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The BMW N42 is a DOHC four-cylinder petrol engine which replaced the BMW M43 and was produced from 2001-2004. [1] [2] The N42 serves as the basis for the smaller N40 engine (which does not have Valvetronic). The N42B18 won the 1.4-1.8 L category of the International Engine of the Year awards for 2001. [3]
In tune with BMW's core values regarding handling dynamics, [33] the E46 was initially available with a rear-wheel drive layout and a 50/50 weight distribution. [ 28 ] [ 34 ] All-wheel drive , which was last available in the 3 Series in 1991, [ 35 ] was reintroduced for the E46 on the 325xi, 330xi and 330xd models.
The BMW M54 is a naturally aspirated straight-6 DOHC petrol engine produced from 2000 to 2006. It was released in the E53 X5 [1] and is the replacement for the M52 engine. The S54 is the equivalent high performance engine, used in the E46 M3, the Z3 M Coupé/Roadster and the E85/E86 Z4 M.
The BMW N52 is a naturally aspirated straight-6 petrol engine which was produced from 2004 to 2015. The N52 replaced the BMW M54 and debuted on the E90 3 Series and E63 6 Series . The N52 was the first water-cooled engine to use magnesium/aluminium composite construction in the engine block. [ 1 ]
The M3 is the most performance oriented version of the 3 Series. It is designed and developed by BMW's in-house motorsport division, BMW M. M3 models have been derived from the E30, E36, E46, E90/E92/E93, and F30 (designated F80) 3 series and have been marketed with coupé, sedan and convertible body styles. Upgrades over the "standard" 3 ...
The BMW M52 is a straight-6 DOHC petrol engine which was produced from 1994 to 2000. It was released in the E36 320i, [ 1 ] to replace the M50 . The BMW S52 engine is a high performance variant of the M52 which powered the American and Canadian market E36 M3 from 1996 to 1999.
The common-rail-system is made by Bosch and also controlled by a Bosch DDE 4 ECU for non TÜ and DDE 5 ECU for TÜ. [3] All models are equipped with turbocharger and an intercooler. The 2.9L M57, which is found in E39 530d and E38 730d, as well as early models of E46 330d and E53 X5, is equipped with one Garrett GT2556V turbocharger.
Owners report shift issues when oil begins breaking down beyond 50K miles, hence shifting issues are common. [ citation needed ] There are also problems with the valve block and solenoids [ citation needed ] When this failure starts to occur, shift quality and speed, torque transfer and even loss of ability to engage gears can occur.