Steering gearbox Total damage after 75,000 km

I just had my V70 D5 at the dealer’s to have the steering head replaced on one side. When the new track rod was to be installed, I was called to say that the steering gear was completely in a bucket and that it was surprising that I could still drive with it at all. It could have been any time that the gear was completely eating and I could not steer at all. On site, I was shown that the hydraulic stamp in a terrifyingly large measure free in After the vehicle is 3.5 years old, there is no official culanz anymore from Volvo and the request for culanz is 50% at the dealer’s expense. This can therefore be considered whether he invests the money for the culanz in the hope that I will order the next vehicle from him. Quite by the way, this is an outrageous thing for Volvo towards its dealers, because what can the dealer do to ensure that at the factory at that time a flawed part of the vehicle is moved in every direction? before I start the fight with Volvo Germany I would like to know who else in the big community of the V70 drivers in this forum had problems with the steering gear. Thank you very much.