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Cutting and resoldering Haldex wiring.

Greig300 Apr 22, 2014

  1. Greig300

    Greig300 Member

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    Had the S3 on ramp today because the traction control light is permanently on... I knew why it's the Haldex plug has completely corroded and the pins have come off inside the plug connector. Can we cut the plug connector and resolder the wiring together? Without any issues? Thanks
     
  2. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow... Staff Member Moderator Audi S3

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    Soldering them together will work fine... problem you will have is if you need to remove the rear diff for any reason you can't disconnect it easily and if your car is an early APY it may not have a fuse for the haldex so running on a dyno may present an issue if you ever choose to do so as you can't easily disconnect the haldex to run on 2WD dyno's

    You could use bullets and sockets but unless you wrap the whole lot up properly to prevent water ingress then the issue may well happen again...

    <tuffty/>
     
    Greig300 and snowy like this.
  3. snowy

    snowy Active Member

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    You could use RS232 serial plug assemblies

    eg male & female
     
    Greig300 likes this.
  4. Greig300

    Greig300 Member

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    Thanks for the replys. I will probably just cut and resolder the cable and protect it all.
     
  5. RobinJI

    RobinJI Active Member

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    <tuffty/> likes this.
  6. snowy

    snowy Active Member

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    I've only ever seen haldex plugs with 7 out of 8 pins slots used
     
  7. Greig300

    Greig300 Member

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  8. snowy

    snowy Active Member

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    Guide here to repairing your plug from vwvortex
     
    BAMS3Q likes this.
  9. Greig300

    Greig300 Member

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    That guide is excellent thanks
     

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