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D2 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc

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  #1  
Old 1st October 2013, 04:14 PM
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steamship steamship is offline
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Default Identified my Blown Fuse Problem

One of the minor issues I've had since getting the A8 is that it was continuously blowing the fuse for all the interior lights. I also noticed that when this happened, I didn't get the indicator flash when locking or unlocking the car. The alarm horn didn't work either.

After scouring the forum, there was a comment about the batteries in the alarm horn causing corrosion, so with Saturday being a good day and me being reasonably okay, I set about trying to locate the alarm horn, and this is what I found:

Two of the pins heavily corroded and part of the plastic missing:


Front and back views of the circuit board:




With this removed, I replaced the 10A fuse, and so far, everything is fine. If I'm up to it, a trip to the scrapyard tomorrow and hopefully I can pick up the alarm and maybe part of the loom.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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  #2  
Old 1st October 2013, 10:07 PM
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notorious notorious is offline
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Excuse my ignorance, but where that alarm circuit is board is located in the car?
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  #3  
Old 1st October 2013, 11:48 PM
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steamship steamship is offline
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Quote:
Originally Posted by notorious View Post
Excuse my ignorance, but where that alarm circuit is board is located in the car?
The alarm horn is located behind the trim in the left side of the boot behind the CD changer. Didn't know where it was myself until I started searching for it, in all honesty. It's amazing what other electrical gizmos are lurking in there as well. Since the alarm was knackered anyway, I decided to pull it apart to see how much damage the leaking batteries caused.

Was thinking of doing a writeup on it for the forum, once I get a replacement, since it appears to be a common issue.
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2001 A8 D2 FL 3.7 Q - LPG Conversion, Engine: AKC, Gearbox:FBB, Colour:LY5X Aqua Blue pearl effect, Interior:WJ light beige/dark beige valcona leather with burr walnut inserts

My DIY jobs - Replaced alarm horn, Replaced Coolant Temp sensor, Updated RNS-D firmware, Installed Reversing Camera and Digital TV, Dashcam Installation, Retrofitted Rear Blinds, Auto-Dimming Rear View Mirror, Chrome Boot Struts

Sold! 2008 S8 D3 5.2 V10 - Engine: BSM, Gearbox:KLW, Colour:LY7F Suzuka Grey Pearl Effect, Interior:Black/Black with Silver/Black valcona leather with carbon atlas inserts, Bang & Olufsen, Heated windscreen, Soft-close doors, TV, DAB, AMI, Quad Zone, Auto Boot, Auto dim Mirrors, Keyless entry, PDC with rearview camera, AFS II Headlights

My DIY jobs - Fan Jet Windscreen Washers, Retrofitted Electric Side Blinds
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  #4  
Old 2nd October 2013, 07:01 AM
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The_Laird The_Laird is offline
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Wow - what a mess! Looking forard to write up and then I'll check mine.

Glad you got problem identified.
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2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim.
Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .
Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not - nope, definitely not - horrible botch!).
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