The BMW 5-Series will be available starting this summer with a new generation of four-cylinder diesel engines with BMW TwinPower Turbo technology. Available both on sedan and touring models, the new 2.0-liter powerplants are based on BMW Group’s new modular engine system and are offered with two power levels – 148hp (150PS) in the 518d and 188hp (190PS) in the 520d. In both cases, the power gain is 7hp over previous engines.
The new diesel engines feature an aluminium crankcase with thermally joined liners for optimization of internal friction coefficients, integrated balance shafts, a map-controlled oil pump, a highly efficient turbocharging system with variable intake geometry and Common Rail direct injection with solenoid injectors, with an increased maximum pressure to 2,000 bar.
With the new 148hp engine, the 518d Sedan sprints from 0 to 100 km/h in 9.5 seconds, while the 518d Touring does it in 9.1 seconds. Average fuel consumption according to the EU test cycle is 4.3 to 4.7 litres/100 kilometers (54.7-50 mpg US) for the sedan and 4.6-5.0 l/100 km (51.1-47 mpg US) for the wagon.
The more powerful 188 hp engine is also offered with the xDrive all-wheel-drive system, both on the sedan and the touring model. Compared with the outgoing engine, maximum torque has been increased by 20 Nm to 400 Nm (295 lb-ft). The BMW 520d Sedan sprints from 0 to 100 km/h in 7.9 seconds, while the BMW 520d Touring needs 0.2 seconds more. Four-wheel drive models cover the sprint in 7.9 seconds (Sedan) and 8.2 seconds (Touring).
Average fuel economy is rated at 4.3-4.7 l/100 km (54.7-50 mpg US) for the 520d Sedan, 4.6-5.0 l/100 km (51.1-47 mpg US) for the 520d Touring, 4.7-5.1 l/100 km (50-46.1 mpg US) for the 520d xDrive Sedan and 5.1-5.4 l/100 km (46.1-43.5 mpg US) for the 520d xDrive Touring. All fuel economy figures correspond to the standard versions fitted with the 6-speed manual gearbox.
