Audi A4 B7 - a4 ccu re sync

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Tue 1 Mar 2016 10:13
Audi A4 B7 - a4 ccu re sync - Hippi

Car flooded under passenger seat, Have dryed out car and ccu, all back in place now. electric windows, interior light and central locking will work, central locking only by key tho not with fob. Engine will turn over but not start. Do i need to do a re sync with key and ccu or could it be something else - PLEASE HELP

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Tue 1 Mar 2016 18:03
Audi A4 B7 - a4 ccu re sync - elekie&a/c doctor

I would say something else.have you tried unplugging the ccu,just incase there is some corrupt info.Re-syncing the keys only restores remote locking function,will not cause the car to not start.Sometimes it is possible to re-sync the keys manually,but you need 2 keys to do this.

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Sat 5 Mar 2016 19:08
Audi A4 B7 - a4 ccu re sync - Steveieb
Can you please let me know where to find the ecru and what other precautions you need to take before unplugging it elegies doctor ?
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Tue 8 Mar 2016 11:12
Audi A4 B7 - a4 ccu re sync - Steveieb

Grateful for a response Elekie Doc

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Tue 8 Mar 2016 17:09
Audi A4 B7 - a4 ccu re sync - elekie&a/c doctor

The comfort/convenience module sits in a plastic housing under the carpet/underlay ,passenger footwell.Very common for it to get flooded by rain water due to the bulkhead drains ,under battery,getting blocked.Easy to disconnect ,usually 3 or 4 multi plugs,with no issues.

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