Quote:
Originally Posted by barbel
Unless I've misunderstood, I don't think the 4x4 xDrive has diff-locking either.
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It's done with the firmware. The locking is made by ABS (or it is probably done by XDS; still I think hardware is the same as for ABS, the only difference is in software), which is specially controlled by firmware. The feature is called EDL, Electronic Differential Lock. Pity that they haven't implemented it in sDrive that would cost them nothing. "Thanks" to marketing.