Why Does the Volkswagen Dry Dual-Clutch Make a Clanging Noise in 1st and 2nd Gears?
1 Answers
Because the dry dual-clutch transmission is not immersed in fluid internally, it involves mechanical collisions and friction. When passing over speed bumps, there may be metal clanging sounds. If abnormal noises occur, it is best to conduct a thorough inspection to rule out whether it is a transmission fault. If computer diagnostics and test driving exclude issues with the transmission itself, then it can be confirmed that the problem is caused by uneven surfaces due to burning spots on the clutch plates. Below are common transmission faults: 1. Oil Leakage: Oil seeping from the transmission housing or oil pan can be due to aging seals causing poor sealing or manufacturing defects leading to porosity in the housing. 2. Engine Stalling When Engaging Gear: Stalling when shifting into D or R may be caused by a damaged lock-up solenoid valve or a stuck lock-up control valve. 3. Locked Gear: Incorrect input or output signals from the transmission, or issues with components or wiring, can cause this. Sometimes, communication problems between the transmission computer and other system computers can also lead to this. 4. No Response When Engaging Gear: The vehicle does not move after shifting into D or R and releasing the brake. This is often due to damage to the input shaft or reverse clutch, or failure of the D/R brake. 5. Abnormal Noises: Unusual sounds from the transmission area while driving are usually caused by worn parts or improper installation of the transmission.
