Originally Posted by 
Loubrey
				 
			While the majority of comment regarding "running in" relates to the engine, I always been advised that especially with Defenders "mechanical sympathy" goes a long way in ensuring your car's longevity.
This goes with getting used to your car's drivetrain slack (which differs from vehicle to vehicle), clutch take up etc.
I agree with Rick that gentle revving up and down the gear range to be the best way to "bed" all the mechanical components into a single homogenous unit.
I drove my 2010 90 like that from day one and a month before warranty runs out (20 April 2013) I've had 2 very minor electrical issues that got sorted without any pain (I had two mud flaps changed, but this is a separate issue!). My car spent 18 months in the heat of the Pilbara and does more rock crawling than most and my diffs, transfer case, gearbox etc are all in perfect working condition as when I received the car.
Enjoy your Defender use it as it was intended!
Cheers,
Lou