Have a nice day everyone :) I think this al4 gearbox has started to disturb the gears when switching from 2nd gear to 3rd gear, the fault light is not on the vehicle, but I think I'm happy if you can inform me how much transmission oil and solenoid change explodes. I have one more question I checked the hydraulic oil tank, there is oil, but it seems to have lost its feature. If I change the hydraulic oil, do I have a little bit of steering on the steering wheel or do I need to change it periodically. Waiting for your answers, good luck to everyone, good luck :)