I recently acquired a 2017 Mercedes GLC 250d x253 with 50,000 miles from the original owner. The vehicle produces a ticking noise, which I have documented, when the steering wheel is turned to the left. I am uncertain whether this occurs when we turn right. I inadvertently captured it on camera. The vehicle occasionally exhibits a sensation of traversing an obstruction in the road while reversing with full or partial steering lock, and forum discussions suggest this phenomenon may be referred to as "crabbing."? I enquired with the original owner, who stated that warranty repair was performed to address the "crabbing" issue; yet, the problem appears to persist. Is there any information on a ticking noise when rotating the steering wheel, as well as a clunking sensation when reversing and turning? I have encountered discussions indicating that the problem may pertain to the steering knuckle, and that Mercedes might provide coverage due to it being a manufacturing defect. I possess a Mercedes extended warranty. Thank you for your attention.