Good morning With my Lupo 1.2TDi 3l the error message appears, Relay J509 defective. This relay is fixed in the control unit (6E0 909 703) for the steering aid. Unfortunately, this control unit is no longer available in Switzerland. The car is already 10 years old after all… Does anyone have information about the relay so that I can replace it (control unit is dismantled so far and the circuit board is removed) or does someone have a whole control unit at a fair price, which I can buy? As last option I see the expansion of the electric motor to make the steering slightly smoother, if I find no relay or control unit. Does anyone have experience with this step? Is there something special to consider? I am happy about every help and thank you already in advance. Best regards, Alex