BMW B38

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BMW B38
overview
Manufacturer : BMW.svg BMW
Production period: since 2014
Combustion chamber
Design: Inline three-cylinder
Displacement variants : 1.2, 1.5 l
Chronological order
Previous model: not a direct one
Successor:

The BMW B38 is a three-cylinder in - line engine ( gasoline engine ) made by the car manufacturer BMW . Together with the B48 and B58 ( four - or six-cylinder engine ) and the two diesel engines B37 and B47 (three- and four-cylinder), he is one of the imported 2013/2014 modular engines from BMW. The BMW plant in Munich is the lead plant for the B38, B48 and B58 engines. The modular engines are installed in both BMW and Mini models. This means that the engines previously developed in cooperation between BMW and the PSA Group are gradually being replaced in the mini models.

construction

The crankcase (engine block) in "closed-deck construction" consists of aluminum, with the cylinder liners coated with a hard iron alloy. As with the M20 introduced in 1977, the cylinder center distance is 91 mm. The individual cubic capacity is a maximum of 500 cm³. The B38 engine has a turbocharger with a water-cooled aluminum housing, direct injection and camshaft adjustment , from 1.5 l displacement the valve control " Valvetronic " with valve lift adjustable via adjustable intermediate levers and roller rocker levers . The stroke-to-bore ratio is 1.15 for all variants. This helps ensure that the maximum torque is already below 1400 rpm - except for the i8 variant. A balance shaft is built in to absorb first-order vibrations , which runs in needle bearings for low friction.

Since April 2015, after failures of the 100 kW variant in user profiles with high clutch usage, a 360-degree flange bearing has been installed as the axial bearing of the crankshaft instead of a half-shell bearing.

Since 2018, the mini versions have had 10 Nm higher torques after - together with other changes - the injection pressure could be increased from 200 to 350 bar. Carbon fiber-reinforced material is used for the plastic cover of the engine, which on the one hand makes it lighter and on the other allows the use of offcuts from the production of the i-models.

From March 2018 or May 2018 (i8), the BMW variants will receive a gasoline particulate filter (OPF) , and from July 2018 also the mini variants, so that the Euro 6d-Temp standard is met.

Data

Engine type cylinder Displacement Bore × stroke Power at 1 / min Torque at 1 / min vehicle
B38A12 R3 1.2 l (1198 cm³) 78.0 x 83.6 55 kW (75 PS) at 4250 150 Nm at 1400-4000 Mini One First (F56)
B38B12U0 R3 1.2 l (1198 cm³) 78.0 x 83.6 75 kW (102 hp) in the 4250–6000 180 Nm at 1400-4000 Mini One (F56)
B38A15 R3 1.5 l (1499 cm³) 82.0 x 94.6 55 kW (75 hp) at 3500-6500 160 Nm at 1250-3000 Mini One First (from 2018)
B38A15 R3 1.5 l (1499 cm³) 82.0 x 94.6 75 kW (102 hp) at 3900-6500 190 Nm at 1380-3600 Mini One (from 2018)
B38B15 R3 1.5 l (1499 cm³) 82.0 x 94.6 75 kW (102 hp) in the 4100-6000 180 Nm at 1200–3800 BMW 216i Gran Tourer
B38B15U0 R3 1.5 l (1499 cm³) 82.0 x 94.6 80 kW (109 hp) at 4500-6000 180 Nm at 1250-4250 BMW F20LCI / 21LCI (116i)
B38B15M0 R3 1.5 l (1499 cm³) 82.0 x 94.6 100 kW (136 hp) for 4400-6000 220 Nm at 1250-4300 BMW 2 Series Gran Tourer
100 kW (136 hp) at 4500-6000 220 Nm at 1250-4000 Mini (F55 / F56 / F57)
100 kW (136 hp) for 4400-6000 220 Nm at 1250-4000 Mini (F54)
100 kW (136 hp) for 4400-6000 220 Nm at 1400-4300 Mini (F60)
B38A15M1 R3 1.5 l (1499 cm³) 82.0 x 94.6 103 kW (140 hp) in the 4600-6500 220 Nm at 1480-4200 F39, F40, F44, F45, F46, F48
B38K15T0 R3 1.5 l (1499 cm³) 82.0 x 94.6 170 kW (231 hp) at 5800 320 Nm at 3700 BMW i8 (I12 / I15)

Technical data of the BMW 2 Series Active Tourer , technical data of the mini 3 door, technical data of the mini 5 door, technical data of the BMW i8 , production data of the mini 3 door, the new mini with additional engine variants

use

1.2 l 55 kW (75 PS)

B38 in the Mini
  • F55 (Mini) as Mini One First 5-door (03/2015 - 11/2017)
  • F56 (Mini) as Mini One First 3-door (07/2014 - 11/2017)

1.2 l 75 kW (102 PS)

  • F55 (Mini) as Mini One 5-door (03/2014 - 11/2017)
  • F56 (Mini) as Mini One 3-door (11/2014 - 11/2017)
  • F57 (Mini) as Mini One Cabrio (03/2016 - 11/2017)

1.5 l 55 kW (75 PS)

  • F56 (Mini) as Mini One First 3-door (since 11/2017)
  • F56 (Mini) as Mini One First 5-door (since 11/2017)

1.5 l 75 kW (102 PS)

  • F45 as BMW 216i Active Tourer (11/2015 - 02/2018)
  • F46 as BMW 216i Gran Tourer (07/2015 - 02/2018)
  • F55 (Mini) as Mini One 5-door (since 11/2017)
  • F56 (Mini) as Mini One 3-door (since 11/2017)
  • F57 (Mini) as Mini One Cabrio (since 11/2017)
  • F54 (Mini) as Mini Clubman (since 07/2018)
  • F60 (Mini) as Mini Countryman (since 07/2018)

