After poking around in my Mini today, I found that pulling the heater control cable brings the entire outer barrel with it. I prized back the fascia (second photo) to find a bracket which I assume the outer barrel is supposed to be attached to, but it is not obvious how, with no thread or nuts in sight.
The silver bolt looking part doesn't appear to actually be threaded and just has ridges around it.
How do I go about fixing this?
(1989 Mini 30, with added walnut dash)
As always thanks for your infinite wisdom :)













