I have a 2004 Murcielago and I was driving the other day and the car just went into neutral and would not go into gear, after pulling over on the side of the road, playing around with the E-gear, the car would not go into gear. soon as I give it gas and shift into first, the car just stalls out. The light on the dash board doesnt indicate that it goes into any gear it just stays in Neutral when i know the car goes in gear. Soon as I give it gas and shift, it stalls. Had to get towed by a flatbed to my own shop and put it on the lift. The 4wd light went ont and I know that means the Different was getting to hot but what can it be?

you have too check for fault codes.
you should have fault codes in the e-gear system.it could be the e-gear pump.can you hear the pump buzzing?
There is also a change off the shift switches on the gearbox malfunctions.if this is the case the engine needs too come out.worst case senario.

good luck