BMW N53

Last updated
BMW N53 engine
530i Touring Msport LCI 59.JPG
Overview
Production2006–2013
Layout
Configuration Straight-6
Displacement 2,497  cc (152  cu in)
2,996  cc (183  cu in)
Cylinder bore 82 mm (3.2 in)
85 mm (3.3 in)
Piston stroke 78.8 mm (3.10 in)
88 mm (3.5 in)
Cylinder block materialMagnesium-Aluminium
Cylinder head materialAluminium
Valvetrain DOHC, with VVT
Combustion
Fuel type Petrol
Chronology
Predecessor BMW N52
Successor BMW N54

The BMW N53 is a naturally aspirated straight-6 petrol engine which was produced from 2006 to 2013. The N53 replaced the BMW N52 and was released in 2006 in the post-facelift E60 5 Series.

Contents

BMW never sold the N53 engine in North American, Australian and Malaysian vehicles, due to the high sulphur content of the fuel available in these markets. [1] Instead, these regions continued to use its predecessor, the N52 engine.

The N53 is the final naturally aspirated straight-six engine produced by BMW, ending a history of continuous production of this engine configuration since the BMW M30 in 1968. The N53 began to be phased out following the introduction of the BMW N20 turbocharged four-cylinder engine in 2011.

There is no BMW M version of the N53. The BMW N54 turbocharged straight-6 engine was produced alongside the N53.

Design

Double-VANOS, as seen on an N52 engine BMW-N52 DetailVanos.jpg
Double-VANOS, as seen on an N52 engine

Compared with its N52 predecessor which was port-injected, the N53 uses direct injection. The direct injection system uses piezoelectric fuel injectors which inject into the combustion chamber, using a stratified lean mixture operation. [2] The compression ratio was increased to 12.0:1 for the N53. [3]

As per the N52, the N53 has double-VANOS (variable valve timing) and a magnesium alloy block. [3] Unlike the N52, the N53 does not have Valvetronic (variable valve lift), due to space limitations in the cylinder head. [4] [5]

The bore of 85 mm (3.35 in) and stroke of 88 mm (3.46 in) are the same as the N52. Each cylinder has coil-on-plug ignition, as per the N52. [6]

Versions

Engine CodeDisplacementPowerTorqueYears
N53B252,497 cc (152.4 cu in)140 kW (188 bhp)
at 6,100 rpm		235 N⋅m (173 lb⋅ft)
at 3,500-5,000 rpm		2006-2010
N53B302,996 cc (182.8 cu in)150 kW (201 bhp)
at 6,100 rpm		270 N⋅m (199 lb⋅ft)
at 1,500-4,250 rpm		2009-2011
160 kW (215 bhp)
at 6,100 rpm		270 N⋅m (199 lb⋅ft)
at 2,400-4,200 rpm		2007-2013
190 kW (255 bhp)
at 6,600 rpm		310 N⋅m (229 lb⋅ft)
at 2,600-5,000 rpm		2009-2011
200 kW (268 bhp)
at 6,700 rpm		320 N⋅m (236 lb⋅ft)
at 2,750-3,000 rpm		2007-2013

N53B25

The 2.5 L (153 cu in) version of the N53 produces 140 kW (188 bhp) and 235 N⋅m (173 lb⋅ft). [5] It has a bore of 82 mm (3.23 in) and a stroke of 78.8 mm (3.10 in).

Applications: [7]

N53B30 (150 kW)

A 150 kW (201 bhp) version of the N53 was used in the pre-facelift F10 523i.

