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#1
10th July 2016, 11:10 AM
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What is this plug/socket connecting please?
Hi guys,
Having some issues with water getting into the car so started cleaning the leaves etc that accumulated under the bonnet/windscreen. Whilst doing so I noticed that one of the plugs have been disconnected and sealed with a rubber cap on one end. I have reconnected it back to start hearing some sort of noisy 'fan' inside the centre HVAC air intake box. Anyone knows what is this powering? Seems like the previous owner must have disconnected it because of the noise? Anything that the car is missing with this disconnected? Cheers. Tom
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Tom VW SCIROCCO GT2 '92 |150BHP -LHD VW SCIROCCO GTX '84 |150BHP -RHD VW SCIROCCO MK1 '78 | ??BHP -LHD PORSCHE 924 '81 PORSCHE 944 '84 Audi A8 4.2 Quattro PF 
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#2
10th July 2016, 11:14 AM
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Almost certainly the lead to the auxiliary water pump. Can get very noisy.
I had to disconnect it on both my S8's, though it's easier to do on a PF which I guess yours is. (Edit, just read that in your sig) Very little effect, takes a bit longer to get warm air in the cabin in winter. And the "rest" function on the heater no longer works properly.
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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! 
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#3
10th July 2016, 11:58 AM
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Thanks a lot! Will keep it disconnected then
 And yes, it is PF, as you noticed. Cheers, Tom
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Tom VW SCIROCCO GT2 '92 |150BHP -LHD VW SCIROCCO GTX '84 |150BHP -RHD VW SCIROCCO MK1 '78 | ??BHP -LHD PORSCHE 924 '81 PORSCHE 944 '84 Audi A8 4.2 Quattro PF Last edited by gti69; 10th July 2016 at 12:13 PM.
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#4
10th July 2016, 02:05 PM
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For the water ingress problem search for Botangs Hole, a very common problem on the D2 both pre and facelift suffer.
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles
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