The main elements of the transmission include the clutch, gearbox, rear axle (main gear and differential), and cardan gear. The transmission may be faulty in the presence of the following signs: incomplete disengagement of the clutch, difficult engagement or spontaneous disengagement of gears in the gearbox, uneven engine operation, cardan drive shaft vibrations, slippage under load, heating, various knocking sounds and noises while driving. The transmission is a complex combination of elements that are critical to the vehicle. If you suspect that the transmission is faulty or you notice some signs of a malfunction, it is required to ensure the immediate diagnostics and troubleshooting, including repair or replacement of elements.