MG 3 suddenly decelerated at high speed.

MG MG3 is equipped with a 5-speed automatic manual transmission. It's your own! This problem is caused by gearbox machinery after long-term maintenance experience of MG 3 during driving. After the downshift, the car will suddenly slow down and the engine will rumble. This is the performance that power cannot be transmitted. The engine generates electricity for the gearbox, and if there is something wrong with the gearbox, it can't drive normally.