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Engines and Chassis
The designation of every BMW engine starts with a letter. An M means that the engine has been developed by BMW itself, an S
means that it's an M-engine and has been built by BMW Motorsport. After that there is a number that identifies the model.
Whether the engine is a petrol or diesel engine can be seen from the following letter, which is either a B ('Benzin', German word for
petrol) or a D (Diesel), followed by the cubic capacity (rounded). S70B56 therefore
stands for a petrol engine with 5.6l displacement which has been developed by BMW M.
Every evolutionary step of a car model has its own code as well. It starts with an E ('Entwicklung', German word for development)
followed by the identification number. The 8-series has model code E31. That's why this site is named www.e31.net.
The following tables show you what code stands for which engine and in which chassis it was integrated (and vice versa). This data is not (yet)
complete (concerning model years 2001 and up) but at least so far correct.
Petrol Engines |
Code | Type | Displacement | Chassis |
M10 | SOHC-R4 (8V) | 1.6 l | E21 |
1.8 l | E12, E21, E28, E30 |
2.0 l | E12, E21 |
M20 | SOHC-R6 (12V) | 2.0 l | E12, E21, E28, E30, E34 |
2.3 l | E21, E30 |
2.5 l | E12, E30, Z1, E34 |
2.7 l | E28, E30 |
M30 | SOHC-R6 (12V) | 2.5 l | E12, E23, E28 |
2.8 l | E12, E23, E24, E28 |
3.0 l | E12, E23, E24, E32, E34 |
3.2 l | E12, E23, E24, E28, E30 |
3.4 l | E12, E23, E24, E28, E32, E34 |
M40 | SOHC-R4 (8V) | 1.6 l | E30, E36 |
1.8 l | E30, E34, E36, E36 (Z3) |
M42 | DOHC-R4 (16V) | 1.8 l | E30, E36 |
M43 | SOHC-R4 (8V) | 1.6 l | E36 |
1.9 l | E36, E36 (Z3), E46 |
M44 | DOHC-R4 (16V) | 1.9 l | E36 |
M50 | DOHC-R6 (24V) | 2.0 l | E34, E36 |
2.5 l | E34, E36 |
M52 | DOHC-R6 (24V) | 2.0 l | E36, E36 (Z3), E39, E46 |
2.5 l | E36, E36 (Z3), E39, E46 |
2.8 l | E36, E36 (Z3), E38, E39 |
M54 | DOHC-R6 (24V) | 2.2 l | E36 (Z3), E39, E46 |
2.5 l | E36 (Z3), E39, E46 |
3.0 l | E36 (Z3), E39, E46, E53 |
M60 | DOHC-V8 (32V) | 3.0 l | E32, E34, E38 |
4.0 l | E31, E32, E34, E38 |
M62 | DOHC-V8 (32V) | 3.5 l | E38, E39 |
4.4 l | E31, E38, E39, E53 |
M70 | SOHC-V12 (24V) | 5.0 l | E31, E32 |
M73 | SOHC-V12 (24V) | 5.4 l | E31, E38 |
M102 | SOHC-R6 (12V) | 3.2 l | E23 |
3.4 l | E23 |
|
Diesel Engines |
Code | Type | Displacement | Chassis |
M21 | SOHC-R6 (12V) | 2.4 l | E28, E30, E34 |
M41 | SOHC-R4 (8V) | 1.7 l | E36 |
M47 | DOHC-R4 (16V) | 2.0 l | E39, E46 |
M51 | SOHC-R6 (12V) | 2.5 l | E34, E36, E38, E39 |
M57 | DOHC-R6 (24V) | 2.5 l | E39 |
2.9 l | E38, E39, E46, E53 |
|
Petrol Engines, BMW-Motorsport |
Code | Type | Displacement | Chassis |
M88 | DOHC-R6 (24V) | 3.5 l | E26 |
M88/3 | DOHC-R6 (24V) | 3.5 l | E23, E24 |
S14 | DOHC-R4 (16V) | 2.0 l | E30 |
2.3 l | E30 |
2.5 l | E30 |
S38 | DOHC-R6 (24V) | 3.5 l | E24, E28 |
3.6 l | E34 |
3.8 l | E34 |
S50 | DOHC-R6 (24V) | 3.0 l | E36 |
3.2 l | E36, E36 (Z3) |
S52 | DOHC-R6 (24V) | 3.2 l | E36, E36 (Z3) |
S54 | DOHC-R6 (24V) | 3.2 l | E36 (Z3), E46 |
S62 | DOHC-V8 (32V) | 5.0 l | E39, E52 |
S70 | SOHC-V12 (24V) | 5.6 l | E31 |
S70/2 | DOHC-V12 (48V) | 6.1 l | McLaren F1 |
Chassis-Code | Model | Production time* | Engines |
E12 | 5 series | 1972 - 1981 | M10B18, M10B20, M20B20, M20B25, M30B25, M30B28, M30B30, M30B32, M30B34 |
E21 | 3 series | 1975 - 1983 | M10B16, M10B18, M10B20, M20B20, M20B23 |
E23 | 7 series | 1977 - 1986 | M30B25, M30B28, M30B30, M30B32, M30B34, M102B32, M102B34, M88/3B35 |
E24 | 6 series | 1976 - 1989 | M30B28, M30B30, M30B32, M30B34, M88/3B35, S38B35 |
E26 | M1 | 1978 - 1981 | M88B35 |
E28 | 5 series | 1981 - 1987 | M10B18, M20B20, M20B27, M30B25, M30B28, M30B32, M30B34, M21D24, M88/3B35, S38B35 |
E30 | 3 series | 1982 - 1994 | M10B18, M20B20, M20B23, M20B25, M20B27, M30B32, M40B16, M40B18, M42B18, M21D24, S14B20, S14B23, S14B25 |
Z1 | Z1 | 1988 - 1991 | M20B25 |
E31 | 8 series | 1990 - 1999 | M60B40, M62B44, M70B50, M73B54, S70B56 |
E32 | 7 series | 1986 - 1994 | M30B30, M30B34, M60B30, M60B40, M70B50 |
E34 | 5 series | 1988 - 1997 | M20B20, M20B25, M30B30, M30B34, M40B18, M50B20, M50B25, M60B30, M60B40, M21D24, M51D25, S38B36, S38B38 |
E36 | 3 series | 1990 - 2000 | M40B16, M40B18, M42B18, M43B16, M43B19, M44B19, M50B20, M50B25, M52B20, M52B25, M52B28, M54B22, M54B25, M54B30, M41D17, M51D25, S50B30, S50B32, S52B32, S54B32 |
E36 | Z3 (same code as 3 series) | 1996 - | M40B18, M43B19, M52B20, M52B25, M52B28, M54B22, M54B25, M54B30, S50B32, S52B32, S54B32 |
E38 | 7 series | 1994 - 2001 | M52B28, M60B30, M60B40, M62B35, M62B44, M73B54, M51D25, M57D29 |
E39 | 5 series | 1995 - | M52B20, M52B25, M52B28, M54B22, M54B25, M54B30, M62B35, M62B44, M47D20, M51D25, M57D25, M57D29, S62B50 |
E46 | 3 series | 1998 - | M43B19, M52B20, M52B25, M54B22, M54B25, M54B30, M47D20, M57D29, S54B32 |
E52 | Z8 | 1999 - | S62B50 |
E53 | X5 | 1999 - | M54B30, M62B44, M57D29 |
E65 | 7 series | 2001 - | ? |
* Touring or Cabrio versions have been replaced later by new ones so there is an overlap
in production
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