OK,

I can only guess that this limited slip differential has hydraulic lines going to it to lock it up. I've completely disassembled my wife's old 4matic, and when I got to the differential, I saw this hydraulic line going to it.

What is it for? Does it detect slippage and engage the front wheels, or does it add pressure to the clutch plates and further engage the limited slip of the wheels?

__________________
Closing the store
Benzbonz.biz on your smart phone or tablet.