Error code 4F83. A quick Google search says it's something to do with one of the clutches in the gearbox.

Dealer says the new gear box will cost equivalent to USD$7500, including labor. Interestingly, labor cost is only about USD$400. Fitting the big package under the vehicle doesn't seem to take so long.

I'm speechless. It's almost one third of the remaning cost of the vehicle.

The SA told me it's possible to drive the car without fixing it, but no telling when/if the message will ever appear again and may become immobile.

I'm thinking to call up the BMW headquarters, explain the situation and ask for some discount.