BMW N53: Difference between revisions

BMW N53 engine
BMW N53 engine
Overview
Production	2006–2013
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 material	Magnesium-Aluminium
Cylinder head material	Aluminium
Valvetrain	DOHC, with VVT
Combustion
Fuel type	Petrol
Chronology
Predecessor	BMW N52
Successor	BMW N54

Browse history interactively

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Latest revision as of 00:54, 31 October 2024

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

In European markets, the N53 began to replace its port injected parent, the BMW N52 in 2007. Markets such as the United States, Canada, Australia and Malaysia retained the N52 as the N53 was deemed unsuitable due to the high sulphur content of local fuel.^[1]

The N52 and N53 are the last naturally aspirated straight-six engines produced by BMW, ending a history of continuous production of this engine configuration since the BMW M30 in 1968. In 2011, the N52 began to be replaced by the BMW N20 turbocharged four-cylinder engine. N53 production ceased in 2013.

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

Design

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 Code	Displacement	Power	Torque	Years
N53B25	2,497 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
N53B30	2,996 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]

2006-2010 E60/E61 523i

N53B30 (150 kW)

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

Applications:^[8]

2009-2011 F10/F11 523i

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:

2007-2013 E90/E91/E92/E93 325i
2006-2010 E60/E61 525i

N53B30 (190 kW)

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

Applications:

2009-2011 F10/F11 528i

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:

2007-2010 E60/E61 530i
2007-2010 E63 630i
2007-2013 E90/E91/E92/E93 330i
2011-2013 F10 530i

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.

References

^ "BMW's N52 versus N53 - what are we missing?". paultan.org.
^ "Metric.or.kr" (PDF). Archived from the original (PDF) on 2019-09-29. Retrieved 2012-08-05.
^ ^a ^b "BMW N53B25 Engine". www.mywikimotors.com. 8 March 2015. Retrieved 24 November 2017.
^ "BMW Straight 6 Engine - N Series". BMWInformation.com. Archived from the original on 21 April 2008.
^ ^a ^b ^c ^d "Engine specifications for N53 engines". www.bmwheaven.com.
^ "6' E63 LCI 630i Ignition coil/spark plug". www.realoem.com. Retrieved 30 November 2017.
^ "BMW Engine Codes". racingdynamics.com.
^ "2009 BMW 523i F10 Specifications". www.carfolio.com. Retrieved 30 November 2017.
^ "BMW E60 5 Series 525i Specs". www.ultimatespecs.com. Retrieved 30 November 2017.
^ "2010 BMW 528i (model since mid-year 2010 for Europe ) specs review". www.automobile-catalog.com. Retrieved 30 November 2017.
^ "2007 BMW 630i Coupé specifications". www.carfolio.com. Retrieved 30 November 2017.
^ "13517616170 Exch high-pressure pump". www.realoem.com. Retrieved 28 November 2017.
^ "What's the deal with all these Lemon/Buyback 335i's?". www.bimmerfest.com.
^ "BMW N53B25 Engine". www.mywikimotors.com. 8 March 2015. Retrieved 28 November 2017.

[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.

[mywikimotors.com_N53B35-3] "BMW N53B25 Engine". www.mywikimotors.com. 8 March 2015. Retrieved 24 November 2017.

[4] "BMW Straight 6 Engine - N Series". BMWInformation.com. Archived from the original on 21 April 2008.

[bmwheaven-5] "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. 8 March 2015. Retrieved 28 November 2017.

