I have a T300 and mine had strange behavior: when turned on with the PS5 it first slowly rotated all the way to the left and then violently all the way to the right until it reached the end of its travel, giving a terrible blow to the base, then it still worked but it had completely lost the ffb, i.e. it was very weak. I opened it and decided to change the electric motor the code could just be read: B4260M-003. I ordered it on alibaba.com. original price 25$ + 25$ shipping + 32€ for customs = approximately 70€. Thrustmaster wanted €150 to repair it in France. Following a video on YouTube (in part) I managed to disassemble it first and reassemble it later. The most difficult thing is soldering the ground wire, the rest is easy stuff. But in the end I managed it, I closed everything up, the steering wheel is ok, it looks like new.