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Charged dead battery on my W reg Audi A3 and now the driver information system does not work. What's not coming up is the display unit, clock (and date) and the milage display. Is a simple fix and, if so, what needs to be done/looked at?
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Try charging it with a trickle charger. It might come back. The alternator circuit is tricky and requires some battery power to excite the electromagnets in the alternator to start producing power. It may or may not have been triggered by the boosting battery.
please explain what a Y reg is please ,anyway i think you will find the fault is connected with drivers side master switch if the contacts go in this switch you will loose all control of the window including the passenger side control as no feed is passed to the other side of the car .
the problem is in the voltage regulator
IT is probably in the ECM which will require an ECM replacement
get it to an accredited auto electrician for a full check of the charge system to eliminate all faults , fires etc
You need to look Very closely, on the underside of the handles, for small, 'hidden' fixings to release the switch gear. The card itself,is hooked onto the door. So there aren't too many screws actually holding it all together. Good luck with that.
Your A3 should sound a warning beep if you leave your lights on. For this to happen the light switch would be in the side, or dipped position, the key out of the ignition and the drivers door open. If it does not sound the car may not be getting either the door or key signal. To check the key out signal, key the ignition to the on position, turn on the radio (probably only work if a standard radio is still fitted) then key off and remove key, if the radio goes off, its a good sign thats ok. For the door signal make sure opening the drivers door brings on the interior light on, this shows it recognises when its open. Let me know if anymore advise is needed.
As for the mic wiring, as far as I'm aware there were no standard/optional phone kits for this age A3.
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