Category: BMW

Since 2013, vehicles with front-wheel drive (B38A15), rear-wheel drive (B38B15), and hybrid vehicles (B38K15) have been equipped with the 1.5-liter BMW B38 3-cylinder engine series. Additionally, the 1.2-liter B38A12A and 1.5-liter B38A15A units are installed on the Mini. Conventional modifications quickly followed the introduction of B38 gasoline engines as part of the i8 coupe hybrid […]

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 […]

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 […]

In-line 4-cylinder BMW N42B18 engines have a DOHC gas distribution system. The M43 series engines served as the model’s predecessor. The two overhead camshafts and the cutting-edge VANOS system are the N42B18’s primary features. Both fuel consumption and outlet gas pollution could be decreased thanks to this technology. Additionally, by optimizing the cylinder filling with […]

In 2001, the outdated M43B18, M43B19, and M44B19 engines were replaced by the 4-cylinder N42B20 engine. The new engine used a light aluminum cylinder block with cast iron liners in place of a heavy cast-iron one. New pistons, connecting rods, and a 90 mm long-stroke crankshaft are all used in the N42B20 engine. The balance […]