This is one of those reference charts that may come in handy at some point. Curious about distinguishing the various BMW engines? Just scroll down this page.
This info is from the Unix Nerd, and a link to his website is at the bottom of this page. He has a lot of other great stuff there. Please check it out.
Also, if you are interested in this kind of info, you may want to check this out:
http://baurspotting.blogspot.com/2013/08/bmw-e-numbers-and-development-dates.html
The Unix Nerd's Domain
BMW E Numbers List
Car Model Designations
This info is from the Unix Nerd, and a link to his website is at the bottom of this page. He has a lot of other great stuff there. Please check it out.
Also, if you are interested in this kind of info, you may want to check this out:
http://baurspotting.blogspot.com/2013/08/bmw-e-numbers-and-development-dates.html
Car Model Designations
| Model | Year | Cars |
| 114 / E6 E10 / E12 | 67 - 77 | 1502, 1600, 1602, 1800, 1802, 2000, 2002ti/tii E10 was the touring three door model E20 was the 2002 tii & turbo |
| E3 | 68 - 77 | 2500, 2800, Bavaria, 3.0S/Si, 3.3Li |
| E9 | 65- 75 | 2000CS, 2500CS, 2800CS, 3.0CS/i/L |
| E12 | 72- 81 | 518, 518i, 520, 520i, 535, 525i, 528i, 530i, M535i |
| E21 | 75-83 | 316, 318i, 320, 320i/s, 323i |
| E23 | 78-87 | 725i, 728, 728i, 730i, 732i, 733i, 735i, 745i, L7 |
| E24 | 77-89 | 628i, 630CS/i, 633CSi, 635CSi, M635CSi, L6 (highline) |
| E26 | 78-81 | M1 |
| E28 | 82-88 | 518i, 520i, 524td, 525i/e, 528e, 533i, 535i, M535i, M5 |
| E30 | 83-91 | 316, 316i, 318i/s, 320i, 323i, 324td, 325e, 325i/ix/is, M3 |
| E31 | 90 on | 840i, 840Ci, 850i, 850Ci, 850CSi |
| E32 | 88-94 | 730i, 735i/iL, 740i/iL, 750iL |
| E34 | 88-96 | 518i, 520i, 525i/x, 525td/s, 530i, 535i, 540i, M5 |
| Z1 (E30) | 89-91 | Z1 convertible |
| Z3 (E36/7) | 96 on | Z3 convertible and Z3 coupe (Z5) |
| E36 | 91 - 99 | 316i, 318i/s/ti/tds, 320i, 323i, 325i/td/tds, 328i/s, M3,Z3 |
| E38 | 95 - 2002 | 728i, 730i, 730d, 735i, 740i/iL, 750i/L |
| E39 | 97 - 2003 | late 1990s 5 series 520i, 523i, 528i, 530d, 535i, 540i, M5 |
| E46 | late 98 - 2005 | Fourth 3 series |
| E52 | 2000 - 2002 | Z8 Roadster |
| E53 | 2000 - 2007 | X5 four wheel drive SAV |
| E60 E61 | 2002 | Current five series, E61 is touring variant |
| E63 | late 2001 | New six series at last! 635Ci, 645Ci, M6. |
| E64 | 2003 | Six series cabriolet |
| E65 / E67 | 2002 | "Bangle" seven series (the ugly one) |
| E66 / E68 | 2002 | long wheel base E65 seven series |
| E70 | 2007 | Second generation X5 |
| E71 E72 | 2007 | X6, Coupe version of X5 |
| E81 E82 E87 E88 | late 2002 | 1 series |
| E83 | 2003 | X3 SAV |
| E85 | 2002 | Z4 Roadster |
| E86 | 2006 | Z4 Coupe |
| E89 | 2009 | Second generation Z4 |
| E90 | 2005 | Fifth three series, 4 door saloon |
| E91 | 2005 | Fifth three series, touring five door |
| E92 | 2006 | Fifth three series, coupe |
| E93 | 2007 | Fifth three series, cabriolet |
| F01 F02 F03 F04 | 2009 | New seven series |
| F10 F11 | 2010 | New five series |
Engine Designations
Not all engines are available in all markets. For example, smaller engines tend not to be available in the US. Diesel engines were not available in the UK until fairly recently. Power figures are for european models, most older US engines tend to be restricted by emissions regulations.
Engines are designated in the format M10B20, which is the 2.0 version of the M10.
S implies a Motorsport engine for an //M car, such as S14B23 for the E30 M3 2.3's engine.
BMW changed the M in favour of N for engines developed after about 2001, so we now have N52B30. N engines tend to be Valvetronic unless they're turbocharged.
