1998 A4 TDI Avant Last week one of my remotes was not unlocking the car without it being pressed three of four time. I suspected the battery, what with it now getting colder. Now I know this is my own fault but I took out one of the batteries to get the correct replacements. I guess it was out for four days. I've now replaced both batteries and yes you guessed it looks like the remote fob has lost its coding with the main unit. Does this mean I've got no choice but to visit a stealer and be charge half hours labour to have it recoded or can I do some magic myself?