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04 Plate Audi A3 2.0 FSI Electrical fault

Hi, I have an 04 plate Audi A3 2.0 FSI which shows the bonnet is constantly open on the dash indicator (it is actually properly closed). Front wipers work when car is in motion but stop when car stops. Washer motor will not activate. When locking the car, indicators do not flash but they do when unlocking and the alarm is super-sensitive. Has only started to happen since battery recently replaced.

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Audi and vw have this problem, micro switch comes on new latch.

Posted on Nov 08, 2018

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In the bonnet catch there is a micro switch and sometimes they come out of there location so when you shut the bonnet the switch is still open . If it's in its propper location then id check the wires if the wires are good probably the switch is worn, temp fix is to join the wires that should do he the problem until u get a new 1

Posted on Nov 08, 2018

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Check both ends of battery's earth lead.
Remove, clean all surfaces with emery/sand paper, replace and seal with grease or vasaline.
If this is not the fault - it worth doing and eliminates something.
Hope this helps.

Posted on Nov 08, 2018

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Posted on Jan 02, 2017

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SOURCE: jeep grand cherokee 2000 3.1 td alarm indicator light situated on dashboard

If this is an after market alarm it could have been turned off.

Posted on Oct 22, 2008

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SOURCE: no wipers no horn no indicators

your multi function switch is bad. hope this help buddy

Posted on Dec 17, 2008

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SOURCE: First: alarm went off on its own.(mazda 6 2003).

there is often a small back up battery in the immobiliser unit itself, if you can locate this unit and replace the battery with the ignition on / engine running, then it should not need recoding and work fine after that. The other thing that could be wrong is the key battery (if the fob has one) or the transponder chip in the key head. If the key signal is low the immobiliser lamp will light during driving, but this does not explain the alarm going off. That is more likely either a poor vehicle battery, alarm / immobiliser back up battery, or another electrical fault such as water leakage into a tail-light or even the alarm unit itself when it rains. A lot of alarms are voltage sensing and when the vehicle is parked they will alarm if the battery voltage changes for any reason, though not during driving so the battery in the immob is my first choice to look at.

Posted on Oct 24, 2009

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SOURCE: Ford Fiesta Bonnet Catch - daughter just bought 04

Lube the cable and work it back and forth. Also it could've been in an accident and not properly aligned.

Posted on Oct 29, 2009

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SOURCE: Audi A6 Avant 1.9TDI Limited 2003 alarm wont activate

should be in your owners manual if you have one. or there should be an options menu through the switch in the instrumnet cluster or through the I-drive if you have one

Posted on Nov 16, 2009

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