BMW N57

Last updated
BMW N57
BMW N57T.jpg
Overview
Manufacturer BMW
Production2008–2019
Layout
Configuration Straight-6
Displacement 3.0 L; 182.6 cu in (2,993 cc)
Cylinder bore 84 mm (3.31 in)
Piston stroke 90 mm (3.54 in)
Cylinder block materialAluminium
Cylinder head materialAluminium
Valvetrain DOHC 4 valves x cyl.
RPM range
Max. engine speed 5400
Combustion
Turbocharger Single, Twin-turbo or Tri-Turbo variable-geometry
Fuel system Common rail Direct Injection
Management Bosch
Fuel type Diesel fuel DIN EN 590
Cooling system Water-cooled
Output
Power output 150–280 kW (201–375 hp)
Torque output 450–740 N⋅m (332–546 lb⋅ft)
Chronology
Predecessor BMW M57
BMW M67
Successor BMW B57

The BMW N57 is a family of aluminium, turbocharged straight-6 common rail diesel engines. The engines utilize variable geometry turbochargers and Bosch piezo-electric injectors. [1] The engine jointly replaced the M57 straight-6 and M67 V8 engines. In 2015 the N57 started to be replaced with the B57 engine, beginning with the G11 730d.

Contents

Summary

Engine codePowerTorqueRedline
(manual/auto)		Years
N57D30U0150 kW (201 hp)
at 3750		430 N⋅m (317 lb⋅ft)
at 1750-2500		5000/42502010
N57D30U0 (F07 525d)155 kW (208 hp)
at 4000		450 N⋅m (332 lb⋅ft)
at 1750-2500		5000/42502010
N57D30O0 (E9x 330d)180 kW (241 hp)
at 4000		520 N⋅m (384 lb⋅ft)
at 1750-3000		5400/45002008
N57D30O0180 kW (241 hp)
at 4000		540 N⋅m (398 lb⋅ft)
at 1750-3000		5400/45002008
N57D30O1190 kW (255 hp)
at 4000		560 N⋅m (413 lb⋅ft)
at 1500-3000		5400/43002011
N57D30T0225 kW (302 hp)
at 4400		600 N⋅m (443 lb⋅ft)
at 1500-2500		5000/47502009
N57D30T1230 kW (308 hp)
at 4400		630 N⋅m (465 lb⋅ft)
at 1500-2500		5200/46002011
N57S [2] 280 kW (375 hp)
at 4000-4400		740 N⋅m (546 lb⋅ft)
at 2000-3000		5400/46002012

N57D30

N57D30Ox has 1800 bar fuel pressure, while N57D30Tx has 2000 bar fuel pressure. N57D30Ox uses a single turbocharger, while N57D30Tx uses twin-turbochargers, and N57S uses three turbochargers of varying size.

Applications:

Engine fires in police vehicles

In January 2022, BMW released a statement acknowledging the presence of a technical issue with the N57 engine which contributed to instances of police vehicles in the United Kingdom catching fire, including one case in January 2020 which resulted in the death of a British police officer. [4] This issue led to police forces across the United Kingdom withdrawing, retiring or limiting the speed of vehicles powered by the N57 engine, preventing their use in pursuits. [5] In the press release, BMW stated “This issue is associated with the particular way in which the police operate these high-performance vehicles […] there is no need for action on civilian vehicles”. [4] It was reported that the issue was caused by high-speed driving after long periods of engine idling. [6]

Safety concerns about this engine in 2016, and the 2022 inquest into the death of PC Nicholas Dumphreys on 26 January 2020, had the consequence that in January 2023, BMW stopped supplying cars to UK police altogether and closed down their International and Specialist Sales Division at their dealership in Park Lane, Mayfair. Police forces are instead moving to other brands, such as the Volvo XC90 and Volkswagen Touareg. [6] [7]

See also

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References

  1. ↑ "Direct Injection Spark Ignition Engine Combustion". Engine.kaist.ac.kr. Archived from the original on 2007-11-04. Retrieved 2011-11-08.
  2. ↑ "N57S pictures". BMW. Retrieved 2012-03-23.
  3. ↑ "FULL OFFICIAL F10 SPECS - 523i / 528i / 535i / 550i / 520d / 525d / 530d - 2010 2011 BMW 5 Series Forum F10". F10.5post.com. Archived from the original on 19 August 2010. Retrieved 2010-09-13.
  4. 1 2 "Police put brakes on use of BMWs after engine fire led to officer's death". The Telegraph. Archived from the original on 2022-02-16. Retrieved 2022-02-20.
  5. ↑ "Police ordered to limit speed in chases because of issues with BMWs". The Independent. Archived from the original on 2022-02-18. Retrieved 2022-02-20.
  6. 1 2 Baggott, James. "Exclusive: BMW halts sale of all police cars to forces in UK with immediate effect". cardealermagazine.co.uk. Car Dealer Magazine. Retrieved 15 January 2023.
  7. ↑ Shale-Hester, Tristan. "No more BMW police cars: German brand halts sales to UK forces". autoexpress.co.uk. Auto Express. Retrieved 15 January 2023.
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