Every half decent tool kit should include a Vernier gauge, but just as useful is a BluTack-ometer.
The steering wheel on my (otherwise) trusty Citroën Berlingo became loose, but I've been too busy to sort it. Just prior to picking up my mother-in-law from the airport this morning seemed like a good time. Modern vehicles are so over designed, even the simplest of service tasks can be very complicated. Add the possibility of an exploding airbag into the equation and things could become quite comedical. But not more so than a self-detaching a steering wheel mid-corner. A quick Google informed me of slightly more professional people who had broken noses on the job, so my woe-ometer was already red lining before I started.
Step 1) disconnect battery. 2) wait twenty minutes (apparently air bags can hold a charge for several minutes). 3) insert screwdriver into small hole (three of) on reverse of steering wheel housing to flex back sprung wire retaining clip of airbag.
So take a lump of BluTac. Kneed it until soft and then press firmly into the Torx bolt centre to make a male impression.
I needed a T50 socket. With a dribble of Loctite 243 on the thread of the removed bolt (which was frighteningly only finger-tight), I then torqued it back up on the splines.
Mother-in-law was not impressed with my dirty dungarees. BP