling system Water-cooled
Output
Power output 120-210 kW
Torque output 350-580 N·m
Chronology
Predecessor BMW M51
Successor BMW N57
Sound of the engine in a BMW E39

The BMW M57 is a straight-6 diesel engine produced from 1998. It is produced in the upper Austrian engine plant in Steyr.

Description

The M57 is a water-cooled and turbocharged inline six cylinder diesel engine with common-rail-injection. It was revised twice during its production time. It is based on its predecessor M51. The block and the crankcase of the first M57 engines and the TÜ (Technische Überarbeitung = revision) engines are made of cast iron, TÜ2 engines are made of aluminium instead.[1] The combustion chamber was also changed in the TÜ2.[1] The injection pressure is 1350 bar[2] in the 2.5l engine, all other engines use a pressure of 1600 bar instead.[2] For fuel injection, magnetic injectors are used, except from the TÜ2 OL and TOP engines, which make use of piezo injectors.[2] The common-rail-system is made by Bosch and also controlled by a Bosch DDE 5 ECU.[3] The M57 is equipped with one Garrett GT2556V turbocharger and an intercooler, the M57TÜ uses a Garrett GT2260V turbocharger and intercooler and the M57D30TÜTOP uses a BorgWarner KP39 high-pressure and a K26 low-pressure turbocharger.[4] The compression ratio reaches from 16,5:1 to 18:1, M57 engines with higher power output and more than one turbocharger have a lower compression ratio.[5] Every cylinder has two inlet and two exhaust valves as well as two chain-driven overhead camshafts.[6] The redline is 4750 rpm.

Technical Data

EngineBore × Stroke
(mm)		DisplacementPowerTorqueYear
M57D2580 × 82,8[5]2,497 cc (152 cu in)120 kW
@ 4000 rpm		350 Nm
@ 2000–2500 rpm		2000
M57D25TÜ84 × 75,1[3]120 kW
@ 4000 rpm		400 Nm
@ 2000–2750 rpm		2004
130 kW
@ 4000 rpm
M57D3084 × 88[5]2,926 cc (179 cu in)135 kW
@ 4000 rpm		390 Nm
@ 1750–3200 rpm		1998
410 Nm
@ 2000–3000 rpm
142 kW
@ 4000 rpm		410 Nm
@ 1750–3000 rpm		2000
M57D30TÜ84 × 90[3]2,993 cc (183 cu in)150 kW
@ 4000 rpm		410 Nm
@ 1500–3250 rpm		2003
160 kW
@ 4000 rpm		500 Nm
@ 2000–2750 rpm		2002
200 kW
@ 4400 rpm		560 Nm
@ 2000–2250 rpm		2004
M57D30TÜ2145 kW
@ 4000 rpm		400 Nm
@ 1300–3250 rpm		2006
170 kW
@ 4000 rpm		500 Nm
@ 1750–3000 rpm		2005
520 Nm
@ 2000–2750 rpm		2005
173 kW
@ 4000 rpm		500 Nm
@ 1750–3000 rpm		2007
520 Nm
@ 2000–2750 rpm		2007
210 kW
@ 4400 rpm		580 Nm
@ 2000–2250 rpm		2006

Applications

M57D25
M57D25TÜ
M57D30
M57D30TÜ
M57D30TÜ2
M57D30TÜTOP

See also

References

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