Anybody experience issues with their steering?

I have 4000km on my G and the place that changed over my winter wheels to summer wheels claimed there is an issue.

Truck is now at dealer and waiting on full replacement of steering system.
Been over 2 weeks waiting on parts from germany...

 

Did you (or anyone else) engage the differential locks on a hard surface like a paved road?

 

never used the locks to date.

Dealer has ordered new steering box and associated parts...