# Model and engine designations

#### Model Code

#### Vehicle designations

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

#### Old engine codes, no longer used

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

#### Current engine designations

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

Engine designations are followed by a capacity code, e.g.. M20B25 is an M20 engine, of 2.5 liter capacity.

Vehicle designations are occasionally followed by a variant, e.g. E36/7 is the Z3 roadster

E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson