Rear Torsion problem

I took my car to an authorized service center due to a metal noise coming from the rear. The expert diagnosed the rear torsion bar and said it needed to be replaced. However, they said they would charge a fee for the replacement. My research revealed that similar problems have occurred in 2014 and 2015 model year 308 cars, and that the torsion bar replacement was free of charge for this defect, which was determined to be a manufacturing defect. Has anyone experienced this before and had it replaced? If so, could you please let me know? Thank you.

I recommend calling Peugeot headquarters and inquiring about this issue. If you've had this happen before, I suggest you request a free replacement and have it inspected at another service center.

I contacted Peugeot Turkey Customer Service, and the response I received was, "Free replacements are not possible because the warranty has expired." When I requested this response in writing, they refused. However, I believe that for such "defective manufacturing/faulty" parts, the warranty period or mileage of the car shouldn't matter. Furthermore, forums mention that this defect was a chronic problem in 2014 and 2015 production models, and that free replacements were offered.