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

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Old 29th September 2019, 02:49 PM
Furryhobnob Furryhobnob is offline
Join Date: Jun 2019
Location: Leicestershire
Posts: 47

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 Today, 02:36 PM
irelandbuyer irelandbuyer is offline
Join Date: Aug 2015
Posts: 85

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...
2007 Audi A8 D3 3.2 FSI
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