BMW F30 - Horn stopped working - Any recommended garages?

[Redjack95]

Hi,
my horn has stopped working on a 335D and there is no error codes or warnings on dash.

Any recommended garages which could diagnose the issue? Im in Leeds but can travel if needed

Thanks

[Grant.C]

I guess a BMW specialist would be your best bet - I've not tried these myself yet, but The Workshop and BN Works have been recommended to me.