Probably not that then. The contacts are in this post that Klawit put up at the time:
www.autotitre.com
View attachment 30276
View attachment 30277
The circled area.
"
finally tore a little the slats in 1 which are at the origin of the
problem
since after a while they no longer make contact, which deactivates the regulator.
Clean switch 2
"
It was a common fault that CC would fail. As I posted up at the time I took the garage mechanic out with me, we did several roundabouts up the road, all OK then it failed. They replaced the unit... then it was OK for a bit.
Klawit says in his post in German at the time dealers were reconditioning switches using this cleaning method. Apparently you can take the switch apart in situ, undoing just one screw. I never tried but others did. I just stopped using it. My warranty ran out on the car so I wasnt prepared to pay a fancy price for a dealer to repair it, the first repair was done under warranty. Decided too much hassle to take the stick apart myself but other did.... probably just poorly held together.
It could be that even on a new unit, or reconditioned one if it has not been cleaned.