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15-01-22, 12:04 PM | #1 | |
Grown up member
Join Date: Aug 2010
Posts: 35
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A4 no dash lights, no start.
I've had my 2005 A4 2.0tfsi quattro runaround for years. This morning it won't start, turns over but no dash lights. Checked the cambelt and it's fine, put the battery on charge but don't think that's it. Any similar experience or suggestions? Cheers.
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15-01-22, 08:16 PM | #2 |
4 ring whore!
Classic Audi Club Member
Join Date: Jul 2008
Location: Barrow in Furness, Cumbria
Posts: 2,049
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I don't wish to sound unfriendly but this forum is for "for owners & enthusiasts of all pre "A" series Audis"
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Coupe Quattro 1985 |
15-01-22, 11:13 PM | #3 |
Grown up member
Join Date: Aug 2010
Posts: 35
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How do you know that I'm not an enthusiast?
Last edited by pauly; 15-01-22 at 11:49 PM. |
16-01-22, 08:38 AM | #4 |
Senior Member
Classic Audi Club Member
Join Date: May 2016
Location: Displaced Northerner in Essex
Posts: 1,528
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I had similar issues with my ur Quattro - turned out to be the X contact relief relay.
It shuts off power to lots of parts of the car while the starter is engaged. I'm not familiar with A4's but Google says relay position R6 Hope this helps.
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1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above |
16-01-22, 11:25 AM | #5 |
4 ring whore!
Classic Audi Club Member
Join Date: Mar 2011
Location: Scottish Borders.
Posts: 7,520
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Assuming you've checked all fuses in cabin and under bonnet?
I seam to remember unscrewing the torx type screws at the underbonnet fuse box, unscrewing these screws lifts the top half of the fuse box which resets the module within the box. Re-tighten the screws and see if it's any different......worth a shot!! Best of luck. |
16-01-22, 05:47 PM | #6 |
Grown up member
Join Date: Aug 2010
Posts: 35
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Thanks for the replies. Googling it suggests it's related to the instrument cluster/immobiliser. And it's £175 to remedy it. I'll check the relays under the ECU on the bulkhead for water contamination though. Many years ago my 2.6 V6 80 Avant stranded me, and the RAC man did all his usual checks, last thing he tried was disconnecting the battery and rubbing the + and - leads together. The car started straight up after that, and I used that trick a few times before I sold it. Didn't work this time sadly
Last edited by pauly; 16-01-22 at 11:48 PM. |
23-02-22, 01:28 PM | #7 |
Grown up member
Join Date: Aug 2010
Posts: 35
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Just in case it helps someone else, the problem was related to a fault in the instrument cluster/immobiliser. It didn't help that the repairer didn't fix the issue on the first attempt. But I got there in the end.
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23-02-22, 03:41 PM | #8 |
Senior Member
Classic Audi Club Member
Join Date: May 2016
Location: Displaced Northerner in Essex
Posts: 1,528
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Always good to hear how these things work out, thanks for posting. Pleased you got sorted.
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1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above |
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