If your car doesn't start or picks up speed slowly, you notice jerking when shifting from neutral or unusual noise while driving, your continuously variable transmission (CVT) may be defective. During the diagnostics, the experts will check the operation of the speedometer, the condition of the transmission oil, and the presence of mechanical damage of CVT components. In the course of computer diagnostics, the condition of the electronics or mechanical elements of the CVT box is assessed. If no damage is found, the device is disassembled and the entire unit is inspected.