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@@ Line 2: / Line 2: @@
 |name          = BMW N53 engine
 |image         = 530i_Touring_Msport_LCI_59.JPG
-|production    = 2006–2014
+|production    = 2006–2013
 |configuration = [[Straight-six engine|Straight-6]]
 |block         = Magnesium-Aluminium
 |head          = Aluminium
-|valvetrain    = [[Overhead_camshaft#Dual_overhead_camshaft|DOHC]], with [[variable valve timing|VVT]] & [[variable valve lift|VVL]]
+|valvetrain    = [[Overhead_camshaft#Dual_overhead_camshaft|DOHC]], with [[variable valve timing|VVT]]
 |fueltype      = [[Petrol engine|Petrol]]
-|displacement  = {{convert|2.5-3.0|L|cuin|0|abbr=on}}
+|displacement  = {{convert|2497|cc|cuin|0|abbr=on|lk=on}}<br>{{convert|2996|cc|cuin|0|abbr=on|lk=on}}
+| bore = {{convert|82|mm|abbr=on}}<br>{{convert|85|mm|abbr=on}}
+| stroke = {{convert|78.8|mm|abbr=on}}<br>{{convert|88|mm|abbr=on}}
 |predecessor   = [[BMW N52]]
-|successor     = None
+|successor     = [[BMW N54]]<!--Thread on talk page regarding this parameter.-->
 }}
-The '''BMW N53''' is a [[naturally aspirated engine|naturally aspirated]] straight-six petrol engine which was produced from 2006 to 2014. The N53 replaced the [[BMW N52]] and was released in 2006 in the post-facelift [[BMW 5 Series (E60)|E60 5 Series]].
+The '''BMW N53''' is a [[Naturally aspirated engine|naturally aspirated]] [[Straight-six engine|straight-6]] [[petrol engine]] which was produced from 2006 to 2013. The N53 replaced the [[BMW N52]] in certain markets and debuted on the post-facelift [[BMW 5 Series (E60)|E60 5 Series]].
-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.<ref>{{cite web|title=BMW's N52 versus N53 - what are we missing?|url=http://paultan.org/2010/05/11/bmws-n52-versus-n53-what-are-we-missing|website=paultan.org}}</ref> Instead, these regions continued to use its predecessor, the N52 engine.
+In European markets, the N53 began to replace its port injected parent, the [[BMW N52]] in 2007. Markets such as the United States, Canada, Australia and Malaysia retained the N52 as the N53 was deemed unsuitable due to the high sulphur content of local fuel.<ref>{{cite web|title=BMW's N52 versus N53 - what are we missing?|url=http://paultan.org/2010/05/11/bmws-n52-versus-n53-what-are-we-missing|website=paultan.org}}</ref>
-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.
+The N52 and N53 are the last naturally aspirated straight-six engines produced by BMW, ending a history of continuous production of this engine configuration since the [[BMW M30]] in 1968. In 2011, the N52 began to be replaced by the [[BMW N20]] turbocharged four-cylinder engine. N53 production ceased in 2013.
 There is no [[BMW M]] version of the N53. The [[BMW N54]] turbocharged straight-6 engine was produced alongside the N53.
@@ Line 23: / Line 25: @@
 __TOC__
 {{clear right}}
 == Design ==
 [[File:BMW-N52 DetailVanos.jpg|thumb|right|Double-VANOS, as seen on an [[BMW N52|N52]] engine]]
-Compared with its N52 predecessor which was port-injected, the N53 uses [[gasoline direct injection|direct injection]]. The direct injection system uses piezoelectric fuel injectors which inject into the combustion chamber, using a ''stratified lean mixture'' operation.<ref>http://metric.or.kr/Common/download/download_file.asp?dpath=thesis&fname=car-j-1906-0082.pdf {{dead link|date=December 2015}}</ref> The compression ratio was increased to 12.0:1 for the N53.<ref name="mywikimotors.com N53B35"/>
+Compared with its N52 predecessor which was port-injected, the N53 uses [[gasoline direct injection|direct injection]]. The direct injection system uses piezoelectric fuel injectors which inject into the combustion chamber, using a ''stratified lean mixture'' operation.<ref>{{Cite web |url=http://metric.or.kr/Common/download/download_file.asp?dpath=thesis&fname=car-j-1906-0082.pdf |title=Metric.or.kr |access-date=2012-08-05 |archive-date=2019-09-29 |archive-url=https://web.archive.org/web/20190929103006/http://metric.or.kr/Common/download/download_file.asp%3Fdpath%3Dthesis%26fname%3Dcar-j-1906-0082.pdf |url-status=dead }}</ref> The compression ratio was increased to 12.0:1 for the N53.<ref name="mywikimotors.com N53B35"/>
-As per the N52, the N53 has [[VANOS#Double VANOS|double-VANOS]] (variable valve timing) and a [[magnesium alloy]] block.<ref name="mywikimotors.com N53B35">{{cite web|title=BMW N53B25 Engine|url=http://mywikimotors.com/n53b25/|website=www.mywikimotors.com|accessdate=24 November 2017}}</ref> Unlike the N52, the N53 does not have [[Valvetronic]] (variable valve lift), due to space limitations in the cylinder head.<ref>{{cite web|url=http://www.bmwinformation.com/engines/straight6_n.html|title=BMW Straight 6 Engine - N Series |website=BMWInformation.com|archiveurl= https://web.archive.org/web/20080421234931/http://www.bmwinformation.com/engines/straight6_n.html| archivedate= 21 April 2008}}</ref><ref name=bmwheaven>{{cite web|title=Engine specifications for N53 engines|url=http://www.bmwheaven.com/database/engine.php?type=N53|website=www.bmwheaven.com}}</ref>