You can also read this page about BMW engine history.
Not all engines are available in all markets. For example, smaller engines tend not to be available in the US. Diesel engines were not available in the UK until fairly recently. Power figures are for european models, most older US engines tend to be restricted by emissions regulations.
Engines are designated in the format M10B20, which is the 2.0 version of the M10.
S implies a Motorsport engine for an //M car, such as S14B23 for the E30 M3 2.3's engine.
BMW changed the M in favour of N for engines developed after about 2001, so we now have N52B30. N engines tend to be Valvetronic unless they're turbocharged.
You can also read this page about BMW engine history.
| BMW Code | Size(litres) | Cyl | Valves per Cyl | Power (bhp@rpm) | Torque (lb/ft@rpm) | BHP/ litre | Torque/ litre | Manufactured | Bore x Stroke (mm) | Timing | Weight (kg) | VANOS | Used in | Notes & Comments |
| M10 | 1.51.6 1.8 1.8i  2.0  2.0i 2.0tii 2.0 turbo | 4 | 2 | 75 @ ?85 @ 5700 90->98 @ 5250 105 @ ? 100 @ 5500 125 @ 5700 130 @ 5800 170 @ 5800 | ?91@ 3000 108 @ 3000 106 @ ? 116 @ 3000 129 @ 4350 131 @ 4500 181 @ 4000 | 5053.1 52.2 58.3 50 62.5 65 85 | ?56.9 60 59 58 65 65 90.5 | 7566 -> 69? 71 -> 87 81 -> 87 68 -> 75 E21 320i / E12 520i 71 -> 75 73 -> 74 | 82x7184x71 89x71 89x71 89x80 89x80 89x80 89x80? | Chain | 82 | No | 15021600-2 1802, E21/E30 316 E28 518i, early E30 318i 2002, E21 320 2002 tii 2002 turbo | 2002 turbo was world's first production turbo.2002ti had 120bhp Also in E21 316, 318i, 320/4, E30 316 |
| M20(little six) | 2.02.0i  2.3i 2.5i 2.7eta | 6 | 2 | ?129 @ 6000 143 @ 5300 170 @ 5800 125 @ 4250 | ?120 @ 4000 151 @ 4000 167 @ 4000 177 @ 3250 | ?64.5 62.2 68 46.3 | ?60 65.7 66.8 65.6 | 77->92 | 80x6680x66 80x76.8 84x75 84x81 | Belt | 117 | No | E21 320E21 320i/6, E30, E34 E21/30 323i 325i, E34 525i 325e,528e | The "little six", called M60 initially.Early 2.3 in E21 323i was Jetronic-K, E30 323i was Jetronic-L. Later E30 323i's have 10bhp more. Eta is lower rpm fuel saver. Can be identified bt longer intake manifold runners, has fewer camshaft bearings. |
| M30(big six) | 2.5 carb2.5i 2.8 carb 2.8i 3.0 early  3.0 late 3.3  3.5  | 6 | 2 | 150 @ ?150 @ 5500 165? 184 @ 5800 185->208 @ ? 188@ 5800 200->206 (euro) 218@ 5200 | ?159 @ 4000 ? 177 @ 4000 188 @ ? 192 @ 4000 209 @ ? 229 @ 4000 | 6060 58.9 65.7 61.7 62.7 60.6 62.3 | ?63.6 ? 63.2 62.7 64 63.3 67.4 | 73->8181->88 74->77 81->87/8 1970s 1987->93 early 80s 77/8 -> 93 | ?? 86x80 86x80 89x80 89x80 86x86 92x86 | Chain | 143 | No | E12 525E28 525i, E23 725i E12 528, 2800/CS E28 528i, E23 728i 3.0CS/i/L,3.0Si 6 cyl 530i & 730i 3.3Li/633, 732i/733i 535i,635i,735i | Classic "big six". |
| M102 | 3.4  | 6 | 2 | 252 @ 5200 | 279 @ 2200 | 74.1 | 82.1 | 84-> 86? | ? | Chain | 145 | No | E23 745i | M30 with turbo. Early versions wee 3.3. |
| M40 | 1.61.8 | 4 | 2 | 102 @ 5500115 @ 5500 | 105 @ 4250122 @ 4250 | 63.863.9 | 63.867.8 | 87? -> late 93 | 84x7284x81 | Belt | 81 | No | post -87 E30 316i, 318i, 518i, Pre-93 E36 316i, euro 318i. | Replaced by M43 |
