Model Code
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Vehicle designations
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| 114 |
2 door sedan - 1602 - 2002 |
| 115 |
4 door sedan - 1500 |
| 116 |
4 door sedan - 1600 |
| 118 |
4 door sedan - 1800, 1800ti |
| 120 |
4 door sedan - 2000, 2000ti |
| 121 |
Coupe - 2000C, 2000CS, 2000 ti, 2000tilux |
| E3 |
4 door large sedan - 2500 - 3.3 Li, Bavaria |
| E6 |
1600, 1800, 2000 touring |
| E9 |
Coupe (successor to 121) - 2500 CS - 3.0 CSi |
| E10 |
2 door sedan (successor to 114) - 2002, 2002 tii |
| E12 |
5 series up to 81 year model (80 model year in Europe) |
| E12/5 |
As above with M60 engine (not V8) |
| E12/6 |
As above with M68 engine |
| E12/8 |
As above for South Africa |
| E21 |
3 series up to 83 year model |
| E21/5 |
3 series with M60 (not V8) |
| E23 |
7 series up to 87 model year (86 Model year in Europe |
| E24 |
6 series |
| E26 |
M1 |
| E28 |
5 series from 82 year model (81 model in Europe) |
| E30 |
3 series from 84 year model |
| E30/16 |
3 series full time 4 wheel drive |
| E31 |
8 series |
| E32 |
7 series from 88 year model (87 model year in Europe) |
| E34 |
5 series from 89 year model (88 model year in Europe) |
| E36 |
3 series from 92 year model |
| E36/5 |
3 series hatchback from 1996 year model |
| E36/7 |
Z3 Roadster |
| E36/8 |
Z3 Coupe |
| E38 |
7 series from 95 year model |
| E39 |
5 series from 97 year model |
| E46 |
3 series from 1999 model year (4 door) and 2000 model year (coupe) |
| E52 |
Z8 |
| E53 |
X5 SAV |
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Old engine codes, no longer used
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| M41 |
4 cylinder 1.6 liter, DIDTA carburetor - 1600 |
| M42 |
4 cylinder 1.8 liter, DIDTA carburetor - 1800 |
| M60 |
6 cylinder 2.0 and 2.3 liter carburetor or fuel injected |
| M68 |
6 cylinder 2.5 - 2.8 liter carburetor - 2500, Bavaria, 2800CS |
| M69 |
6 cylinder 3.2 liter fuel injection - 633Csi, 733i |
| M86 |
6 cylinder 2.8 liter fuel injection (L Jetronic) - 528i |
| M90 |
6 cylinder 3.5 liter - 635CSi, 535is |
| M92 |
4 cylinder 1.8 liter K Jetronic fuel injection - 320 E21 |
| M99 |
4 cylinder 1.8 liter 2B4 carburetor |
| M102 |
6 cylinder 3.2 liter turbocharged - 745i |
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Current engine designations
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| M10 |
1.8 or 2.0 Liter 4 cylinder single overhead cam , timing chain |
| M20 |
2.0, 2.3, 2.5 or 2.7 Liter 6 cylinder single overhead cam , timing belt |
| M21 |
6 cylinder diesel, 2.4 liter single overhead cam, timing belt. Naturally aspirated or
turbocharged. |
| M30 |
2.8, 3.0, 3.2 or 3.4 Liter 6 cylinder single overhead cam, timing chain. Available
with turbocharger |
| M40 |
4 cylinder single overhead cam, timing belt |
| M41 |
4 cylinder diesel |
| M42 |
1.8 Liter 4 cylinder dual overhead cam |
| M43 |
4 cylinder |
| M44 |
1.9 Liter 4 cylinder 4 valves |
| M50 |
2.0, 2.3 or 2.5 Liter 6 cylinder dual overhead cam |
| M50TU |
2.0, 2.3 or 2.5 Liter 6 cylinder dual overhead cam, variable intake |
| M51 |
6 cylinder diesel |
| M52 |
2.0, 2.3, 2.5 or 2.8 Liter 6 cylinder dual overhead cam, variable intake |
| M52TU |
2.0, 2.3 or 2.8 Liter 6 cylinder dual overhead cam, variable cam timing on both cams. |
| M54 |
2.5 or 3.0 liter 6 cylinder DOHC, dual VaNoS. |
| M60 |
V8 3.0 or 4.0 Liter |
| M62 |
V8 3.5 or 4.4 Liter |
| M62TU |
V8 3.5 or 4.4 Liter, Variable cam timing. |
| M70 |
V12 5.0 Liter - 750iL, 850i, 850Ci |
| M73 |
V12 5.4 Liter - 750iL, 850Ci |
| M88 |
6 cylinder 3.5 liter 24 valve Motorsport engine found in M1 only |
| M88/3 |
6 cylinder 3.5 liter 24 valve Motorsport engine - M635CSi |
| S14 |
2.3 Liter 4 cylinder 16 valve dual overhead cam M power - M3 E30 |
| S38 |
3.6 or 3.8 Liter 6 cylinder dual overhead cam M power - M5 E28, M5 E34 and M6 |
| S50 |
3.0 Liter 6 cylinder dual overhead cam M power, variable cams |
| S50US |
3.0 Liter 6 cylinder dual overhead cam M power, variable intake cam |
| S52 |
3.2 Liter 6 cylinder dual overhead cam M power, variable intake cam |
| S62 |
5.0 Liter V8 quad cam, variable camshaft timing on all 4 cams. |
| S70 |
V12 M power - 850CSi |
