A8 / S8 (D3 Platform) Discussion Discussion forum for the D3 Audi A8 produced from 2003-2010 and Audi S8 produced from 2006-2010

Kessy problem/question...

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Old Oct 23, 2024 | 07:13 PM
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Default Kessy problem/question...

The locked car wont unlock by my presence with key in pocket at any door. And it wont lock from pushing the button on any of the door handles. The VAGCOM says no signal from antennas R135, R 136, R137, and R 138. That seems more likely there is something common to all of them that has failed in some way rather than 4 failed antennae. What module etc would be a likely suspect in this scenario...anyone have experience/knowledge about a situation like this ?
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Old Oct 24, 2024 | 04:41 AM
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Have you replaced the batteries in the key fob?

Is there any water intrusion into the cabin that’s pooling in the footwells? Particularly under carpet in the driver footwell/underneath the driver seat where the KESSY module sits.
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Old Oct 24, 2024 | 07:30 AM
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Good battery, no water ever in cabin.
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