BMW M57


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 engines are made of cast iron, TÜ2 engines are made of aluminium instead. The combustion chamber was also changed in the TÜ2. The injection pressure is in the 2.5l engine, all other engines use a pressure of instead. For fuel injection, magnetic injectors are used, except from the TÜ2 OL and TOP engines, which make use of piezo injectors. The common-rail-system is made by Bosch and also controlled by a Bosch DDE 5 ECU. 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. The compression ratio reaches from 16.5:1 to 18.0:1, M57 engines with higher power output and more than one turbocharger have a lower compression ratio. Every cylinder has two inlet and two exhaust valves as well as two chain-driven overhead camshafts. The redline is 4750 rpm.

Technical Data

EngineBore × StrokeDisplacementPowerTorqueYear
M57D25
@ 4000 rpm
@ 1750 rpm		2001
M57D25
@ 4000 rpm
@ 2000–2500 rpm		2000
M57D25TÜ
@ 4000 rpm
@ 2000–2750 rpm		2004
M57D25TÜ
@ 4000 rpm
@ 2000–2750 rpm		2004
M57D30
@ 4000 rpm
@ 1750–3200 rpm		1998
M57D30
@ 4000 rpm
@ 2000–3000 rpm		1998
M57D30
@ 4000 rpm
@ 1750–3000 rpm		2000
M57D30TÜ
@ 4000 rpm
@ 1500–3250 rpm		2003
M57D30TÜ
@ 4000 rpm
@ 2000–2750 rpm		2002
M57D30TÜ
@ 4400 rpm
@ 2000–2250 rpm		2004
M57D30TÜ2
@ 4000 rpm
@ 1300–3250 rpm		2006
M57D30TÜ2
@ 4000 rpm
@ 1750–3000 rpm		2005
M57D30TÜ2
@ 4000 rpm
@ 2000–2750 rpm		2005
M57D30TÜ2
@ 4000 rpm
@ 1750–3000 rpm		2007
M57D30TÜ2
@ 4000 rpm
@ 2000–2750 rpm		2007
M57D30TÜ2
@ 4400 rpm
@ 2000–2250 rpm		2006

Applications

;M57D25
;M57D25TÜ
;M57D30
;M57D30TÜ
;M57D30TÜ2
;M57D30TÜTOP