Squeaky sounds rear behind solved.

[Hanszl2001]

I went back to the dealer due to squeaky sounds from behind after the so called Shock Oil Treatment
In which case I still suspected the rear shock absorbers.
In my case it wasn't the problem at all.
Fortunate it can be solved by adjusting the tailgate lock assy + striker, both rear door lock strikers  and the rear seats strikers
It worked fine for me.

[nowster]

I find that with squeaky sounds from my rear behind, avoiding beans helps.