+As per the N52, the N53 has [[VANOS#Double VANOS|double-VANOS]] (variable valve timing) and a [[magnesium alloy]] block.<ref name="mywikimotors.com N53B35">{{cite web|title=BMW N53B25 Engine|url=http://mywikimotors.com/n53b25/|website=www.mywikimotors.com|date=8 March 2015 |accessdate=24 November 2017}}</ref> Unlike the N52, the N53 does not have [[Valvetronic]] (variable valve lift), due to space limitations in the cylinder head.<ref>{{cite web|url=http://www.bmwinformation.com/engines/straight6_n.html|title=BMW Straight 6 Engine - N Series |website=BMWInformation.com|archiveurl= https://web.archive.org/web/20080421234931/http://www.bmwinformation.com/engines/straight6_n.html| archivedate= 21 April 2008}}</ref><ref name=bmwheaven>{{cite web|title=Engine specifications for N53 engines|url=http://www.bmwheaven.com/database/engine.php?type=N53|website=www.bmwheaven.com}}</ref>
 The [[bore (engine)|bore]] of {{convert|85|mm|in|2|abbr=on}} and [[stroke (engine)|stroke]] of {{convert|88|mm|in|2|abbr=on}} are the same as the N52. Each cylinder has [[Distributor#Direct and distributorless ignition|coil-on-plug ignition]], as per the N52.<ref>{{cite web|title=6' E63 LCI 630i Ignition coil/spark plug|url=http://www.realoem.com/bmw/en/showparts?id=EA31-EUR-11-2007-E63N-BMW-630i&diagId=12_1417|website=www.realoem.com|accessdate=30 November 2017}}</ref>
@@ Line 40: / Line 43: @@
 |rowspan=4|'''N53B30'''||rowspan=4|{{convert|2996|cc|cuin|abbr=on|1}}|| {{convert|150|kW|bhp|0|abbr=on}} <br/> at 6,100&nbsp;rpm||{{convert|270|Nm|lbft|0|abbr=on}} <br/> at 1,500-4,250&nbsp;rpm|| 2009-2011
 |-
-| {{convert|160|kW|bhp|0|abbr=on}} <br/> at 6,100&nbsp;rpm||{{convert|270|Nm|lbft|0|abbr=on}} <br/> at 2,400-4,200&nbsp;rpm|| 2007-2011
+| {{convert|160|kW|bhp|0|abbr=on}} <br/> at 6,100&nbsp;rpm||{{convert|270|Nm|lbft|0|abbr=on}} <br/> at 2,400-4,200&nbsp;rpm|| 2007-2013
 |-
 | {{convert|190|kW|bhp|0|abbr=on}} <br/> at 6,600&nbsp;rpm||{{convert|310|Nm|lbft|0|abbr=on}} <br/> at 2,600-5,000&nbsp;rpm|| 2009-2011
@@ Line 63: / Line 66: @@
 Applications:
-* 2007-2011 [[BMW E90|E90/E91/E92/E93]] 325i
+* 2007-2013 [[BMW E90|E90/E91/E92/E93]] 325i
 * 2006-2010 [[BMW E60|E60/E61]] 525i
@@ Line 78: / Line 81: @@
 * 2007-2010 [[BMW E60|E60/E61]] 530i
 * 2007-2010 [[BMW E63|E63]] 630i
-* 2007-2013 [[BMW E90|E90/E91/E92/E93]] 330i
+* 2007-2013 [[BMW 3 Series (E90)|E90/E91/E92/E93]] 330i
 * 2011-2013 [[BMW F10|F10]] 530i
 === High-Pressure Fuel Pump failures ===
-The N53 uses the same High-Pressure Fuel Pump (HPFP) as the N54 turbocharged straight-six engine,<ref>{{cite web|title=13517616170 Exch high-pressure pump|url=http://www.realoem.com/bmw/en/partxref?id=ND71-EUR-03-2007-E60N-BMW-530i&mg=13&sg=15&diagId=13_1183&q=13517616170&series=E92|website=www.realoem.com|accessdate=28 November 2017}}</ref> which had [[BMW N54#High-Pressure_Fuel_Pump_failures|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.<ref>{{Cite web|url=http://www.bimmerfest.com/forums/showthread.php?t=323430 |title=What's the deal with all these Lemon/Buyback 335i's?| website=www.bimmerfest.com }}</ref>
+The N53 uses the same High-Pressure Fuel Pump (HPFP) as the [[BMW N54]] turbocharged straight-six engine,<ref>{{cite web|title=13517616170 Exch high-pressure pump|url=http://www.realoem.com/bmw/en/partxref?id=ND71-EUR-03-2007-E60N-BMW-530i&mg=13&sg=15&diagId=13_1183&q=13517616170&series=E92|website=www.realoem.com|accessdate=28 November 2017}}</ref> which had [[BMW N54#High-Pressure_Fuel_Pump_failures|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.<ref>{{Cite web|url=http://www.bimmerfest.com/forums/showthread.php?t=323430 |title=What's the deal with all these Lemon/Buyback 335i's?| website=www.bimmerfest.com }}</ref>
-Failures of the N53 HPFP have been reported,<ref>{{cite web|title=BMW N53B25 Engine|url=http://mywikimotors.com/n53b25/|website=www.mywikimotors.com|accessdate=28 November 2017}}</ref> although it is not known whether failure in the N53 is as common as the N54.
+Failures of the N53 HPFP have been reported,<ref>{{cite web|title=BMW N53B25 Engine|url=http://mywikimotors.com/n53b25/|website=www.mywikimotors.com|date=8 March 2015 |accessdate=28 November 2017}}</ref> although it is not known whether failure in the N53 is as common as the N54.
 ==See also==
@@ Line 97: / Line 100: @@
 {{DEFAULTSORT:Bmw N53}}
 [[Category:BMW engines|N53]]
-[[Category:Inline-six engines]]
+[[Category:Straight-six engines]]
+[[Category:Gasoline engines by model]]