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  • Guide for headlamp H4 to H1 conversion wiring mod

    I'm replacing my 3B headlamps with the ABY projector lamps, could someone PLEASE post a guide on re-wiring it so the dipped beams stay on when you hit the brights? TIA!
    Painfully said goodbye to my baby....

    2001 A4
    Silver with black leather, Symphony, sport package, S4 bumper and wheels

  • #2
    Feel I owe you interest on this one Mik - especially after your time and expense with the new fangled forum. Problem is this info is buried DEEP in the schematics and I only have a partial set for car before 1994. Erwin is such a mess that when I ordered the 1992 set of 80 schematics that I got the 1994 set of Cabrio & Coupe schematics instead (which aren't listed anywhere).

    Who ever feckin' said the Germans are organised Erwin is so frustrating that way - and as for their tech support - well lets just say its a bit lacking. Patience dear boy

    Paul
    Paul Nugent
    Webmaster http://S2central.net
    Administrator http://S2forum.com

    1994 S2 Coupe ABY - aka Project Lazarus
    2001 A6 allroad 2.5TDi - family tank
    2003 S4 Avant 4.2 V8 - daily burble

    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

    There are only 10 kinds of people that understand binary - those that do, and those that don't

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    • #3
      Hehe...thanks mate
      Painfully said goodbye to my baby....

      2001 A4
      Silver with black leather, Symphony, sport package, S4 bumper and wheels

      Comment


      • #4
        The only obvious difference is in the stalk switchgear - you can see different internal wiring for the later type headlight switch which allows the the normal beam to stay illuminated when the high beams are turned on.

        Have to look at ETKA and see if that theory is borne out with regards switchgear.

        Dunno if the later switch can plug directly into the location of an old one and accept the old connector. I'm assuming you have 8 (eight) pins on your headlight flash/dim switch ?

        Paul
        Paul Nugent
        Webmaster http://S2central.net
        Administrator http://S2forum.com

        1994 S2 Coupe ABY - aka Project Lazarus
        2001 A6 allroad 2.5TDi - family tank
        2003 S4 Avant 4.2 V8 - daily burble

        Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

        There are only 10 kinds of people that understand binary - those that do, and those that don't

        Comment


        • #5
          I'll check...maybe we could do some comparing....
          Painfully said goodbye to my baby....

          2001 A4
          Silver with black leather, Symphony, sport package, S4 bumper and wheels

          Comment


          • #6
            Further investigation leads me to believe that a short circuit applied between pins 7 and 8 (seven & eight) of the 3B headlight flash switch (with 2.5sqmm cable) will have the desired effect of keeping dipped beams ON when the high beam position is selected. Do this directly between those two pins with a short section of cable.

            This ties pins 56 and 56b together. If it is possible, it would be cleaner to swap the existing yellow wire on pin 56b over to pin 56 where it would be commoned with the always on output from the light switch (which enables the fog light relay for one thing).

            Terminal 56b on the 3B style light switch is a switched output (which goes off when you select high beam) so just shorting it with T56 is no problem - as long as you don't expose the thinner cable out of T56 to the higher current demands of the dipped beam circuit - hence the comment about connecting to the actual pin on the switch - not be T'ing into the existing white cable at T56 (pin 8).

            No guarantees of course - need you to check it with a multimeter first...

            Paul
            Paul Nugent
            Webmaster http://S2central.net
            Administrator http://S2forum.com

            1994 S2 Coupe ABY - aka Project Lazarus
            2001 A6 allroad 2.5TDi - family tank
            2003 S4 Avant 4.2 V8 - daily burble

            Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

            There are only 10 kinds of people that understand binary - those that do, and those that don't

            Comment


            • #7
              Cheers mate...I'll check it out...
              Painfully said goodbye to my baby....

              2001 A4
              Silver with black leather, Symphony, sport package, S4 bumper and wheels

              Comment


              • #8
                Mik, whilst scouring 20v.org for some ifo for me, I saw this: http://20v.org/light.htm#autocheck it *may* not apply for our cars as the sites US based....

                Martynf
                Martyn
                -------------------------------------

                www.vagparts.com

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                • #9
                  Nice link Martyn....
                  Painfully said goodbye to my baby....

                  2001 A4
                  Silver with black leather, Symphony, sport package, S4 bumper and wheels

                  Comment


                  • #10
                    W E L L ? ? ?

                    Did the alleged headlight wiring tweak do the trick ?

                    Let me know pls :wacked:

                    Paul
                    Paul Nugent
                    Webmaster http://S2central.net
                    Administrator http://S2forum.com

                    1994 S2 Coupe ABY - aka Project Lazarus
                    2001 A6 allroad 2.5TDi - family tank
                    2003 S4 Avant 4.2 V8 - daily burble

                    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

                    There are only 10 kinds of people that understand binary - those that do, and those that don't

                    Comment


                    • #11
                      I'll try to get to it tomorrow, still have to install the new lamps...
                      Painfully said goodbye to my baby....

                      2001 A4
                      Silver with black leather, Symphony, sport package, S4 bumper and wheels

                      Comment


                      • #12
                        I've upgraded mine 2 month ago. It only needed to move the thgick yellow wire to 56b (which was marked 8 on my plug).
                        There is a german manual available at http://www.meckisfaq.de/antworten/au...p89_de/de.htm.
                        I hope that helps.
                        Marcel
                        ________________________________________
                        current: RS2, + A2 TDI 3L
                        Favourit: Coupe Quattro Typ 85 or 859. I had one.
                        If you know someone in Switzerland selling a Ur-20V --> tell me.

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