For most newer model cars you need the key to change the gear.
Owners manual sz 25 Gal
Check out this post: http://www.mavromatic.com/2007/03/diy-part-i-replacing-rear-rotors-and-brake-pads-on-a-land-rover-discovery-ii/
Did you get a resolution to this, I have the same issue in my 04 Discovery
on my 03 discovery there is a sticker under the hood on top of the grille
Rescued by Rover was created on 1905-07-03.
Rover's Morning Glory was created on 2003-03-24.
It is a pinion gear.
Rightline Gear was created on 1997-03-01.
George Gear was born on 1947-03-08.
No at all
Top Gear of the Pops was created on 2007-03-16.
Metal Gear Solid was created on 1998-09-03.