I have checked my cover and its there and in the right place but i still get a small pond in the drivers footwell when it rains heavily had the scuttle off and there doesnt seem to be anything missing in that area, rather baffled
and damp at the moment. Suggestions and solutions most welcome
Ok the problem is water in the compartment under the plastic scuttle cover, I'll call it the 'wiper bay'.
The seals between the plastic covers and the windscreen become innefective with age allowing water to get between the windscreen and covers, causing a flood inside the wiper bay. Also the air inlet grille is open to the elements, (just under the bonnet when it is shut), when the car is stationary the rain pours down the windscreen straight into the slots, adding to the flood in the wiper bay!. even more so if the car is parked with its nose uphill.
there is a drain hole in the centre of the floor of the wiper bay but unfortunatly the bay is flat bottomed, which means that it can only drain properly when the car is dead level, this is made worse by the 'rubber grommet one way valve thing' in the drain hole which prevents the last ten mm or so of water draining. The standing water then finds its way between the scuttle seams and into the footwell. water will always find a way out eventually.
The plastic cover over the fan intake hole is the best example of an afterthought lashup that I've ever seen.
So what we have to do is stop water getting into the wiper bay in the first place and second to drain any that does get in.
silicone seal all the joints between the plastic cover and the windscreen, also between the two halves of the plastic cover, also the top rear edge of the 'fan inlet hole cover',
bin the stupid rubber grommet thing,
also I taped up the air intake slots. no effect on blower efficiency.
daft design really, needs some sort of cover or duct over the intake slots and a drain hole at both ends of the wiper bay.
If you have a sunroof the drain tubes lead directly into the wiper bay, now thats a really good idea, NOT! Extend the drain tubes so's they exit through the wiper bay drain hole.
Alfas are mostly really well designed, but boy when they hit the vino on a Friday lunchtime!! probably the same guy that designed the rear demister, BMW were paying him!