Hi all,

So my key fob has stopped unlocking my car (2015 A3 Sline).

Pressing the unlock button I can hear/feel the switch clicking, but there's no red light flash. Other buttons do work and produce a flash.

I've tried changing the battery twice, to two different makes and fresh out of the packet each time (Duracell and Energiser), but the behaviour remains exactly the same - other buttons flash and work, but the unlock button just clicks normally with no flash. I also tried resynchronising but since the unlock button doesn't appear to work, unsurprisingly there was no difference.

Any suggestions or is it definitely dealer replacement time, in which case, does anyone know the rough cost?

Thanks in advance,