happened to my 13 after 1000k ish dealer took care of it no questions, one guy i ride with rode damn near 2500k with one a arm like that before taking it in and sweet talked the dealer into exchanging it free of charge... if mine go again i'll be swaping out to aftermarket ones...i would go to your dealer and see what they can do...
Don't even waste your time replacing those a arms with another stock one, you can replace both lowers for almost the same price as a single stock arm and then they are welded and can't come unglued.
Who sells after market a arms, wondering if they are as lightweight as the Carbon Fiber ones.
what dealer did you use? i broke a bolt in my suspension this weekend mine tried to say i was jumping it. should be warranty
what dealer did you use? i broke a bolt in my suspension this weekend mine tried to say i was jumping it. should be warranty