Technical Reference Guide BMW 3 Series Platform & Engine Code Matrix A comprehensive breakdown mapping every chassis generation to factory engine codes, body designations, and powerplants from 1975 to Present. E21 E30 E36 E46 E90 F30 G20 M Power (S-Series)

Generation	Chassis Code	Body Style / Model	Engine Code	Configuration	Displacement
E21 (1975–1983)	E21	2-Door Saloon / Baur Cabrio	M10B16	Inline-4 SOHC Petrol	1.6L
			M10B18	Inline-4 SOHC Petrol	1.8L
			M10B20	Inline-4 SOHC Petrol	2.0L
			M20B20	Inline-6 SOHC Petrol	2.0L
			M20B23	Inline-6 SOHC Petrol	2.3L
E30 (1982–1994)	E30	2-Door / 4-Door Saloon Touring (Estate) Convertible / Baur	M10B18	Inline-4 SOHC Petrol	1.8L
			M40B16	Inline-4 SOHC Petrol	1.6L
			M40B18	Inline-4 SOHC Petrol	1.8L
			M42B18	Inline-4 DOHC Petrol	1.8L
			M20B20	Inline-6 SOHC Petrol	2.0L
			M20B23	Inline-6 SOHC Petrol	2.3L
			M20B25	Inline-6 SOHC Petrol	2.5L
			M20B27	Inline-6 SOHC Petrol (325e)	2.7L
			M21D24 / TD24	Inline-6 SOHC Diesel / Turbo	2.4L
	E30/2S	M3 Coupe / Convertible	S14B20	Inline-4 DOHC Petrol (320is)	2.0L
			S14B23	Inline-4 DOHC Petrol (M3)	2.3L
			S14B25	Inline-4 DOHC Petrol (Sport Evo)	2.5L
E36 (1990–2000)	E36/2 E36/3 E36/4 E36/5 E36/C E36/7/8	Saloon, Coupe, Touring, Convertible, Compact, Z3 Roadster/Coupe	M40B16 / B18	Inline-4 SOHC Petrol	1.6L / 1.8L
			M43B16 / B18 / B19	Inline-4 SOHC Petrol	1.6L - 1.9L
			M42B18 / M44B19	Inline-4 DOHC Petrol	1.8L / 1.9L
			M50B20 / B25 (TU)	Inline-6 DOHC Petrol	2.0L / 2.5L
			M52B20 / B25 / B28 (TU)	Inline-6 DOHC Petrol	2.0L - 2.8L
			M41D17	Inline-4 SOHC Turbo-Diesel	1.7L
			M51D25 / TD25	Inline-6 SOHC Turbo-Diesel	2.5L
			S50B30 / S50B32	Inline-6 DOHC Petrol (M3 EU)	3.0L / 3.2L
			S50B30US / S52B32	Inline-6 DOHC Petrol (M3 US)	3.0L / 3.2L
	E46 (1998–2006)	E46/2 E46/3 E46/4 E46/5 E46/C	Saloon, Coupe, Touring, Convertible, Compact	M43B19	Inline-4 SOHC Petrol	1.9L
				N40 / N42 / N45 / N46	Inline-4 DOHC Petrol	1.6L - 2.0L
				M52TU20 / B25 / B28	Inline-6 DOHC Petrol	2.0L - 2.8L
				M54B22 / B25 / B30	Inline-6 DOHC Petrol	2.2L - 3.0L
M47D20 / TUD20				Inline-4 DOHC Turbo-Diesel	2.0L
M57D30 / TUD30				Inline-6 DOHC Turbo-Diesel	3.0L
E46/2S E46/CS				M3 Coupe / Convertible / CSL / GTR	S54B32	Inline-6 DOHC Petrol (M3)	3.2L
					S54B32HP	Inline-6 DOHC Petrol (M3 CSL)	3.2L
					P60B40	V8 DOHC Petrol (M3 GTR)	4.0L
E90 Series (2005–2013)		E90 E91 E92 E93	Saloon, Touring, Coupe, Convertible	N43 / N45 / N46	Inline-4 DOHC Petrol	1.6L - 2.0L
				N52B25 / B30	Inline-6 DOHC NA Petrol	2.5L / 3.0L
				N53B25 / B30	Inline-6 DOHC Direct-Inj Petrol	2.5L / 3.0L
	N54B30			Inline-6 Twin-Turbo Petrol	3.0L
	N55B30M0			Inline-6 Single-Turbo Petrol	3.0L
	N47D20			Inline-4 Turbo-Diesel	2.0L
	M57D30TÜ2 / N57D30			Inline-6 Turbo / Twin-Turbo Diesel	3.0L
	E90/E92/E93 M3			M3 Saloon / Coupe / Convertible	S65B40	V8 NA DOHC Petrol (M3)	4.0L
		S65B44	V8 NA DOHC Petrol (M3 GTS)		4.4L
	F30 Series (2011–2019)	F30 F31 F34 F35	Saloon, Touring, Gran Turismo, Long-WB	N13B16 / B38B15	Inline-3 / Inline-4 Turbo Petrol	1.5L / 1.6L
N20B20 / N26B20 / B48B20				Inline-4 Turbo Petrol	2.0L
N55B30M0 / B58B30M0				Inline-6 Turbo Petrol (335i / 340i)	3.0L
N47D20 / B47D20				Inline-4 Turbo-Diesel	2.0L
N57D30O1 / T1				Inline-6 Turbo / Twin-Turbo Diesel	3.0L
N20 / B48 + Electric				Inline-4 PHEV (330e)	2.0L
F80				M3 Saloon / CS	S55B30T0	Inline-6 Twin-Turbo Petrol	3.0L
G20 Series (2018–Present)		G20 G21 G28	Saloon, Touring, Long-WB	B38B15 / B48B20	Inline-3 / Inline-4 Turbo Petrol	1.5L / 2.0L
				B58B30O1	Inline-6 Turbo Petrol (M340i)	3.0L
	B47D20 / B57D30			Inline-4 / Inline-6 Turbo-Diesel	2.0L / 3.0L
	B48B20 + Electric			Inline-4 PHEV (320e / 330e)	2.0L
	HA0001N0			Synchronous Electric Motor (i3)	EV
	G80 G81			M3 Saloon / Touring / CS	S58B30T0	Inline-6 Twin-Turbo Petrol	3.0L