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The M41 engine was the first four-cylinder diesel engine from BMW. The engine was derived from the six-cylinder BMW M51 engine and shared 86% of its components. This engine became available in several models of the E36: 4-door sedan; 5-door touring; 3-door compact; Fuel consumption is around 6.5 L/100 km (43 mpg ‑imp; 36 mpg ‑US) in ...
BMW is well known for its history of inline-six (straight-six) engines, a layout it continues to use to this day despite most other manufacturers switching to a V6 layout. . The more common inline-four and V8 layouts are also produced by BMW, and at times the company has produced inline-three, V10 and V12 engines, BMW also engineered non-production customised engines especially for motorsports ...
In the 1970s BMW decided to develop an engine, which would both be powerful and have a good fuel economy. This was caused by the oil crisis in 1973 . In 1975 a group of BMW engineers started working on the M78/M105 diesel engine project, using the M20 petrol engine as the basis.
[1] [2] [3] The displacement is 2.5 L; 152.4 cu in (2,497 cc) and the compression ratio is 22.0:1. Some engine variants have an intercooler in addition to the turbocharger, they can be identified by the tds. [2] The M51 is an engine made of cast iron, it has one chain driven overhead camshaft [4] and two valves per cylinder.
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The BMW B37 is a 1.5-litre (1,496 cc), diesel, straight-three engine with a single, mono-scroll and variable-geometry turbocharger. The compression ratio is 16.5:1. It is the second engine from BMW's modular engine plan, sharing most of its components with the BMW B38 petrol engine. Power output is either 70 or 85 kW (94 or 114 hp).
The BMW N57 is a family of aluminium, turbocharged straight-6 common rail diesel engines. The engines utilize variable geometry turbochargers and Bosch piezo-electric injectors. [1] The engine jointly replaced the M57 straight-6 and M67 V8 engines. In 2015 the N57 started to be replaced with the B57 engine, beginning with the G11 730d.
Followed by an "i" for petrol engines or a "d" for diesel engines; Examples of this naming convention are "X5 3.0d" and "Z3 1.8i". [6] Sometimes an "s" was added after the engine size for higher performance models (for example, "Z4 3.0si" and "X5 4.8is"). Since 2009, a revised model naming system has been used. [7] The model names are as follows: