What causes the abnormal noise in Volkswagen transmissions?
4 Answers
Possible causes include internal friction plate failure, abnormal transmission oil pressure, or transmission valve body failure. Below are detailed explanations: 1. Use original oil: When replacing transmission oil, it is important to use the original oil, as not all the old oil can be completely drained during the change. Mixing different brands of transmission oil may cause a reaction with the residual oil, damaging the transmission. 2. Precautions: During normal use, transmission oil can deteriorate and evaporate quickly under high-speed and high-temperature conditions, failing to provide protection and instead accelerating wear on mechanical parts and damaging the transmission. Additionally, transmission oil should be replaced promptly, as prolonged use without replacement can lead to weak starts when the car is cold.
As a Volkswagen owner, I think transmission noise is quite common, usually hearing clicking or humming sounds during acceleration or gear shifting. Possible causes include old or insufficient transmission oil, a clogged oil filter leading to inadequate lubrication, and gear friction causing noise. Or internal components like gears may be worn out, Volkswagen's DSG transmissions are prone to such issues, especially with clutch plates or synchronizer failures. There could also be bearing damage causing the noise. My experience is to first check the fluid, pull out the dipstick to see if the color is black or has impurities, and if serious, try changing the oil. Sometimes simple maintenance can solve the problem, but don't delay, as prolonged noise may lead to transmission failure, and repairs costing thousands are considered cheap. It's recommended to go to a professional 4S shop for a check when hearing noises, safe driving is the most important, and regular transmission oil maintenance can prevent problems.
I've helped repair many cars, and there are quite a few reasons for transmission noise. In Volkswagen models, common causes include oil pump issues leading to noise, or loose shifting mechanisms causing gear collisions during operation. For automatic transmissions like DSG, clutch wear can also result in abnormal sounds. The inspection is straightforward: first, check if the oil level is at the standard mark and whether the oil is cloudy or contaminated—replace it if dirty. If the noise persists after an oil change, it might be due to aging parts or bearing failure. Don't attempt DIY fixes; Volkswagen transmissions are highly precise, and improper handling can worsen the damage. It's best to seek professional repair promptly to prevent major failures. Pay attention to whether the noise is accompanied by jerking while driving. If you feel acceleration issues, be even more cautious. Regular maintenance is key—get it checked every few tens of thousands of kilometers.
Having driven Volkswagen for many years, there are only a few common causes for transmission noise. Insufficient or dirty oil is the most frequent issue, leading to poor lubrication and gear noise. Worn gears can also produce a clunking sound. Checking the fluid is the first step. Volkswagen's automatic transmissions, especially the DSG, are prone to problems. If you hear any noise, get it checked as soon as possible to avoid safety risks. Regular maintenance is crucial, and changing the oil can prevent issues.
