My Mk6 2.4dci Transit BUccaneer Caravel let me down today.Took it for M.O.T and it broke down 5 times.Cuts out and coasts to a halt with no lights on dash.Turn the starter and it starts and a few miles down the road same thing.Passed M.O.T! and got it home.7 years I have had the vehicle it's been 100 per cent reliable!M.O.T tester suggested it could be a battery problem but which one?There are two under the seat and I am not sure why.The workshop manual just say's some vehicles fitted with two battery's.Wiring diagram suggests that they are wired in parallel.Anyone got any idea's ?