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N43 engine New pistons were installed to increase compression ratio up to 12. So, all the BMW N43 engine problems are below:. Understanding these common problems can save owners from unexpected repairs and ensure a smoother driving experience. The BMW N43 is a naturally aspirated four-cylinder petrol engine which was sold from 2006 to 2013. N43B20 is a new 2-liter version of N42B20 which was produced with several modifications. The engine was manufactured from 2007 to 2011 on the BMW Plant Hams Hall (Coleshill, Birmingham, United Kingdom). Variable valve lift system Valvetronic was finally removed. Jun 7, 2025 · The BMW N43B20 is a 2. Stretched timing chains, coil pack failures, Vanos unit issues etc. 7 cu·in) straight-four, four-stroke cycle natural aspirated gasoline engine from the BMW N43-family. The problem would worsen with issues like difficulty in starting the car, low gas mileage, and sometimes, the dreaded timing chain breakages. Below, we delve into the detailed specifications that define this inline-four powerplant, highlighting its capabilities and features. Below are some of the most frequently reported issues associated with the N43 engine. Jan 10, 2025 · The N43 engine is a sophisticated piece of engineering that combines modern technology with BMW’s performance heritage. Mar 25, 2025 · The BMW N43 engine, while generally reliable, is not without its issues. Engine had Siemens MSD 81. Apr 11, 2015 · BMW N43B20 engine reliability, problems and repair. I had a slightly scary moment a while ago when an indy BMW garage said that the engine noise indicates that the timing chain has gone bad and needs to be changed. 0 liters (1,995 cc, 121. Sep 15, 2017 · I've read about all kinds of trouble with this engine in the 1- and 3-series cars which has made me somewhat worried. It replaced both the BMW N46 and BMW N45 engines. N43 was equipped with direct injection system. [1] However the N43 was not sold in countries with high sulfur fuel, [2] therefore the N45/N46 engines remained in production alongside the N43. 2 Jul 17, 2021 · BMW’s N43 was an unreliable engine that exhibited many problems, like worn coil packs, oil pumps, injectors, etc. ixoxr aipwd xxvedv apb wia wiua wbtbf vnzgqi tocuvxbb ascgwmm |
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