It is the successor to the BMW N45 engine and, as per the N45, does not have Valvetronic.
(meta data) TITLE: BMW N43B16 Engine | Problems, tuning, specs, oil # BMW N43B16 Engine Overview, problems Performance tuning ## N43B16 Specs BMW Plant Hams Hall Also called BMW N43 2007-2011 Cylinder block alloy 4 valves per cylinder Piston stroke, mm (inch) 75.7 (2.98) Cylinder bore, mm (inch) 82 (3.23) Compression ratio 1599 cc (97.6 cu in) Power output 90 kW (122 HP) at 6,000 rpm Torque output 160 Nm (118 lb·ft) at 4,250 rpm 7,300 rpm HP per liter Fuel type Fuel system Siemens MSD 81.2 Weight, kg (lbs) Fuel consumption, L/100 km (mpg) -City -Highway -Combined for E87 116i 7.5 (31.4) 4.8 (49) 5.8 (40.6) Naturally aspirated Oil consumption , L/1000 km (qt. per miles) up to 0.7 (1 qt. per 850 miles) Recommended engine oil 5W-30 5W-40 Engine oil capacity, L (qt.) 4.25 (4.5) Oil change interval, km (miles) 7,000-10,000 (4,500-6,000) Normal engine operating temperature, °C (F) Engine lifespan, km (miles) -Official information -Real – 250+ (155) Tuning, HP -Max HP -No life span loss 130+ – The engine is installed in BMW 116i E87BMW 316i E90 ## BMW N43B16 engine reliability, problems and repair BMW N43B16 engines were produced to replace N42B18. However they showed up a bit late and were constructed on base of N43B20. This motor had cylinders with smaller diameter which was 82 mm in comparison with 2-liter N43B16 engine. It has shorter crankshaft which is 75.7 mm stroke. Displacement was decreased to 1.6 liters. If compared with its predecessor N42B18 new engine has pistons with higher compression ratio (12). At the same time direct injection system was installed while Valvetronic was removed. Siemens MSD 81.2 engine control unit is used in new motor. This engine was produced for BMW 16i models. N45B16 and N46B18 versions were also produced along with new engine for cheaper BMW modifications.1.6 liter turbocharged 4-cylinder N13B16 engine turned out to be a new gen motor which replaced N43 in 2011. ### BMW N43B16 disadvantages and problems This engine is nothing but a smaller version of N43B20. It means that it has actually the same problems. HERE you can find out detailed information on possible BMW N43 malfunctions. ## BMW N43B16 engine tuning ### N43B16 Chiptuning You will hardly find any performance parts and details to complete your upgrading ideas. This is due to the fact that N43 is designed for a city driving but not for racing. If you want to get additional 10-15 HP, you need to buy cold air intake, performance exhaust and complete engine management tuningHowever the best solution is to buy more powerful BMW model. <<<<< (3 votes, average: 4.00 out of 5) Loading... LatestMost popular Honda K20A K20C Honda K24A K24Z Honda R18A Honda R20A Honda L15A L15B Honda L13A L13B Honda D16A D16Y D16Z Honda D15B D15A Honda D17A Honda B18C B18B Honda B16A B16B Honda B20B B20Z Toyota 7A Toyota 3VZ Honda K24A K24Z Toyota 3ZR Honda F20B F20A BMW S50B32
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BMW N43
Versions.:N43B16.
The N43B16 has a displacement of 1,599 cc (97.6 cu in) and produces 90 kW (121 bhp) and 160 N⋅m (118 lb⋅ft).