722.433 gearbox

E280 w124 with a 722.433 gearbox  has no gears forward or reverse the oil level is correct if put to R position the reverse lights come on 

If I jack the back up an turn the wheel  it start to turn 

check  in front by the oil cooler there is oil flow there 

have change the dogbone in the b2 piston after the car was standing for 3 years then she was driving nice no problems with gearshift till today no more gears

Thanks