The BMW X5 xDrive40d and the new BMW X6 xDrive40d have got a new inline-six diesel engine and mild-hybrid technology.
BMW introduces a new drive option for the X5 and X6 crossovers. An innovative 250kW (340hp) diesel engine with a peak torque of 700 Nm (516 lb-ft) is combined with a 48-volt generator adding 8 kW (11 hp).
The BMW X5 xDrive40d and BMW X6 xDrive40d versions will go on sale from May 2020. The manufacturer claims the average fuel consumption of the first is 6.4 – 5.9 l/100 km (37-40 mpg), of the second – 6.2 – 5.8 l/100 km (38-41 mpg). CO2 emissions do not exceed 167 g/km.
The 6-cylinder diesel inline engine with a two-stage turbocharger and optimized direct fuel injection gives a peak torque of 700 Nm (516 lb-ft) at 1750 -2250 rpm. The engine reaches its top power at 4400 rpm. It is mated with an 8-speed Steptronic transmission.
The X5 xDrive40d and the X6 xDrive40d comply with the Euro 6d standard becoming valid at the beginning of 2021.
The new diesel engine is assisted by the 48-volt starter-generator of the mild-hybrid system. Additional electric 11 hp not only improve the dynamics, but also increase the fuel efficiency of the drive system. BMW assures the new versions accelerate to 62 mph (100 km/h) in 5.5 seconds.