What are the causes of transmission failure in the 2017 Passat?
2 Answers
17 Passat transmission failures generally include the following: 1. Difficulty in shifting gears and jerking sensation: The relevant gears and other components inside the transmission do not receive sufficient lubrication, and a durable lubricating film cannot be formed, preventing the components from operating smoothly. 2. Automatic transmission jerking and impact sensation: Impurities appear in the transmission, causing blockages in the valve body, which hinders its smooth up-and-down movement and disrupts the sequential regulation of oil pressure, leading to jerking and shifting impact issues. 3. Transmission noise and loud sounds: The transmission is dirty, and components such as bearings and gears show signs of wear or severe wear, or the gear sides are damaged. 4. Overheating transmission: The transmission frequently operates under overload conditions, making it unable to effectively control temperature.
There are quite a few reasons why the transmission in the 2017 Passat can develop issues, and I've encountered this situation many times. It's mainly related to its DSG dual-clutch system, especially the 7-speed version. The clutch plates are prone to wear, leading to slipping or shaking. Sometimes it's due to insufficient or contaminated transmission fluid, which affects lubrication and cooling. Additionally, the control module software might have bugs, making the faults more noticeable during frequent gear shifts or in traffic jams, causing jerking or failure to engage gears. I recommend not pushing through it—first check the transmission fluid condition (dirty or low fluid is a big issue) and promptly run a computer diagnostic. Driving habits are also crucial; constant hard acceleration can overheat the system and shorten its lifespan. Regular maintenance can prevent many problems, as replacing a transmission isn’t cheap.
