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Volkswagen Lavida Dual Clutch Transmission Failure Issues?

1 Answers

MacHazel

07/30/25 9:13am

1. Volkswagen Lavida Transmission Failure, Gear Shifting Jerk While Driving: The repair process for the seven-speed dry dual-clutch transmission OAM installed in the Volkswagen Lavida revealed gear shifting jerk during driving. This phenomenon occurs under normal driving conditions and may be caused by transmission failure. 2. Volkswagen Lavida Transmission Failure Analysis and Repair Process: Initial inspection by the repair technician found no fault codes. The gear shifting jerk issue in the Lavida is a common symptom when faults occur in the clutch or the mechatronic unit. Therefore, the transmission was removed for a comprehensive inspection. After removal, the technician discovered excessive clutch clearance and severe wear, as well as significant wear in the electromagnetic valves and valve channels within the mechatronic unit. After repairing the mechatronic unit and replacing it with new components, the gear shifting jerk issue in the Volkswagen Lavida was resolved. The process involved disconnecting transmission-related parts, lifting the vehicle, and using a hoist to remove the engine and transmission, preparing to take out the dual-clutch transmission. Detailed inspection of the Lavida's transmission mechatronic unit revealed severe wear in the electromagnetic valves and valve channels, directly related to long-term failure to replace the transmission fluid. The primary function of the mechatronic unit is to control the transmission's hydraulic pressure for gear shifting. When the mechatronic unit fails, the vehicle may experience symptoms such as a flashing wrench light and poor gear shifting. The main causes of mechatronic unit failure are degraded or insufficient transmission fluid.

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