As you can see from the pictures attached water has got into the top of the engine room, completely soaked the sound insulation had collected in the bilge - (I then found out the bilge pumps weren't working but that's another story!)
The culprit is the draining hole from the cockpit into the storage under the rear seat - for some reason Bavaria put the draining hole directly above a hole for the water pipes for the BBQ which leads directly into the top of the engine room.
Why did they do this????
Anyway, I have now tapped up the hole carrying the BBQ pipes so no water can get in - problem solved easily but very annoying such a simple thing can be overlooked.
Rant over
