BMW N57

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N57
Production period: since 2008
Manufacturer: BMW
Working principle: diesel
Motor design: line
Valve control: DOHC
Displacement: 2993 cm 3
Mixture preparation: Common rail injection
Engine charging: Turbocharger with intercooler
Power: 150-280 kW
Max. Torque: 430-740 Nm
Previous model: M57
Successor: B57

The BMW N57 is a six-cylinder - diesel engine from BMW , produced in 2008. It is used in various BMW vehicles.

technology

The N57 is a turbocharged and water-cooled six-cylinder in-line engine with two overhead camshafts that is inclined by 30 ° and operates on the diesel principle. The bore and stroke are 84 × 90 mm, resulting in a displacement of 2993 cm 3 . The engine's crankcase is made of aluminum. In order to be able to withstand the stresses that occur, a plate is screwed to the bottom of the crankcase for reinforcement. The main bearing shells for the crankshaft are made of sintered metal and a forged crankshaft runs in them. In the cylinders dry, thermally connected to the cylinder block liners used. The engine's cylinder head is divided into two parts. The lower part comprises the inlet and exhaust gas ducts as well as the valves, the upper part consists of a carrier plate in which the camshafts run, it is screwed to the lower part. The cylinder head is also provided with an exhaust gas recirculation duct. The camshafts actuate two intake and two exhaust valves per cylinder. A timing chain on the flywheel side of the engine, which is tensioned with hydraulic chain tensioners, drives the intake camshaft. The exhaust camshaft is driven from the intake camshaft. The fuel is injected directly into the cylinders using a common rail system from Bosch . The injection pressure is between 1800 and 2000 bar, depending on the model. Depending on the model, one, two or three turbochargers are installed, which are linked to an intercooler .

Recall due to illegal software on the N57D30S1

In the context of the emissions scandal , Deutsche Umwelthilfe carried out measurements of emissions during practical driving on a 750d xDrive in spring 2017 . This emitted an average of 646 mg / km of nitrogen oxides (NO x ), which corresponds to about eight times the permissible limit value .

On February 23, 2018, Spiegel Online reported that some models with N57 engines were equipped with - according to Spiegel's interpretation - "manipulated" exhaust software. On February 22nd, BMW confirmed the use of the inadequate software at a hearing at the Federal Motor Transport Authority in Flensburg; Federal Transport Minister Scheuer (CSU) spoke of “impermissible shutdown devices ” in the engine control system. On March 20, 2018, it was reported that the Munich public prosecutor's office had initiated an investigation against BMW "on suspicion of fraud in exhaust gas cleaning". There is a suspicion that BMW is using a test bench-related disconnection device. Around 100 officials searched the premises at BMW headquarters and in the research and innovation center in Munich, as well as in the Steyr diesel engine plant.

According to BMW, examples of the vehicle types M550d xDrive Sedan (production 03/2012 to 10/2016), M550d xDrive Touring (production 03/2012 to 02/2017), 750d xDrive (production 07/2012 to 06/2015) and 750Ld xDrive are affected (Production 07/2012 to 06/2015): “Data entries were mistakenly taken from a software version that had been developed for vehicles with a different emission control system. On longer journeys, this leads to increased NO x emissions, as the NO x storage catalytic converter is not regenerated as planned. ” Harald Krüger , CEO of BMW AG, said at the Annual General Meeting on May 17, 2018:“ We are facing some Years of making a mistake ”; the chairman of the supervisory board, Norbert Reithofer , spoke of a “manual, human error” which would not have resulted in the emission levels on the test bench being lower than on the road. “This has nothing to do with targeted manipulation of the engine management system and exhaust gas cleaning,” says Krüger.

The Federal Motor Transport Authority ( Kraftfahrtbundesamt) requested BMW in the form of an official recall on March 13, 2018 to “remove the existing inadmissible defeat devices in order to restore the vehicles to compliance”. According to BMW, around 11,700 vehicles are affected worldwide, around 9,300 of them in Europe (including Germany) and around 5,000 in Germany. BMW started the recall on May 29, 2018 after the KBA approved the software update by BMW.

