Hi Mate, firstly your Freelander being a 2003 Td4 is a Freelander 1 not 2,,
I think your referring to the face lifted version,
Freelander 2 didn't start till 2006 ish..
There will be some clever people along soon to help out but the 3 amigos is normally the
brake switch or the ABS module if I remember right..I changed my switch out for the newer
design and I have had no further issues,
not sure on the stop start issue it may be something completely unrelated to the amigos..