Quote:
Originally Posted by C4R 100N
Plenum area where ECU housing, A/C bits other? stuff is located was full of water. I pumped it out
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Progress at least. 
If the plenum is full of water (been there, got the t-shirt) it's the plenum drains (big drains) that are the main culprit, they will be blocked with debris.
Botang's hole is a secondary minor irrelevance in that case, it allows water to flow through into the footwell in the cabin, potentially wetting the relay panel.
In a RHD car it's difficult to get at because of the ECU box.
I clear my big drains (regularly) with hot water, detergent and lots of sucking and blowing through a flexible pipe pushed as far down into them under the HVAC intakes as I can get. After syphoning out as much as I can first of course.
Another important point is that dirty water from the plenum overflows and somehow finds its way into the cabin via the HVAC system and into the HVAC condenser tray.
That then causes the condenser drains (which are much smaller) to get blocked; they're designed on the assumption that only clean water from the air conditioning system dehumidifier ever gets to them - how wrong that is!
So you'll need to get the transmission tunnel side panels off and unblock the famous "orange drains" as well.
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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; 27th July 2020 at 08:22 AM.
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