Technical specifications

Engine type Bore × stroke Displacement Compression ratio Power at min −1 Torque (Nm) at min -1 Construction period
N57D30UL 84 × 90 mm 2993 cc 16.5: 1 150 kW (204 hp) at 3750 430 at 1750-2500 2010-2013
155 kW (211 hp) at 4000 450 at 1750-2500 -
N57D30OL 180 kW (245 PS) at 4000 520 at 1750-3000 2008-2013
540 at 1750-3000 2008-2014
N57D30OL (TÜ) 190 kW (258 hp) at 4000 560 at 2000-2750 since 2011
N57D30TOP 220 kW (299 hp) at 4400 600 at 1500-2500 2010–2012
225 kW (306 hp) at 4400 2009-2014
N57D30TOP (TÜ) 230 kW (313 hp) at 4400 630 at 1500-2500 since 2011
N57D30S1 280 kW (381 hp) at 4400 740 at 2000-3000 since 2012
source

Use at BMW

N57D30UL

  • 155 kW

N57D30OL

N57D30OL (TÜ)

N57D30TOP

  • 220 kW
    • 03 / 2010-06 / 2012 in the BMW F07 as a BMW 535d GT
    • 09 / 2010–09 / 2011 in the BMW F10 and BMW F11 as BMW 535d
  • 225 kW
    • 09 / 2009–06 / 2012 in the BMW F01 as BMW 740d
    • since 06/2010 in the BMW E70 as BMW X5 xDrive40d
    • since 03/2010 in the BMW E71 as BMW X6 xDrive40d

N57D30TOP (TÜ)

N57D30S1

  • 280 kW
    • since 03/2012 in the BMW F10 and BMW F11 as BMW M550d xDrive
    • 07 / 2012–2013 in the BMW E70 as BMW X5 M50d
    • since 07/2012 in the BMW E71 as BMW X6 M50d
    • since 07/2012 in the BMW F01 and BMW F02 as BMW 750d xDrive
    • since 08/2013 in the BMW F15 as BMW X5 M50d
    • since 11/2014 in the BMW F16 as BMW X6 M50d

Individual evidence

  1. ^ Eric Smith: BMW N57 engine in Australian Car Reviews. Retrieved May 9, 2016
  2. ↑ Gerald Traufetter: The federal government assumes systematic manipulation at BMW . In Spiegel Online, February 26, 2018. Retrieved October 6, 2018
  3. ↑ Gerald Traufetter: BMW admits irregularities in emissions software . In Spiegel Online, February 23, 2018. Retrieved August 19, 2018
  4. ↑ Gerald Traufetter: Federal Motor Transport Authority orders the recall of BMW luxury cars . In Spiegel Online, March 30, 2018. Retrieved October 6, 2018
  5. ^ Raid at BMW - public prosecutor's office determined , in faz.net, March 20, 2018, accessed on July 1, 2018
  6. ↑ Gerhard Brack: BMW calls back 11,700 diesel vehicles ( memento from August 19, 2018 in the Internet Archive ) . In BR24, February 23, 2018.
  7. ↑ RECALL MEASURE BMW 550d AND BMW 750d. at www.bmw.de, accessed on July 19, 2018
  8. ↑ Top management admits diesel error , in Spiegel Online, May 17, 2018, accessed on August 19, 2018
  9. ↑ KBA press release , accessed on August 19, 2018
  10. ↑ KBA reference number: 7697. The reason given is "Wrong software manipulates the exhaust gas cleaning system".
  11. ↑ BMW archive: BMW N57 - overview . Retrieved May 9, 2016
  12. ↑ BMW archive: N57D30UL . Retrieved May 9, 2016
  13. ↑ BMW archive: N57D30UL . Retrieved May 9, 2016
  14. ↑ BMW archive: N57D30OL . Retrieved May 9, 2016
  15. ↑ BMW archive: N57D30OL . Retrieved May 9, 2016
  16. ↑ BMW archive: N57D30OLTÜ . Retrieved May 9, 2016
  17. ↑ BMW archive: N57D30TOP . Retrieved May 9, 2016
  18. ↑ BMW archive: N57D30TOP . Retrieved May 9, 2016
  19. ↑ BMW archive: N57D30TOPTÜ . Retrieved May 9, 2016
  20. ↑ BMW archive: N57D30S1 . Retrieved May 9, 2016