The new xDrive40d model will be the marque’s first with 'mild hybrid' technology.

CarAdvice, By Caradvice

© Image Credit by CarAdvice | BMW X5 and X6 xDrive40d mild hybrids revealed

The BMW X5 and X6 are set to receive an xDrive40d variant complete with the brand's first mild-hybrid diesel powertrain, but BMW Australia isn't planning on bringing them Down Under.
Due in May 2020, the new models will feature a revised 3.0-liter straight six-cylinder diesel mated to a 48V generator and mild-hybrid system.
Fuel consumption figures are claimed at 5.9-6.4L/100km for the X5 xDrive40d and 5.8-6.2L/100km for the BMW X6 xDrive40d. This is an improvement on the 2019 X5 xDrive30d’s 7.2L/100km claimed to figure.

The output from the diesel unit has been boosted to 250kW with tweaks to the variable-geometry turbocharger and common-rail direct injection. The mild-hybrid system will raise power by another 8kW and increase maximum torque to 700Nm between 1750 and 2250rpm.
By comparison, the 2020 X6 xDrive30d we receive in Australia is listed at 195kW, with 620Nm available between 2000 and 2500rpm.
BMW claims the mild-hybrid system will improve engine response and consumption by allowing the combustion engine to maintain a speed “within an efficiency-optimized load range.”
This optimization results in a claimed 0-100km/h sprint in 5.5-seconds – an entire second less than the 2020 X6 xDrive30d’s 6.5-second claim.
Power will be sent through an eight-speed automatic transmission and xDrive all-wheel-drive system.
This article was originally published by CarAdvice.
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