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Old 17th April 2023, 05:12 AM
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Default Perplexing indicator fault

G'day folks,

I have an interesting fault currently...
My indicators aren't working ("eh, who needs 'em, I'm an Audi Driver yo!").

However, I'm confused with fixing them.
As far as I can tell, the indicators and the hazards use the same relay in the relay panel (J2).
Well, the hazards work perfectly!

Intermittently, I can get the indicators to come on solidly (no flash), then last night on my way home from work (it was 2am, two turns to my street, just over a km distance - I chanced it) they actually flashed very slowly when I applied the brakes. Came off the brakes and they went back to solid (no flash).

Ok, so maybe it's the switch... I'm not convinced with that behaviour though. So how can I test the switch - with the ignition off, I turn the switch and the side parking lights come on, along with the interior buzzer. I tested this multiple times and it works every time.
So I don't think it's the switch.

Back to the relay then...

Any thoughts?

I'll give feedback if I solve it!
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Cheers

Marty


____________________
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!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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Old 17th April 2023, 05:58 AM
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More confusion...

Where is "Passenger Compartment Relay Panel No.4"?
As that supposedly contains the "Turn Signal J1" and "Hazard Warning Light J2" relay/modules in the one housing at the R1 location.
Judging by other relays on the same panel (coolant fan speed control, horn, windows, sunroof, steering wheel), it would want to be reasonably easy to access.

Under the MDF panel, I can only identify Relay Panels 1, 2 and 3.
I cannot see No.4.

So I now have no idea where to find the indicator relay, except I'm thinking it's part of the hazard light switch similar to a B5, as that has a physical tapping (like a bi-metal strip) when the hazards are operating...
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Cheers

Marty


____________________
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!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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  #3  
Old 17th April 2023, 06:40 AM
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27litres 27litres is offline
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FFS...
Yeah ok, I found it.
"Passenger Compartment Relay Panel No.4"
Right up the left hand side behind the glovebox...
Access a PITA, but doable
__________________
Cheers

Marty


____________________
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!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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Old 17th April 2023, 06:58 AM
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27litres 27litres is offline
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Got the relay out.

It's wet.

Could this be a botangs hole issue?


Oh... And the hazards still work! Separate relay on FL cars, clearly!
__________________
Cheers

Marty


____________________
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!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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  #5  
Old 17th April 2023, 07:53 AM
MikkiJayne MikkiJayne is offline
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Yes, botang's hole - it drips in to the indicator relay first, then down in to the relay box on to the folding mirror control unit.
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Old 17th April 2023, 07:58 AM
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Conan_the_Librarian Conan_the_Librarian is offline
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I had a similar problem. Turned out to be the hazard light switch. My indicators would play all sorts of games eventually staying on solidly. If I operated the hazard switch they would flash as expected. If I knocked it off when the indicators were off then they would stay off until I used the indicator stalk then they would act up and eventually stay on! I replaced the hazard switch and now all is well.
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Currently,
2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block.
1997 4.2 A8SQ - the Projekt. 12 years and ongoing!
1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard
2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion.
2005 C5 Allroad 2.5TDi FE - Grey - Workhorse.
2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter.

Previously
2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex
1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure.
1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex.
2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on.
1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8.
And a list of non VAG going back 40 years before I saw the light.
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Old 17th April 2023, 08:06 AM
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27litres 27litres is offline
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I've temporarily replaced the indicator relay with a spare from the never starting project silver car.

They now work as expected!

I'll buy a new one, as I don't wish to cannibalise the silver car.

Now to patch up botangs hole...

How do I get at it?
Is it behind the left front strut tower?

The ECU and TCU are there aren't they?
__________________
Cheers

Marty


____________________
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!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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  #8  
Old 17th April 2023, 09:10 AM
MikkiJayne MikkiJayne is offline
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http://forum.a8parts.co.uk/showthread.php?t=7645&page=2
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  #9  
Old 17th April 2023, 09:35 AM
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Quote:
Originally Posted by MikkiJayne View Post
Thanks Michaela - I see it, just below that a/c pipe bend.
I expect it originally had one of those sticky covers over it Audi is so fond of!
I'll find some body sealer and fix it...
__________________
Cheers

Marty


____________________
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!

Sold:
1997 Audi A4
- Hamilton's Club Sport, Achat Grey (will miss the old girl)
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  #10  
Old 17th April 2023, 09:46 AM
MikkiJayne MikkiJayne is offline
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Posts: 5,017
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Yeah just a piece of fabric tape that they painted over Stick a plastic rivet in the hole and then seam sealer over the top. Its doable with the wiper scuttle trim removed and the ecu box still in place.
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