| M42 | 1.8 | 4 | 4 | 140 @ 6000 | 129 @ 4500 | 77.8 | 71.7 | 89 -> 96 | 84x81 | Chain | 100 | No | E30/36 318is, Z3 | Beware of proile gasket in pre 93 engines. |
| M43 | 1.61.8  | 4 | 2 | 102 @ 5500115 @ 5500 | 111 @ 3900124 @ 3900 | 63.863.9 | 69.368.9 | late '93 -> late 98 | 84x7284x81 | Chain | 83 | No | Post '93 E36 316i, euro 318i (except Coupe), 518i | Euro only, replaced M40 |
| M43TU | 1.9 | 4 | 2 | 103 @ ?118 @ 5500 | 122 @ ?133 @ 3900 | 54.262.1 | 64.270 | 98 on | 85x83.5 | Chain | 83? | No | E46 318i all models inc. Coupe | 316i used detuned 1.9.Replacement for M43. Has twin balancer shafts to improve smoothness. Easy to spot, M43tu has plastic intake manifold vs metal on M43. |
| M44 | 1.9  | 4 | 4 | 140 @ 6000 | 133 @ 4300 | 73.7 | 70 | 96 on | 85x83.5 | Chain | 102 | No | E36 318iS, Z-3 | Improved M42, low friction valve gear and MAF instead of AFM. |
| M50/M50TU | 2.02.5 3.0 | 6 | 4 | 150 @ 5900192 @ 5900 240 @ 6000 | 140 @ 4700181 @ 4700 (4200 for TU) 225 @ 4250 | 7576.8 80 | 7072.4 75 | 89? -> 9889? -> 95 95 | 80x6684x75 ? | Chain | 136 | Single on TU | 320i,520i325i, 525i Early US E36 M3 | TU model had VANOS. I don't have earlier M50 figures. |
| M52/M52TU | 2.02.5 2.8  3.0 3.2  | 6 | 4 | 150 @ 5900170 @ 5500 193 @ 5300 241 @ 6900 | 140 @ 4200180 @ 3950 207 @ 3950 236 @ 3600 | 7568 68.9 75.3 | 7072 74 73.8 | 96 on95 on 95 on 96->99 | 80x6684x75 84x84 ? | Chain | 118 euro140? USA | SingleDouble on TU | E39 520iE36 323i, E39 523i E36 328i, E39 528i, 728i Late US E36 M3 | Iron block in US, Alloy in europe. |
| M54 | 2.22.5 3.0  | 6 | 4 | 170 @ ?192 @ ? 231 @ ? | 155 @ 3500181 @ 3500 221 @ 3500 | 77.376.8 77 | 70.572.4 73.7 | autumn 2000autumn 2000 early 2000 | ? | Chain | 126 | Double | '99 Z3, E39 and E46 six cylinder models | Based on M52. Shows what the M52 should have been!Main difference is double VANOS and a less restrictive intake manifold. |
| M60 | 3.04.0  | V8 | 4 | 218 @ 5800286 @ 5800 | 229 @ 4500295 @ 5100 | 72.771.5 | 76.373.8 | April 92 -> 96 | 84x67.689x80 | Chain | 146 | No | 530i 730i540i, 740i, 840i | All alloy. |
| M62 | 3.54.4  4.6 | V8 | 4 | 235 @ 5700286 @ 5700 350? | 236 @ 4700310 @ 3900 ? | 67.165 76? | 67.470.5 ? | late 96 on | 84x78.992x82.7 ? | Chain | 140 | Single after 98 | 730i540i, 740i,840i | Improved M60 |
| M70 | 5.0  | V12 | 2 | 300 @ 5200 | 332 @ 3900 | 60 | 66.4 | 88-> 94 | 84x75 | Chain | 155 | No | 750il 850i | Classic V12 |
| M73 | 5.4 | V12 | 2 | 326 @ 5000 | 361 @ 3900 | 60.4 | 66.9 | 95/6? on | 85x79 | Chain | 150 | Single after 98 | E38 750iL ? | Newest V12 |
| N42 | 1.82.0  | 4 | 4 | 113 @ 5500140 @ 6000 | 129 @ 3750147 @ 3750 | 62.870 | 71.773.5 | 2001 - 2003 | ? | Chain | 100 (short) | Valvetronic | E46 three | BMW's first Valvetronic engine |
| N43 | 1.82.0 | 4 | 4 | 143 @ 6000170 @ 6700 | 139 @ 4250154 @ 4250 | 79.485 | 77.277 | 2007 only | 84x90 | Chain | 103 (short) | Valvetronic | E90 three | Replaced by N46, quite rare. Used High Precision injection.1.8 version was a detuned 2.0, same block |
