On Mon, 09 Feb 2009 17:11:07 -0600, Jules wrote:

It might be worth checking that the alternator has a good ground
connection - if that's bad due to dirt / corrosion / something working
loose then it could really mess your charging system up.

The vehicle is still under warranty, take it back and get it fixed.

As the voltage is so high what stress is it putting on the expensive
computers than control almost everything in a D3? Getting the problem
sorted by the dealer gets it on to the vehicles records which you then
might be able to thump Land Rover with at a later date when other things
die early.

--
Cheers
Dave.