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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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07-05-2009, 23:43 Subject: Audi A5 Headlight Wiring Diagram |
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Hello.
Does anyone happen to have a wiring diagram for the headlights of an Audi A5 with bi-xenon and cornering lights? MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:45.
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dieselmartin Profi-Schrauber


Joined: 03/13/2003 Posts: 10121 Karma: +29 / -0 Location: in der Werkstatt 2007 Volkswagen Passat Premium Support
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08-05-2009, 8:35 Subject: Audi A5 Headlight Wiring Diagram |
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The headlights won't have a "schematic," they are "simple" devices.
It will only contain a plug, 2-3 cables, and many lamps.
"It's all controlled by the vehicle's network control unit."
Okay, please provide the German text you would like me to translate into English. I will only provide the translation. Transparency, Teamwork
... there was another T.
I don't know what the f*ck it was.
Translated on 05-08-2026, 22:46.
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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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08-05-2009, 8:43 Subject: Audi A5 Headlight Wiring Diagram |
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Well, it's connected to a 14-pin connector after all. MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:47.
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matthiasTDI96 Profi-Schrauber

Joined: 02/27/2003 Posts: 5886 Karma: +251 / -0
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08-05-2009, 9:16 Subject: Audi A5 Headlight Wiring Diagram |
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wow, so that the Audi's "brain" is located in the headlights, and I would have bet like Martin that the commands come from the BNSG (German Federal Constitutional Court) and are implemented in the headlight. Probably each individual daytime running LED is controlled separately  .
Silly question aside, isn't the A5 also somehow an A4 or A6? Surely they don't develop a completely separate wiring harness just for it...
Translated on 05-08-2026, 22:47.
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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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08-05-2009, 9:19 Subject: Audi A5 Headlight Wiring Diagram |
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matthiasTDI96 wrote: | | Silly question aside, isn't the A5 also somehow an A4 or A6, at least they probably didn't bother developing a completely new wiring harness... |
Okay, let me see. The ballast for the xenon headlights is also from an Audi A4. It starts with an 8K number. MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:48.
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dieselmartin Profi-Schrauber


Joined: 03/13/2003 Posts: 10121 Karma: +29 / -0 Location: in der Werkstatt 2007 Volkswagen Passat Premium Support
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08-05-2009, 9:25 Subject: Audi A5 Headlight Wiring Diagram |
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Hmm?
The 3C also has a 12 or 14-pin connector attached to it.
Besides the xenon ballasts, there's nothing else intelligent about it.
Okay, please provide the German text you would like me to translate into English. I will only provide the translation. Transparency, Teamwork
... there was another T.
I don't know what the f*ck it was.
Translated on 05-08-2026, 22:49.
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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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08-05-2009, 9:29 Subject: Audi A5 Headlight Wiring Diagram |
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dieselmartin wrote: | | The 3C also has a 12 or 14-pin connector attached to it. |
If I remember correctly, your Passat also has cornering lights, right? MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:50.
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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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08-05-2009, 10:21 Subject: Audi A5 Headlight Wiring Diagram |
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Do you have the wiring diagram for my Passat, or for an A4/A6? MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:50.
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dieselmartin Profi-Schrauber


Joined: 03/13/2003 Posts: 10121 Karma: +29 / -0 Location: in der Werkstatt 2007 Volkswagen Passat Premium Support
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08-05-2009, 10:26 Subject: Audi A5 Headlight Wiring Diagram |
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The 3C with xenon headlights has "everything".
- Static cornering light
- Dynamic cornering light
- Bi-Xenon (which includes the shutter mechanism).
- and even parking lights  .
[img]/download.php?id=2695[/img]
And yes, I have that "how-to" guide, and it contains battle plans.
I'll check on the weekend to see which one... Transparency, Teamwork
... there was another T.
I don't know what the f*ck it was.
Translated on 05-08-2026, 22:51.
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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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08-05-2009, 10:30 Subject: Audi A5 Headlight Wiring Diagram |
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dieselmartin wrote: | And yes, I have that "how it's done" document, and it contains battle plans.
I'll check on the weekend which... |
Thank you in advance. MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:52.
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dieselmartin Profi-Schrauber


Joined: 03/13/2003 Posts: 10121 Karma: +29 / -0 Location: in der Werkstatt 2007 Volkswagen Passat Premium Support
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12-05-2009, 20:18 Subject: Audi A5 Headlight Wiring Diagram |
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Sorry.
The book only contains information about standard H7 bulbs, not xenon bulbs.
Okay, please provide the German text you would like me to translate into English. I will only provide the translation. Transparency, Teamwork
... there was another T.
I don't know what the f*ck it was.
Translated on 05-08-2026, 22:53.
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TDI-GTI-4-Motion Profi-Schrauber


Joined: 02/22/2009 Posts: 3865 Karma: +127 / -0
2002 Volkswagen Golf  Premium Support
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12-05-2009, 23:45 Subject: Audi A5 Headlight Wiring Diagram |
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dieselmartin wrote: | Sorry,
The book only contains information about standard H7 bulbs, not xenon bulbs.
m; |
"It's not that bad. By chance, I had a 3C in the shop yesterday for a tire change. Of course, I took advantage of the situation and measured some things on the headlight connector. The 3C also has a 14-pin connector, but only 8 pins are actually used." MfG. Michael
VW Golf IV TDI GTI 4-Motion Bj.2002 MKB/GKB: ARL/FEK
VW T4 Pritsche TDI Bj.1999 MKB/GKB: AXG/AFK (Selfmade)
Translated on 05-08-2026, 22:54.
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