Disco 2000 TD5, wont start! Can anyone shed any light on this issue! Remote fob no longer works, neither does central locking on key, electric windows dont work! it wont start and is showing M+S lights on dash! I have removed the bcu and it does exactly the same thing! So either BCU is...

Hello Everyone, Ive got a Discovery TD5 2000, and on the dash the M and S green lights are on sport and manual i belive, it wont start - wont even turn over or click, and the remote central locking is no longer working? Has anyone got any ideas? immobiliser issue i think??? Where is the...