Hello guys I need your help again..

Ive got a RR '04 4.4 V8 Autobiography.

Yesterday my upper water hose blew. I stopped immediately the engine. After half an hour I refilled the coolant system then started the engine and everything was working normally. Until this morning.

This morning I started the engine it was running smooth as usual. Then just before I jumped in to go out of the garage the engine idle suddenly started to be very lumpy so I stopped the engine.

I tried to restart the engine and it does not start again.

Computer says Engine Failsafe, Trans. Failsafe, HDC Off...

I connected my OBD diag to read the fault codes and the diag device can not find the DME.

What happened? Maybe some water causing a short circuit somewhere from the yesterdays problem?

For the full story I had a fault code "Battery Disconnect Unit 1" maybe its related to this fault.

Any advice?

Is He battery charged ?

I've had similar drastic sounding messages when my battery went flat onetime

I measuerd 12,5V.

It was a fuse blown inside the box engine department.
Also my thermostat heater cable burnt out. Very nice..