The BMW M57 is a straight-6

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...

produced from 1998 up to 2013 in BMW's 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

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. The block and the crankcase of the first M57 engines and the TÜ (''Technische Überarbeitung'' = revision) engines are made of cast iron, whilst the TÜ2 engines are made of aluminium instead. The

combustion chamber A combustion chamber is part of an internal combustion engine in which the fuel/air mix is burned. For steam engines, the term has also been used for an extension of the firebox which is used to allow a more complete combustion process. Intern ...

was also changed in the TÜ2. The injection pressure is in the non TÜ engine, whilst all other engines use a pressure of . 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 4 ECU for non TÜ and DDE 5 ECU for TÜ. All models are equipped with turbocharger and an intercooler. The 2.9L M57, which is found in E39 530d and E38 730d, as well as early models of E46 330d and E53 X5, is equipped with one Garrett GT2556V turbocharger. The 2.5L M57TÜ uses a Garrett GT2056V turbocharger, the 3.0L M57TÜ a Garrett GT2260V turbocharger, the M57TÜ2 a Garrett GT2260VK turbocharger, whilst the M57D30TÜTOP sports 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

Applications

M57D25

Bore x stroke: * 2000 - 2003 in the BMW E39 525d (120 kW) * 2001 - 2003 in the

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2.5DTI Gert Hack:
BMW 525d, Opel Omega 2.5 DTI 24 V, Saab 9-5 3.0 TiD - Alte Kameraden mit modernen Dieseln
'', in auto motor und sport, 7 November 2001, retrieved 20 April 2019

M57D25TÜ

Bore x stroke: * 2003 - 2007 in the BMW E60/E61 525d or

M57D30

Bore x stroke: * and ** in the Range Rover L322 * and ** in the E39 as 530d ** in the E46 as 330d/330xd * and ** in the E38 as 730d ** in the E53 as X5 3.0d * and ** in the E39 as 530d * and ** in the E38 as 730d

M57D30TÜ

Bore x stroke: * and ** in the E46 as 330d/330Cd/330xd ** in the E83 as X3 3.0d * and ** in the E53 as X5 3.0d ** in the E60/E61 as 530d/530xd ** in the E65/E66 as 730d ** in the E83 as X3 3.0d

M57D30TÜ TOP

Bore x stroke: * and ** in the E60/E61 as 535d ** in the E63/E64 as 635d

M57D30TÜ2

Bore x stroke: * and ** in the E90/E91/E92/E93 as 325d ** in the E60/E61 as 525d * and ** in the E65/E66 as 730d ** in the E90/E91/E92/E93 as 330d/330xd ** in the E60/E61 as 530d/530xd * and ** in the E60/E61 as 530d ** in the E70 as X5 xDrive30d ** in the E71 as X6 xDrive30d

M57D30TÜ2TOP

Bore x stroke: * and ** in the E60/E61 as 535d ** in the E63/E64 as 635d ** in the E70 as X5 3.0sd ** in the E71 as X6 xDrive35d ** in the E83 as X3 3.0sd ** in the E90/E91/E92 as 335d

References

BMW E60 - Datenblatt
(German) Aftersales Training - Produktinformation. Kraftstoffaufbereitung Diesel.
Page 4 (German) TurboNews
Das Infomagazin von BorgWarner Turbo Systems
February 2004, page 9 (German) Kolbenschmidt
Valve Train Components and Cylinder Heads Passenger Cars
Page 255 onwards. Slideshare: BMW M57D30 Engine
/ref> Andreas39 in Bimmertoday
Die BMW-Sportdiesel: Von 524td E28 über 530d E39 bis BMW M550d F10
21. January 2012, (German)

External links

BMW Heaven - The BMW Knowledge Base
*The UnixNerd'

with photos, history and common problems. {{DEFAULTSORT:Bmw M57 M57 Straight-six engines Diesel engines by model