Must agree with FreeSpirit, mine is a 2010 and has the cover but the poorly designed weatherproofing allows water in all over the place and the cover simply redirects some of it onto other items in the engine bay. Mine had rust on any unplated bolts when delivered new.
The rubber strip along the bottom of the windscreen relies on a sticky contact area to seal but mine was poorly sealed from new. Further the joint in the centre relies on a piece of foam to seal the two halves together and I have found that water drips directly onto the engine from this source as well.
Further rant is that the main drain tube on the right hand drive vehicles is on the right hand side!!! Result is that normal road camber means that water builds up on the left hand end of the channel below the windscreen and drains out through the poorly sealed joint in the centre of the channel straight onto the engine.
FIAT have been building cars forever and should be able to do better than this.
Perhaps their logic is that as Ducatos are primarily commercial vehicle used daily the engine will dry the water off, however motor homes often sit around unused for a time and the water just corrodes everything.
Regards,
Barryp