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D3 - Common Faults Quick links to all known common faults and their solutions

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  #1  
Old 26th September 2019, 09:37 AM
Furryhobnob Furryhobnob is offline
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Originally Posted by Nognar View Post
HVAC orange drains by the transmission tunnel
I went to check the drain behind the footrest, but its bone dry there, it seems to be dripping from the dash as the bonnet release has water on it, any other ideas?
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Old 26th September 2019, 09:39 AM
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Originally Posted by Furryhobnob View Post
I went to check the drain behind the footrest, but its bone dry there, it seems to be dripping from the dash as the bonnet release has water on it, any other ideas?
In that case could either be blocked sunroof drain, blocked scuttle drain or windscreen leak
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Old 26th September 2019, 11:35 AM
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Mine was the aircon drains!!
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Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
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  #4  
Old 26th September 2019, 11:44 AM
Furryhobnob Furryhobnob is offline
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Quote:
Originally Posted by Architex_mA8tey View Post
Mine was the aircon drains!!
Where are these located?
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  #5  
Old 27th September 2019, 07:33 AM
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Originally Posted by Furryhobnob View Post
Where are these located?
Either side of the tunnel up nearly as high as the top as the footrest but back towards the driver by about 9 inches as per pictures for drivers footwell. The other side is reflected on the other side of the transmission tunnel but same position
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Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
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  #6  
Old 27th September 2019, 07:39 AM
Furryhobnob Furryhobnob is offline
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Thanks for your help guys, going to stick it in the garage and investigate when i have time, if it is the ones you're talking about, is it a case of just emptying the water in there, or did you use some compressed air or something to try and unblock wherever it is blocking from?
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Old 29th September 2019, 02:49 PM
Furryhobnob Furryhobnob is offline
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Well finally had time today to try and source the issue and sort it.
My headlining was damp,so the culprit was a blocked right sunroof drain, luckily my dad has an air compressor in his garage so i soon had it unblocked, was just a few old manky looking leaves that came out.
Luckily water is running freely now and its raining again so time will tell.
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Old 17th October 2019, 02:36 PM
irelandbuyer irelandbuyer is offline
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HI All,

Can I urge caution when using garage air compressors to clear out the drains. If they are extremely blocked a big blast of air could blow the drain pipes. It is much better to try to access the end of the drain plug have a look there and see how clogged it is.

I bought a hand weed killer pump sprayer (the ones with the srap on them) from I think Aldi or LIdl, took the spray head off which leaves the brass tube. This actually fits perfectly into the drain hole in the sunroof. Pump up some pressure, not too mad and that'll drain it. I use warm/hot water with some mild detergent until i see it is running clear. I just keep it in the garage and i do it every now and then...

Good luck with the drain cleaning...i must go and do mine again soon...
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