Hello, have a smart city coupe bj:2001 with 70,000km at me the light engine was changed and afterwards I had problems with the switch, I could not insert a gear. I towed it to smart and the thought it is the clutch actuator(the engine started but did not insert a gear, there were three bars on the display.) the actuator was replaced and the jett started the no longer and man can not learn the actuator??? what can be the cause? smart my to me there s possibly the clutch is defective,can it be that the clutch is defective after a light engine replacement? please to rat,bin at the end with the nerves. mfg