How to open a Grohe Adagio cistern?

Have I been charged way to much for having a loo mended?

how do I change the bellows in the push button unit for the grohe cistern?

How do I remove the fitting for the flush on my hidden cistern toilet?

grohe toilet cistern leasks ?

The push button on my Grohe Adagio stopped flushing ?

Grohe 42181 toilet filler valve leaking?

Replacement of bellows in Grohe air button?

how to take unit apart?

Grohe push button toilet attached to saniflow ?

Short burst of water entering cistern ?

Slow fill of toilet cistern?

Grohe seals 14.11.30 4 DAL?