Servicing the Audi Q3, Part 4: Parasite Testing

Nov 2021 | 1 comment

The Q3 and Tiguan share many components and controllers. This article discusses the correct sequence to measure a possible parasitic draw. Both of these models do not have a draw of any kind. The interest is network activity and the length of time s...

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1 Comment

  1. Matthew Simpson

    Common problem after 2014 cars is the Haldex controller on the side of the rear diff. They have both a permanent 12v and ignition supply. When they corroded inside due to salt/water ingress, part of the PCB corrodes that controls the standby/sleep function so it stays awake permanently.

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