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N47 vs B47: Differences, Reliability & Which to Buy

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Image: BMW B47D20B Complete Engine for £4,999.99 at mtautoparts.com If you are looking at a used BMW 118d, 320d or 520d, the badge on the boot will not tell you which engine is under the bonnet. Between 2014 and 2015, BMW replaced the 2.0-litre N47 diesel with the B47 across most of its range, often midway through a model's life. Two cars with identical badges and similar registration dates can have different engines, and the difference matters. The N47 is the engine with the timing chain reputation. The B47 is its successor, and in most respects a better engine. This guide covers what changed, where each engine still has weaknesses, and what to look for before you buy. N47 vs B47 at a Glance   N47 (2.0 litre) B47 (2.0 litre) Production 2007 to 2014/15 2014 onwards Layout 1,995 cc four-cylinder turbodiesel 1,995 cc four-cylinder turbodiesel Timing chain Rear of engine, gearbox side Rear of engine, gearbox side Known weak point Timing chain wear on early engines EGR and DPF on shor...
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BMW B37 Engine Problems: Common 1.5 Diesel Faults Explained

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  Photo by Konrad Bednarek on Unsplash The BMW B37 engine is a 1,496 cc three-cylinder turbocharged diesel introduced in 2014 as part of BMW's modular engine family. The B37 was replaced by the four-cylinder N47 in the entry-level positions of several F-generation BMW models. The N47 offered lower fuel consumption and reduced emissions in a compact package. With only minor calibration differences, it was also used in MINI Cooper D models from the F56 and F55 generations onwards. In the UK, the B37 is most commonly found in the 116d (F20/F21), 216d Active Tourer (F45) and Gran Tourer (F46), and X1 sDrive16d (F48). Depending on the variant, it produces between 94 and 114 HP, with torque figures varying by model and specification. The B37C15U0 delivers around 114 HP, while the lower-output B37C15K0 produces approximately 94 HP in models carrying the 114d and 214d badges. This article covers the faults that appear most often on B37-powered cars: what causes them, what to look and list...
Location: United Kingdom
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BMW N57 Engine Problems: Common Faults, Symptoms & Fixes

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Image: BMW N57D30B Complete Engine for Sale at MT Auto Parts, priced at £4,899.99 The BMW N57 is a 3.0-litre straight-six diesel engine that has powered a wide range of BMW models since 2008. In the F generation line-up, it appears in the 30d and 35d badged variants across the 3, 5, 7 Series, and X3-X7 models. It replaced the well-regarded M57 engine and, on the whole, earned a better reputation than BMW's troublesome N47 four-cylinder diesel, but it has its own set of known weaknesses. This article covers the most common N57 problems, what to look for, and what each fault typically involves to fix. N57 Engine Variants: What's in Your BMW The N57 comes in several main versions, ranging from single-turbo engines to more complex twin- and triple-turbo configurations. Understanding which one you have matters when sourcing replacement parts, as the turbocharger setup and engine specification can affect repair costs. N57D30A – Single-turbo unit producing around 245 PS (241 bhp). Fo...
Location: United Kingdom
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