XC 90: track adjustment after full braking

already 2 weeks after I had taken over my new XC90 D5 (MY07), I noticed that after a strong braking process (brake assistant also grabbed) the steering wheel was slanted and the car pulled to the right. my tyre owner checked the tyres and adjusted the track. after 3 months, however, the same thing again: full braking, steering wheel no longer returns to the starting position (approx. 2 cm from the horizontal) and the car moves to the left. this time in the volvowerkstatt. resultat : ball joints are renewed i.e. exactly those parts that were changed a year ago in the frame of a recall call at the previous models and are allegedly no longer producing troubles at the my 07. have you made similar experiences ? has volvo the whole not in the grip ? my brake discs were changed after 20,000 km by the way, because the brake belaege were too hard. the grooves of an lp were harmless against the noise traces that the brake belaege on the had left slices…