My V reg 1.9 tdi alhambra's power steering belt needed changing,which my friend has done. He showed me the toothed nut that grips onto the adjusting plate. it was really worn but filed it a little for more grip. Anyway what is the name of this nut?? Explaned to seat dealership and they dont know what i mean. Its a nut with loads of teeth on it. :unsure: