Now I've also fixed the scuttle panel seal to the windscreen I think these two items together have been a major contributor to my blocked drain woes.
The way I see it now is:
1. Debris washed down windscreen, bypasses trim with smallish mesh at base as it's very badly fitted. Large (and small) bits end up in scuttle eventually blocking those drains.
2. Degraded foam seal around HVAC intake allows air (and debris) to be drawn in directly from the scuttle area, bypassing the normal route through the pollen filter. Result is lighter/smaller bits, such as those damned birch seeds, gets into the HVAC system eventually blocking the aircon drains.
The new seal I've put around the HVAC intake, as the photo shows, is quite deep now at the front edge and a good tight fit. As is the trim at the base of the windscreen. Combining all that with regular use of car/windscreen covers and I'm optimistic of fewer "sloshing" incidents in future. 
A good test is how many seeds come blasting out of the vents in the car in future. 
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! 
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
Last edited by HPsauce; 3rd October 2017 at 02:34 PM.
|