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D2 - Body and Exterior Bumpers, bonnets, glass, trims - Everything outside

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  #21  
Old 18th July 2017, 09:21 AM
diplomat2.6 diplomat2.6 is offline
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I've had this issue too. I really is hard to understand why quite so much water gathers in the boot. I could understand a cupful, but at its worst, I think I would be looking at nearly 2 litres.
If you wanted 2 litres of water in the boot lid, I don't think any method you could choose would be nearly as effective as one that circumstance creates on the A8 D2!
Can you still buy the grommets?
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  #22  
Old 18th July 2017, 09:27 AM
HPsauce HPsauce is offline
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Grommets are moulded onto the tubing.
(Edit: Can be split/peeled off so maybe it's just glued)
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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; 3rd October 2017 at 03:20 PM.
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  #23  
Old 18th July 2017, 09:30 AM
paulrstaylor paulrstaylor is offline
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Had this issue with my S4, was the cable gromit to blame as it enters the boot lid. Resealed that and all dry
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  #24  
Old 18th July 2017, 09:58 AM
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johnny_quattro johnny_quattro is offline
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Thanks all for the info. I will attempt to seal this before our next torrential downpour.
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2010 B8 S5 Sportback quattro 3.0 Supercharged in Sprint Blue (current girlfriend)
2000 D2 A8L quattro 4.2 in Audi silver (my ex-girlfriend)
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  #25  
Old 31st July 2017, 11:44 PM
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27litres 27litres is offline
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My boot grommets aren't in particularly good shape, but my boot isn't leaking (yet).
So I've just bought some of this to experiment with!
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Current:
2001 Audi S8 - Brilliant Black with Black interior, C5 RS6 rims (whenever I actually put them on...), Solar Sunroof, Tinted side and rear glass, RNS-D, Grom, Bose, clunky old phone in arm rest!
2002 Audi S8 - Project
Replacement head coming arrived thanks to MJ
Silver with Black interior. All features as the '01, with the 'S' mode auto shifter. Dodgey rear tint (need to find a way to get rid of that).
Family:
2009 Volvo XC90 V8 R Design
- has a louder more obnoxious exhaust than the S8, sounds great! Love this thing - Q7 was double the price, and certainly not double the car!

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  #26  
Old 3rd October 2017, 03:12 PM
HPsauce HPsauce is offline
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I just used some (Sugru) on one of my grommets, see this thread: http://forum.a8parts.co.uk/showthread.php?t=11483
__________________
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 03:20 PM.
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  #27  
Old 4th January 2023, 05:54 PM
Simon Wallwork Simon Wallwork is offline
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Thinking this through a little, I wonder if the boot interior is actually at a little bit of low pressure, due to the A8 aerodynamics?

It's quite possible that a low pressure area forms behind the car at speed, causing air inside the boot to leak out- lowering the pressure within the boot and sucking water in through any available wet area.

I know mine was the grommet under the leading edge of the boot door, but why water would choose to go uphill into the boot door, when it could go down into the gutter is less clear.
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