BMW ENGINE CODES

BMW Straight 4 Cylinder Petrol Engines

1960-1987 — 1.5–2.0 L M10 / M12 engines
1986-1991 — 2.0–2.5 L S14 for M3 (DOHC) engines
1987-1995 — 1.6 / 1.8 L M40 (SOHC) engines
1989-1996 — 1.8 L M42 (DOHC) engines
1991-2002 — 1.6 / 1.8 / 1.9 L M43 (SOHC) engines
1996 -2001 — 1.9 L M44 (DOHC) engines
2001- 2003 — 1.8 / 2.0 L N42 engines
2004 - 1.8 / 2.0 L N46 engines
2004 - 1.6 L N45 engines
2006 - 2.0 L N45 engines
2006- N14 1.6 L Prince (JV withPSA), 90 kW (122 PS), 160 Nm (118 ft·lb) engines
2006- N43 2.0 L petrol and diesel engines
2007- N43 2.0 L petrol and diesel engines
2011- N20 2.0 L single turbocharger petrol engine withTwin Power turbo, Valvetronic, and High Precision engines
2011- N13 1.6 L single turbocharger petrol engine withTwin Power Turbo, Valvetronic, and High Precision Injection engines

1933 - 1.2 L M78 engines
1937 - 2.0 L M328 engines
1937 - 3.5 L M335 engines
1952 - 2.0 - 2.1 L M337 engines
1968 - 2.5 - 3.5 L M30 SOHC Double Carburettor engines
1977 - 2.0 - 2.7 L M20 SOHC 12 valve (The original 2.0 and 2.3L versions were designated M60, but all displacements later carried the M20 name. M60 is currently used to describe 1st generation 3.0 and 4.0 litre V8 engines.)
1978 - 3.5 L M88 / S38 for M1 / M5 / M6 engines
1980 - 3.2 L M102 for 7-Series engines
1983 - 3.4 L M106 for 7-Series engines
1989 - 2.0 - 3.0 L M50 DOHC 24 valve (with VANOS on M50TU ) engines
1994 - 2.0 - 2.8 L M52 DOHC 24 valve with VANOS (Double-VANOS on M52TU) engines
1995 - 3.0 L S50 for BMW M3 engines
1996 - 3.2 L S52 for M3 engines
2000 - 2.2 - 3.0 L M54 aluminium DOHC 24 valve with Double-VANOS engines
2002 - 3.2 L S54 cast iron DOHC 24 valve engines
2005 - 2.5 - 3.0 L N52 magnesium / aluminium DOHC 24 valve with Double-VANOS and Valvetronic engines
2006 - 3.0 L N54 aluminium DOHC 24 valve twin turbocharged engines
2007 - 2.5 - 3.0 L N53 magnesium / aluminium DOHC 24 valve with Double -VANOS and High Precision Injection (Gasoline Direct Injection) engines.
2009 - 3.0 L N55 single turbocharger, features these technologies (Twin Power Turbo, Valvetronic, and High Precision Injection) engines.

1992 - 3.0- 4.0 L M60 engines
1996 - 3.5 - 4.4 L M62 engines
1998 - 4.9 - 5.0 L S62 for E39 / 52 M5 and Z8 engines
2000 - 4.4 M62 for E53 (M62TUB44) 286 bhp / 213 kw engine output
2001- 4.4 M62 for E53 (M62B44) 320 bhp / 238 kw " "
2001 - 4.6is M62 for E53 (M62B46) 341bhp / 254 kw " "
2004 4.8is N62 for E53 (N62B48) 360 bhp / 268 kw " "
2001 - 3.6 - 4.8 L N62 with SFI fuel injection, Double -VANOS and Valvetronic engines
2005 - 4.0 L P60B40 engine
2008 - 4.0 L S65 for E90 / 92 / 93 M3 engines
2008 - 4.4 L BMW N63 twin turbocharged engines
2009 - 4.4 L BMW S63 twin turbocharged with TwinPower Turbo and Cylinder bank Comprehensive Manifold engines

1986 - 5.0 - 5.4 L M70 engines
1992 - 5.6 L S70 engines
1993 - 5.4 L M73 engines
1994 - 6.1 L S70 / 2 engines
2003 - 6.0 L N73 engines
2009 - 6.0 L N74 twin turbocharged, features these technologies (Twin Power turbo, Valvetronic, DoubleVANOS and High Precision Injection) engines.

BMW nomenclature abbreviations

A = automatic transmission
C = coupe, last used on the BMW E46 and the BMW E63 (dropped after 2005 model year)
c = cabriolet
d = diesel ^†
e = eta (efficient economy, from theGreek letter ‘n’)
g = compressed natural gas
h = hydrogen
i = fuel-injected
L = long wheel base
s = sport, also means "2 dr" on E36 model^††
sDrive = rear wheel drive
T = touring (wagon / estste)
Ti = hatchback for the BMW 3 Series hatchback