Applications: [8]

N53B30 (160 kW)

This 3.0 L (183 cu in) version of the N53 produces 160 kW (215 bhp), [5] the same figure as the 2.5 L (153 cu in) version of its N52 predecessor. However, peak torque increased from 250 to 270 N⋅m (184 to 199 lb⋅ft). [9]

Applications:

N53B30 (190 kW)

A 190 kW (255 bhp) version of the N53 was used in the pre-facelift F10 528i. [10]

Applications:

N53B30 (200 kW)

The most powerful version of the N53 produces 200 kW (268 bhp) of power and 320 N⋅m (236 lb⋅ft) of torque. [5] [11]

Applications:

High-Pressure Fuel Pump failures

The N53 uses the same High-Pressure Fuel Pump (HPFP) as the BMW N54 turbocharged straight-six engine, [12] which had HPFP failures leading to Lemon Law "buy backs" and legal action in the United States. The N53 engine was not sold in the United States, therefore the N53 engine was not involved with these actions. [13]

Failures of the N53 HPFP have been reported, [14] although it is not known whether failure in the N53 is as common as the N54.

See also

Related Research Articles

<span class="mw-page-title-main">BMW 5 Series (E34)</span> Third generation of the 5 Series executive car

The BMW E34 is the third generation of the BMW 5 Series, which was produced from November 2, 1987, until 1996. Initially launched as a sedan in January 1988, the E34 also saw a "Touring" station wagon (estate) body style added in September 1992, a first for the 5 Series. BMW replaced the E34 with the E39 5 Series in December 1995, although E34 Touring models remained in production until June 1996.

<span class="mw-page-title-main">BMW M30</span> Reciprocating internal combustion engine

The BMW M30 is a SOHC straight-six petrol engine which was produced from 1968 to 1995. With a production run of 27 years, it is BMW's longest produced engine and was used in many car models.

<span class="mw-page-title-main">BMW 5 Series (E12)</span> Motor vehicle

The BMW E12 is the first generation of 5 Series executive cars, which was produced from 1972 to 1981 and replaced the saloon models of the BMW New Class range.

<span class="mw-page-title-main">BMW 3 Series (E90)</span> Motor vehicle

The fifth generation of the BMW 3 Series range of compact executive cars is designated under the model codes E90 (saloon), E91, E92 (coupé) and E93 (convertible). The model was introduced in December 2004, and produced by BMW until October 2013 and is often collectively referred to as the E90 or E9x.

<span class="mw-page-title-main">BMW 5 Series (E39)</span> Motor vehicle

The BMW E39 is the fourth generation of the BMW 5 Series range of executive cars, which was manufactured from 1995 to 2004. It was launched in the sedan body style, with the station wagon body style introduced in 1996. The E39 was replaced by the E60 5 Series in 2003, however E39 Touring models remained in production until May 2004.

<span class="mw-page-title-main">BMW 5 Series (E60)</span> Line of German executive cars

The fifth generation of the BMW 5 Series executive cars consists of the BMW E60 and BMW E61. The E60/E61 generation was produced by BMW from 2003 to 2010 and is often collectively referred to as the E60.

<span class="mw-page-title-main">BMW 6 Series (E63)</span> Motor vehicle

The second generation of the BMW 6 Series consists of the BMW E63 and BMW E64 grand tourers. The E63/E64 generation was produced by BMW from 2003 to 2010 and is often collectively referred to as the E63.

<span class="mw-page-title-main">BMW M54</span> Reciprocating internal combustion engine

The BMW M54 is a naturally aspirated straight-6 DOHC petrol engine produced from 2000 to 2006. It was released in the E53 X5 and is the replacement for the M52 engine. The S54 is the equivalent high performance engine, used in the E46 M3, the Z3 M Coupé/Roadster and the E85/E86 Z4 M. The BMW M56 SULEV engine is based on the M54.

<span class="mw-page-title-main">BMW M57</span> Reciprocating internal combustion engine

The BMW M57 is a straight-6 diesel engine produced from 1998 up to 2013 in BMW's upper Austrian engine plant in Steyr.

<span class="mw-page-title-main">BMW N54</span> Reciprocating internal combustion engine

The BMW N54 is a twin-turbocharged straight-six petrol engine that was produced from 2006 to 2016. It is BMW's first mass-produced turbocharged petrol engine and BMW's first turbocharged petrol engine since the limited-production BMW M106 was discontinued in 1986. The N54 debuted at the 2006 Geneva Motor Show and was launched in the 335i model of the E90/E91/E92/E93 3 Series range.