| N45 / N45N | 1.62.0 | 4 | 4 | 115 @ 6000173 @ 7000 | 110 @ 4300147 @ 4250 | 71.986.5 | 68.873.5 | 2007 on | ?? | Chain | 79 (short) | NOT Valvetronic | E90 316i / 116i | 2.0 was used in rare E90 320Si saloon homologation special. Normal throttle body makes more high end bhp than valvetronic. |
| N46 / N46N | 1.82.0  | 4 | 4 | 115 @ 5500150 @ 6200 | 129 @ 3750147 @ 3750 | 63.975 | 71.773.5 | 2004 on | ?? | Chain | 96 (short) | Valvetronic | E90 three, 1 series | 1.8 version was a detuned 2.0, same block but different ecu and camshafts |
| N52 / N52N | 2.5 (523i)2.5 3.0  | 6 | 4 | 175 @ 5800215 @ 6500 272 @ 6650 | 170 @ 3500-5000184 @ 2750-4250 232 @ 2750-4250 | 7086 90.7 | 6873.6 77.3 | 2004 to 2007 | ?? 85x88 | Chain | 161 | Valvetronic. | Used in E90, E65, etc. | BMW's first Valvetronic six. Magnesium and aluminium block!US late e60 528 / e90 328 had detuned 3.0 engines. e60 523i had detuned N52B25. |
| N53 | 2.53.0 | 6 | 4 | ?272 @ 6700 | ?236 @ 2750 | ?90.7 | ?78.7 | 2007 on | ?? | Chain | 126 (short) | Non Valvetronic.Dual VANOS | E90 / 1 series / E60 | Replacement for N52 using high pressure injection (GDI).Not sold in USA. |
| N54 | 3.0 | 6 | 4 | 306 @ 5800 | 295 @ 1300-5000 | 102 | 98.3 | 2006 on | 84x89.6 | Chain | 195 | Non Valvetronic.Dual VANOS | E90 335i / E60 535i | Twin turbos in series. 306bhp is a very conservative figure, can be a lot higher in real life. Based on M54 block, not N54 magnesium/aluminium block. |
| N62 | 3.64.0 4.4 4.8 | 8 | 4 | 272 @ 6200306 @ 6300 319 or 333 @ 6100 360 or 367 @ 6300 | 266 @ 3700288 @ 3500 325 or 332 @ 3700 369 or 361 @ 3400 | 75.676.5 73.9 75.4 | 73.972 75 76 | 2003 on | ?? 92x82.7 93x88 | Chain | 265 | ValvetronicDual VANOS | X5, E65, E60, etc. | Replacement for M62 |
| N63 | 4.4 | 8 | 4 | 400 @ ? | 450 @ ? | 90.9 | 102.3 | 2008 on | ? | Chain | ? | NOT ValvetronicDual Vanos | X6 | Reverse flow V8! Twin turbos are in the V valley, intakes are at the sides to improve packaging. |
| N73 | 6.0 | 12 | 4 | 445 @ 6000 | 441 @ 3950 | 74.2 | 73.5 | 2003 on | ? | Chain | ? | Valvetronic | E65 670Li | BMW's largest production engine, 6.0 V12. Very economical for it's size. |
| S14 | 2.3  2.5 | 4 | 4 | 200 @ 6750215 @ 6750 | 177 @ 4600181 @ 4750 | 8786 | 7772.4 | 87 -> 8990 -> 91 | 93.2x83.8? | Chain | 106 | No | E30 M3 | Several models used. Basically a four cylinder S38. |
| S38 early | 3.5  | 6 | 4 | 277 @ 6500286 @ 6500 | 238 @ 5000245 @ 4500 | 79.181.7 | 6870 | 79 - > 8086 -> 90 | 93.2x83.8 | Chain | 146 | No | M1E28 M5, M6 | 24 valve M30 |
| S38 late | 3.6  3.8  | 6 | 4 | 315 @ 6900340 @ 6900 | 260 @ 4750289 @ 4500 | 87.589.5 | 72.276 | 88 -> 9192 -> 96 | ? | Chain | 151 | No | E34 M5 | Spotter's tip: 3.8 used one coil per cylinder, 3.6 had a normal distributor. |
| S50 | 3.0 | 6 | 4 | 286 @ 7000 | 236 @ 3600 | 95.3 | 78.7 | 92 ->95 | ? | Chain | 152 | Single | E36 M3 | early euro |
| S52 | 3.2 | 6 | 4 | 321 @ 7400 | 258 @ 3250 | 100.3 | 80.6 | 96 -> 2000 | 86.4x91 | Chain | 152 | Double | E36 M3 (Euro) | Late model Euro. |
| S54 | 3.2 | 6 | 4 | 343 @ 7900 | 269 @ 4900 | 107.2 | 84.1 | 2001 on | ? | Chain | 217 | Double | E46 M3 //M Roadster | E46 M3 M Roadster has 321bhp.US version 333bhp or 315 for Roadster. |
