We may have found other answers which could help you.
Click here for Grohe Flush ToiletHow do I remove the fitting for the flush on my hidden cistern toilet?
GroheEAU2 Dual flush cistern. The large flush button keeps breaking off?
Short burst of water entering cistern ?
Have I been charged way to much for having a loo mended?
Grohe seals 14.11.30 4 DAL?
how do I change the bellows in the push button unit for the grohe cistern?