Category: BMW

The M30B34 engines with a 10.0:1 compression ratio and 160 kW (218 horsepower) were sold in Europe and the majority of other markets. The M30B34 produced 136 kW (185 hp) and had an 8.0:1 compression ratio in North America and Japan. The Bosch Motronic digital fuel injection system was used in every market. The stroke […]

The M30B35LE is a SOHC, two-valve, lower efficiency variant of the M88/1 engine, commonly referred to as the M90. The cylinder head is taken from the BMW M30 engine family, but it shares the same block, bore, and stroke as the M88. This engine has used both Bosch Motronic and Bosch L-Jetronic engine management systems […]

The 1988 release of the BMW M40B16 engine, a low-volume in-line 4-cylinder engine of the BMW M40 series, was based on the M40B18. It had a smaller-stroke crankshaft and additional pistons, but the connecting rods stayed the same. The intake manifold, throttle valve, spark plugs, and ECU are different in M40 1.6 compared to 1.8. […]

Developed in 1987 to replace the obsolete M10 series, the M40B18 is the older brother of the M40B16 and the first inline 4-cylinder engine in the M40 family. The engine is built around a cast-iron cylinder block with an 8-valve head, a single camshaft, and hydraulic lifters (the M40 does not require valve adjustment). The […]

Produced between 1994 and 2000, the 1.7-liter BMW M41 or M41D17 diesel engine was found in all of its various bodies but only on the 3-Series E36. The popular 6-cylinder M51 diesel engine shares 86% of its parts with this power unit. The engine was installed on: BMW 3-Series E36 in 1994 – 2000; BMW […]

Developed from the M40B18, the M42B18 is an inline four-cylinder engine. The new, more effective aluminum 16-valve cylinder head with two camshafts and an optimized combustion chamber is the primary difference between it and its predecessor. The M42 still uses hydraulic valve clearance compensators. The intake and exhaust valves have diameters of 33 mm and […]

The M43B16 engine, a 1.6-liter BMW engine of the M43 family (which also included the M43B18 and M43B19) that took the place of the M40B16, was developed based on the 1.8-liter M43B18, which introduced a crankshaft with a reduced piston stroke to 72 mm (was 81 mm). The new power unit had a lighter crankshaft, […]

The M43B18 engine, which replaced the M40B18 in 1992, is an in-line 4-cylinder engine of the M43 family (which also included the M43B16 and M43B19). The M43 cylinder block was essentially carried over from the M40, the stroke stayed the same, and the crankshaft now has four counterweights instead of the eight on the M40. […]

With a displacement of 1.9 liters (1895 cc), the BMW M43B19 engine, also referred to as the M43TU, is the biggest in the lineup. The use of the exclusive BMW BMS 46 fuel injection system is one of these power units’ unique features. There are two variations, each with a distinct power level. M43TUB19 OL: […]

The 4-cylinder BMW M44B19 engine, which was manufactured from 1996 to 2001, took the place of the M42B18 engine. In comparison to the M42, the M44’s engine, control system, and outlet system have all undergone significant design modifications. This power unit has emerged as a leader in the BMW four-cylinder engine program. This engine’s cylinder […]