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    Thread: AWD stopped working

    1. Member
      Join Date
      Jul 30th, 2008
      09-18-2012 01:44 AM #1

      I got a A3 3.2, but since most duudes there are 2.0T, I figure I ask my question here.

      My AWD stopped working a while ago and I have been driving in FWD for a while. Now winter is starting to come and don't want to be in FWD mode. I have the HPC controller

      I scanned my car and it came out with this:

      Address 22: AWD Labels: None
      Part No: HW0 5Ha lde x
      Component: Tuning
      Coding: 0000001
      Shop #: WSC 00000 000 00000
      VCID: 5A9DBE0A9504583

      1 Fault Found:
      00448 - Haldex Clutch Pump (V181)
      014 - Defective - Intermittent

      It indicates the electrical primer pump being defective. Does that mean if I bring the car in as is, they won't swap out my HPC controller or the valve/pressure sensor that came with it? It would be too much a PITA to swap it out just for warranty service (I have some extended warranty that comes with my auto insurance). Hopefully, I can find a mod friendly shop that doesn't know or care that blue box is a aftermarket part.

      I saw this thread where it was just a connector that had to be re-plugged:


      I remember there were a couple of plugs that goes to the HPC module, is one of them directly from the V181 Haldex Clutch Pump?

    2. Member
      Join Date
      Nov 28th, 2002
      Shelton CT
      too much to list
      10-12-2012 02:00 PM #2
      Lets check electronics first, lmk when u have time in the next two weeks.
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