BMW has updated the engine and gearbox of its entry level, diesel powered 5er, the 520d luxury saloon. The 520d’s new, 2 liter TwinPower turbo diesel engine sees a bump up in power and torque, even as fuel consumption, NVH and tail pipe emissions are cut down. The engine, in its latest iteration, produces 190 Bhp of peak power and 400 Nm of peak torque, which represents a 6 Bhp-20 Nm increase. The increase in power and torque sees the 2015 BMW 520d accelerate to 100 Kph from standstill in 7.7 seconds, a 0.2 second improvement. The 8 speed automatic gearbox of the car has also been revised with taller ratios for better fuel efficiency.
The 2015 BMW 5-Series 520d luxury saloon’s 2 liter turbo diesel engine sees a slew of changes. The engine features an aluminium crankcase with thermally joined cylinder liners and integrated balancer shafts. The common rail injection system gets new solenoid valve injectors, with injector pressures going up to 2,000 BAR. Map-controlled oil pumps, vacuum-operated bypass valve, new roller bearings in the turbocharger and redesigned heat exchangers are the other new bits on the turbo diesel engine, which is 2 kilograms lighter than the outgoing motor. BMW also claims to have worked on reducing noise, vibration and harshness levels of the new engine, making it a more refined operator.
The 8 speed ZF sourced automatic steptronic gearbox gets longer gear ratios and geography sensing predictive shifting technology, which relies on the car’s navigation data to upshift and downshift gears according to the topography ahead. BMW claims that the fuel efficiency of the 520d has increased with the car cutting fuel usage by 0.4 liter per 100 kilometers. The BMW 520d is one of the best selling 5-Series variants for the car in India. The 520d is assembled at BMW India’s Chennai factory through the CKD kit route. The updated engine is likely to make it to the India-spec BMW 5-Series 520d shortly. Prices of the BMW 5-Series 520d start at 49.9 lakh rupees, ex-showroom Delhi.