VW Taos Transmission Slips: Failed Torque Converter Alert

I had a similar issue with my 2020 VW Tiguan that developed automatic transmission problems. I have some experience working on cars, mainly doing basic maintenance, but transmission issues are definitely beyond my skill level. The symptoms were nearly identical, slipping gears, grinding noises during shifts, and warning lights. The lock-up clutch was not engaging properly, causing jerky transitions between gears. Initially, I thought it might be a simple transmission fluid issue, but the problem was more serious. After taking it to a certified transmission specialist, diagnostic testing confirmed a converter fault. The torque converter had internal damage and needed complete replacement. The technician explained that the lock-up clutch inside the torque converter had failed, which was causing the erratic shifting behavior. The repair involved removing the automatic gearbox and replacing the entire torque converter assembly. Total cost was 2120€ including parts and labor. While expensive, it completely resolved the issues and the transmission has worked flawlessly since. Could you share more details about your Taos: Current mileage, When did symptoms first appear, Have you had any previous transmission work done, Are you experiencing any vibrations during acceleration This information would help determine if your situation matches what I experienced.

Thanks for your detailed insight. My Taos just hit 94543km and had its latest service two weeks ago. The symptoms started showing up about 300km after that service. The transmission behavior you described with your Tiguan matches exactly what I am experiencing now, particularly the lock-up clutch engagement issues and grinding during shifts. Your confirmation about the torque converter being the root cause is quite helpful, as I was suspecting the same when the automatic transmission started acting up. I have not had any previous transmission work done, and yes, I am now noticing slight vibrations during acceleration, especially when the converter tries to lock up. The repair cost you mentioned for the torque converter replacement gives me a good reference point for what I might be looking at. At least I know what to expect when I take it in.

Thanks for those additional details. The symptoms timeline right after service actually mirrors what happened with my Tiguan, the transmission problems became noticeable shortly after routine maintenance. The vibrations during acceleration you mentioned are a classic sign of torque converter failure, particularly when combined with the lock-up clutch issues. In my case, these vibrations got progressively worse until the transmission repair was completed. One thing I learned from my experience, continuing to drive with these symptoms risks causing additional transmission damage. The grinding sounds during shifts can indicate that metal particles from the failing converter are potentially circulating through the transmission system. Based on the matching symptoms and similar vehicle platform, I strongly suspect you are dealing with the same converter failure I experienced. The transmission repair shop explained that this particular design of torque converter can develop issues around the 90000-100000km mark, which aligns with your current mileage. The complete repair took about 3 days in my case, and included: Full transmission fluid flush, Torque converter replacement, New transmission filter, Computer system reset Having gone through this myself, I would recommend getting it checked soon before any engine surge or further transmission damage occurs.

Thanks for sharing your information. Your matching experience with the Tiguan has been really valuable in confirming my suspicions about the torque converter issue. Knowing that these problems can develop around my current mileage helps explain the timing. I will take your advice about not delaying the repair, as I definitely want to avoid causing additional transmission damage. The grinding noises during shifts have me particularly concerned about potential internal wear. I have already scheduled an appointment with a transmission specialist for next week. Given the matching symptoms and the fact that our vehicles share similar auto transmission systems, I am prepared for the possibility of needing a full torque converter replacement. The complete scope of work you outlined, including the transmission fluid flush, converter replacement, new filter and system reset, gives me a clear picture of what to expect. The 3-day timeframe also helps me plan accordingly. I appreciate you sharing the specific repair details and costs. This information will help ensure I get the right fix done and am not caught off guard by the repair expenses.