1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

A3 Retrofitting front fogs on a facelift (wiring diagram and advise please) :)

Discussion in 'A3/S3 Forum (8L Chassis)' started by sulaiman, Apr 22, 2010.

  1. sulaiman
    Offline

    sulaiman Member

    Joined:
    Jun 2, 2006
    Messages:
    279
    Likes Received:
    0
    Hi Guys,

    Well I have a facelift a3 with no fog lights on the front, I have managed to source both front fogs, fog lamp grilles, both the connectors for the front fogs and the headlamp switch for the interior.

    What I need to do now is make up the wiring with your help :) , Would someone be so kind to get me the wiring diagram for the front fog lamps? That should be enough to guide me in to making the loom.

    I am aware you can buy the loom from kufatec but I don't think 39euros is justified for 2 connectors, some wiring, a relay and a relay holder.

    I'm sure I can build it for cheaper and that is my mission, in return I will be sure to do a guide for any other members looking to do the same.

    Many thanks,

    Sulaiman
    Last edited: Apr 22, 2010
    #1
  2. sulaiman
    Offline

    sulaiman Member

    Joined:
    Jun 2, 2006
    Messages:
    279
    Likes Received:
    0
    any advise guys? :)
    #2
  3. TDIQ
    Offline

    TDIQ 8L > 8P > 8V

    Joined:
    Jul 26, 2009
    Messages:
    777
    Likes Received:
    6
    The Haynes manual has a wiring diagram, which should help but I personally don't see the point in retrofitting front fogs. I know they're nice and it's up to you but for the money, and how little use they'd get it seems a little pointless...
    #3
  4. sulaiman
    Offline

    sulaiman Member

    Joined:
    Jun 2, 2006
    Messages:
    279
    Likes Received:
    0
    Do you have the Haynes manual for the Audi a3? If so could you scan the diagram for me and post it up on this thread?

    Normally I would agree with you with regards to retrofitting, but its something I like, have purchased and would like to get full use out of hence wiring them up and not just having them in place. Cheers
    #4
  5. A3-8PA
    Offline

    A3-8PA Member

    Joined:
    Aug 7, 2011
    Messages:
    104
    Likes Received:
    0
    Hi, Did you manage to retrofit the fog lights... I m in the same situation and needs some guidance and help...
    #5
  6. sulaiman
    Offline

    sulaiman Member

    Joined:
    Jun 2, 2006
    Messages:
    279
    Likes Received:
    0
    The only info you need is to add a wire from pin 8 of the headlight switch to a relay, and have the 12v output of the relay going to the foglight area to wire into the fog lights.
    #6
  7. A3-8PA
    Offline

    A3-8PA Member

    Joined:
    Aug 7, 2011
    Messages:
    104
    Likes Received:
    0
    Thanks Sulaiman, the situation is I have bought Fog lights + Grills + Headlight switch (with the front fog option). I am still thinking whether to go for wiring loom from kufatec or not. Did you buy in the end?

    If buying the wiring loom makes it simple then happy to spend 30 odd quid.

    Would you be able to guide me in bit more detail how to finish it off please. Also do I need coding expert as well?

    Much appreciated.
    #7
  8. sulaiman
    Offline

    sulaiman Member

    Joined:
    Jun 2, 2006
    Messages:
    279
    Likes Received:
    0
    No coding necessary, read this: FAQ: RELAYS; how they work and how to wire it up...

    [​IMG]

    Wire a relay behind the headlight switch, take 12v positive from under the fusebox (30), earth from the steering column (85), 12v signal from pin 8 of headlight switch (86), and you have 12v ready to send to the fog lights from 87.
    #8
  9. 16Klappe
    Online

    16Klappe Princess Slayer

    Joined:
    Sep 16, 2008
    Messages:
    5,191
    Likes Received:
    870
    Rip it all out and fit a set of rude boy horns, they make you go faster and everyfin' -

    [​IMG]
    #9
  10. A3-8PA
    Offline

    A3-8PA Member

    Joined:
    Aug 7, 2011
    Messages:
    104
    Likes Received:
    0
    Mate I been told that central electric module on my car (ending with J) does not support fog lights... Disappointed!!!!
    #10
  11. @udi A3
    Offline

    @udi A3 Active Member Site Sponsor

    Joined:
    May 25, 2012
    Messages:
    1,764
    Likes Received:
    175
    What is the central electic module, and where is it located?
    Looking at wiring diagrams on my car, there is nothing other than switches and relays, if you pop a new relay into an exsisting hole in the relay board, using pin 8 as you said, and live and earth from under the fuse box and steering column, run a feed though the bulkhead to the fogs, should be good to go?
    #11

Share This Page