| S62 | 4.9  | 8 | 4 | 400 @ 6600 | 369 @ 3800 | 81.6 | 75.3 | 99 on | 94x89 | Chain | 158 | Dual | E39 M5 | Double VANOS. |
| S65 | 4.0 | 8 | 4 | 420 @ 8300 | 295 @ 3900 | 105 | 73.8 | 2007 on | 92x75.2 | Chain | 202 | Dual | E90 M3 | 4 litre V8, first V8 in an M3. Wet sump, unlike V10 S85 version. |
| S70 | 5.6 | 12 | 2 | 380 @ 5300 | 406 @ 4000 | 67.9 | 72.5 | 94->97? | ? | Chain | 165 | No? | E31 850CSi | //M Tweaked M70 |
| S85 | 5.0 | 10 | 4 | 507 @ 7750 | 384 @ 6100 | 101.4 | 76.8 | 2005 on | 92x75.2 | Chain | ? | Double | E60 M5, new M6 | V10, inspired by Formula 1 engine. Dry sump! |
| M21 Diesel | 2.42.4 Turbo | 6 | 2 | 86 @ 4600115 @ 4800 | 112 @ 2500155 @ 2400 | 35.847.9 | 46.764.6 | 85 -> 8683-> 91? | 80x81 | Belt | 126 | No | 324td, 524d/td | Never available in UK. Was used by Ford.in US. |
| M41Diesel | 1.7 turbo | 4 | 2 | 90 @ 4400 | 140 @ 2000 | 53 | 82.4 | 95 on | 80x82.8 | Chain? | 108 | No | E36 318TDS | Cut down 2.5tds |
| M51 Diesel | 2.5 TD2.5 TDS | 6 | 2 | 115 @ 4800143 @ 4800 | 162 @ 2400206 @ 2200 | 4657.2 | 64.882.4 | 95 on | 80x82.8 | Chain | 132 | No | E36 325TD/S, E34, E39 | TDS has intercooler |
| M47 / M47N/ M47N2 Diesel | 1.82.0 | 4 | 4 | 115 @ ?136 @ 4000 | 195 @ ?207 @ 1750 | 68 | 103.5 | 98 on | ? | Chain | 117 | No? | E46 320d | Variable incidence turbo. |
| M57 / M57N / M57N2 Diesel | 2.53.0 | 6 | 4 | 170 @ 4000183 @ ? | 258 @ 2000300 @ 1750 | 6861 | 103.2100 | autumn 2000 on | ?84x90 | Chain | 168 | No? | E46, E39 | Replaced M51 M57N is upgraded, later version from mid 2003 |
| M57T30 (306D4) | 3.0 | 6 | 4 | 272 @ 4400 | 413 @ 2000 | 91 | 138 | 2004 on | ? | Chain | ? | No? | E60 535d | Twin turbo M57 |
| M67/ M67TU Diesel | 3.94.4 | V8 | 4 | 245 @ 4000329 @ 3800 | 413 @ 1750-2500552 @ 1900-2500 | 61.274.8 | 103.2125.5 | 98 on | ? | Chain | 192 | No? | E38 740d, E65 740d4.4 in E66 745d | Variable incidence turbo. |
VANOS = variable valve timing.
To convert from ft/lb to Nm multiply by 1.36 (100ft/lb = 136Nm).
To convert from BHP to kW multiply by 0.735 (100 bhp = 73.35kW).
Engine weights are for a dry engine with no manifolds, starter motor, alternator, etc. They will vary by 2 or 3 kg for different types of fuel injection and model year. US M50 had an iron block due to sulphur problems and is much heavier than euro. Anti-pollution kit will add a few kgs to earlier US spec engines. Where you see (short) this means the weight is for a short engine with no heads or ancillaries.
http://www.unixnerd.demon.co.uk/enumber.html
To convert from ft/lb to Nm multiply by 1.36 (100ft/lb = 136Nm).
To convert from BHP to kW multiply by 0.735 (100 bhp = 73.35kW).
Engine weights are for a dry engine with no manifolds, starter motor, alternator, etc. They will vary by 2 or 3 kg for different types of fuel injection and model year. US M50 had an iron block due to sulphur problems and is much heavier than euro. Anti-pollution kit will add a few kgs to earlier US spec engines. Where you see (short) this means the weight is for a short engine with no heads or ancillaries.
http://www.unixnerd.demon.co.uk/enumber.html
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