Hi,
I have (as the least of my problems right now) a rattling backseat in my station wagon.
The individual parts of the split backrest have play in the mounting bracket in the middle (1H9 886 187 A).
Since it's not clear whether the bolts on the backrests are worn out or if the cheap stand (around 9 EUR) is the problem, I came up with a solution that addresses both issues and is also adjustable.
If there's interest in it, I'll document it; otherwise, I'll just work on it myself

.
I was thinking of a "tongue" *inside* the housing that pushes the pins in one direction, so that they can no longer vibrate within the housing.
m;