1.5 l 80 kW (109 hp)

  • F20LCI / 21LCI as BMW 116i (since 03/2015)
  • F45 and F46 as 216i Active and Gran Tourer (since 03/2018)

1.5 l 100 kW (136 hp)

  • F20LCI / 21LCI as BMW 118i (01/2015 - 06/2019)
  • F22 / F23 as BMW 218i (since 03/2015)
  • F45 as BMW 218i Active Tourer (03/2014 - 02/2018)
  • F46 as BMW 218i Gran Tourer (03/2015 - 02/2018)
  • F30LCI / F31LCI as BMW 318i (since 05/2015)
  • F48 as BMW X1 sDrive18i (06/2015 - 07/2017)
  • F55 (Mini) as Mini Cooper 5-door (since 07/2014)
  • F56 (Mini) as Mini Cooper 3-door (since 03/2014)
  • F57 (Mini) as Mini Cooper Cabrio (since 03/2016)
  • F54 (Mini) as Mini Cooper Clubman (since 07/2018)
  • F60 (Mini) as Mini Cooper Countryman (since 07/2018)

1.5 l 103 kW (140 hp)

  • F39 as BMW X2 sDrive18i (since 03/2018)
  • F40 as BMW 118i (since 09/2019)
  • F44 as BMW 218i Gran Coupé (from 03/2020)
  • F45 and F46 as 218i Active and Gran Tourer (since 03/2018)
  • F48 as BMW X1 sDrive18i (since 07/2017)

1.5 l 170 kW (231 hp)

  • I12 as BMW i8 Coupé (since 05/2018)
  • I15 as BMW i8 Roadster (since 05/2018)

Web links

Commons : BMW B38  - collection of pictures, videos and audio files

Individual evidence

  1. ↑ BMW modular engines: Munich plant lead plant for B38 and B48 (http://www.bimmertoday.de/2014/06/05/bmw-baukasten-motoren-werk-muenchen-produktion-b38-b48/) , accessed on 5th June 2014.
  2. ↑ BMW: New engines for the 2017 model year at Heise.de from May 18, 2016, accessed February 12, 2018.
  3. ^ [1] , New BMW modular engine generation and new assembly line from October 30, 2014, accessed from www.press.bmwgroup.com on July 7, 2017
  4. ↑ a b c d heise.de on B38 and B48 from August 8, 2014, accessed on July 9, 2017
  5. ↑ The BMW B38 at Motor Car , accessed February 12, 2018.
  6. ↑ a b The new Mini (https://www.press.bmwgroup.com/deutschland/pressDetail.html?title=der-neue-mini&outputChannelId=7&id=T0164833DE&left_menu_item=node__5129) , accessed on June 5, 2014.
  7. ↑ Benny 7 at Bimmertoday, BMW three-cylinder: long-term test problems of the B38 fixed, from October 5th, 2017 , contains original BMW statement; accessed December 28, 2017.
  8. ↑ | auto motor sport on the revised mini motors from January 9, 2018.
  9. ↑ a b 6d-Temp-List at OPF-Filter.de , April 9, 2018.
  10. ↑ bimmertoday on the model update of the Mini in summer 2018 from July 2, 2018, accessed on July 5, 2018.
  11. ↑ a b Autobild for the mini facelift from January 10, 2018, accessed March 19, 2018.
  12. ↑ The new BMW 1 Series . BMW media information, relevant technical data for the B38B15 on page 48. January 16, 2015. Archived from the original on January 18, 2015. Retrieved on January 18, 2015.
  13. ↑ Technical data of the new BMW 2 Series Active Tourer, valid from 02/2014 (https://www.press.bmwgroup.com/deutschland/download.html?textId=203575&textAttachmentId=248139) , accessed on June 5, 2014.
  14. ↑ The new Mini 5-door (https://www.press.bmwgroup.com/deutschland/download.html?textId=223019&textAttachmentId=268984) , accessed on June 5, 2014.
  15. ↑ The BMW i8 () ( Memento from June 7, 2014 in the Internet Archive ), accessed on June 5, 2014.
  16. ↑ Production data of the Mini 3-door (http://www.bmwarchiv.de/e-code/f56.html) ( Memento of the original from July 14, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked . Please check the original and archive link according to the instructions and then remove this notice. , accessed June 8, 2014. @1@ 2Template: Webachiv / IABot / www.bmwarchiv.de
  17. ↑ The new Mini with additional engine variants (https://www.press.bmwgroup.com/deutschland/pressDetail.html?title=mehr-fahrspa%c3%9f-mehr-vielfalt-der-neue-mini-mit-zus% c3% a4tzlichen-motorvarianten & outputChannelId = 7 & id = T0182192DE & left_menu_item = node__9577) , accessed on June 10, 2014.
Timeline of BMW gasoline engines for passenger cars since 1961
Number of cylinders Conception 1960s 1970s 1980s 1990s 2000s 2010s
0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
3 1.5 l B38
4th (1.5–2.0 l) M10
M40
M42
M43
M44
N40
N42
N45
N46
N43
N13
N20
B48
High performance motor S14
6th Small six-cylinder (2.0-3.0 l) M20
M50
M52
M54
Large six-cylinder (2.5-3.5 l) M30
N52
N53
N54
N55
B58
High performance motor M88
S38
S50
S52
S54
S55
8th 3.0-4.4 l M60
M62
N62
N63
High performance motor S62
S63
S65
10 High performance motor S85
12 5.0-6.6 l M70
M73
N73
N74
High performance motor S70
Number of cylinders Conception 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th 9 0 1 2 3 4th 5 6th 7th 8th
1960s 1970s 1980s 1990s 2000s 2010s