I have an issue with the heater selector direction switch on my MK6.5 Fiesta ST. I've removed the facia and the dials to look at the selector cable and it seems that there is a gap between the teeth of the cogs where the cable locates. In order to make these connect i've had to bend the selector cable out of position and tie it back with a cable tie as a temporary measure so the selector will work.

How should i go about repairing this properly ??

Any help would be grateful.

Thanks.