Quote:
Originally Posted by bmnut
Thanks Pete for all your continuing research, it’s much appreciated.
I’m assuming that this latest version of xDrive has greater longevity being a more sophisticated design with improved heat management as well?
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Without part numbers it is difficult to where where all the changes apply.
What is certain, it has a version of the ATC13-1 VTG (transfer box), which includes; Reduction in the thermal load by over-opening of the all-wheel drive multidisc clutches. Reduced fuel consumption by intelligent all-wheel drive control and demand-based oil level control in the transfer box (Efficiency Mode).
Whether the very latest improvements as in the M3/4 VTG, will filter down into all the xDrive VTG units, only time and more information will give the full picture.