<span class="mw-page-title-main">BMW N46</span> Reciprocating internal combustion engine

The BMW N46 is a naturally aspirated inline-four piston engines which replaced the BMW N42 and was produced from 2004 to 2015.

<span class="mw-page-title-main">BMW N52</span> Straight-6 DOHC piston engine

The BMW N52 is a naturally aspirated straight-6 petrol engine which was produced from 2004 to 2015. The N52 replaced the BMW M54 and debuted on the E90 3 Series and E63 6 Series.

<span class="mw-page-title-main">BMW N55</span> BMW engine manufactured from 2009–2019

The BMW N55 is a turbocharged straight-six petrol (gasoline) engine that began production in 2009. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo.

<span class="mw-page-title-main">BMW N57</span> Reciprocating internal combustion engine

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. 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.

The BMW N43 is a naturally aspirated four-cylinder petrol engine which was sold from 2006 to 2013. It replaced both the BMW N46 and BMW N45 engines. However the N43 was not sold in countries with high sulfur fuel, therefore the N45/N46 engines remained in production alongside the N43.

<span class="mw-page-title-main">BMW 5 Series (F10)</span> Line of German executive cars

The sixth generation of the BMW 5 Series consists of the BMW F10, BMW F11 and BMW F07 executive cars and were produced by BMW from January 2010 to 2017, with F10 being launched on 20 March 2010 to domestic market and F11 in the summer of 2010. The F07 Gran Turismo was produced from early September 2009 to 2017, being launched in the domestic German market in late October 2009.

<span class="mw-page-title-main">BMW N20</span> Reciprocating internal combustion engine

The BMW N20 is a 1.6 and 2.0 L turbocharged four-cylinder DOHC petrol engine with variable valve lift and variable valve timing which replaced the N53 and was produced from 2011 to 2017 by BMW. Although the N20 is a four-cylinder engine, it is considered a replacement for the naturally aspirated six-cylinder N52/N53 because it powers equivalent models, producing similar horsepower to the N52/N53 with greater low-rpm torque and better efficiency.

The ZF S6-37 is a 6-speed manual transmission manufactured by ZF Friedrichshafen AG. It is designed for longitudinal engine applications, and is rated to handle up to 370 newton-metres (273 lbf⋅ft) of torque.

The ZF S6-53 is a 6-speed manual transmission manufactured by ZF Friedrichshafen AG. It is designed for longitudinal engine applications, and is rated to handle up to 600 newton-metres (443 lbf⋅ft) of torque.

References

  1. ↑ "BMW's N52 versus N53 - what are we missing?". paultan.org.
  2. ↑ "Metric.or.kr" (PDF). Archived from the original (PDF) on 2019-09-29. Retrieved 2012-08-05.
  3. 1 2 "BMW N53B25 Engine". www.mywikimotors.com. Retrieved 24 November 2017.
  4. ↑ "BMW Straight 6 Engine - N Series". BMWInformation.com. Archived from the original on 21 April 2008.
  5. 1 2 3 4 "Engine specifications for N53 engines". www.bmwheaven.com.
  6. ↑ "6' E63 LCI 630i Ignition coil/spark plug". www.realoem.com. Retrieved 30 November 2017.
  7. ↑ "BMW Engine Codes". racingdynamics.com.
  8. ↑ "2009 BMW 523i F10 Specifications". www.carfolio.com. Retrieved 30 November 2017.
  9. ↑ "BMW E60 5 Series 525i Specs". www.ultimatespecs.com. Retrieved 30 November 2017.
  10. ↑ "2010 BMW 528i (model since mid-year 2010 for Europe ) specs review". www.automobile-catalog.com. Retrieved 30 November 2017.
  11. ↑ "2007 BMW 630i Coupé specifications". www.carfolio.com. Retrieved 30 November 2017.
  12. ↑ "13517616170 Exch high-pressure pump". www.realoem.com. Retrieved 28 November 2017.
  13. ↑ "What's the deal with all these Lemon/Buyback 335i's?". www.bimmerfest.com.
  14. ↑ "BMW N53B25 Engine". www.mywikimotors.com. Retrieved 28 November 2017.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.