Hi all, I'm not sure what to do. I brought a secong hand A3 last year (2015) . It only had one key (working fine) - so last month I had a auto locksmith to come and supply me with a spare key. He managed to get one but had to recode both keys - using the official Audi database.Both keys started the engine. The problem is the remote central locking doesnt work on both keys. He done a full deep scan of the ECU - but no major errors showed- and done a reset.(and disconected the battery).but still no luck on the remote CL. He reckons its something to do with the ECU not communicating with the keys
