How often should the automatic transmission fluid be replaced in a 2017 Passat?

[DeLucille]

The automatic transmission fluid in a 2017 Passat is generally recommended to be replaced every two years or approximately 40,000 kilometers. Signs that indicate the need for transmission fluid replacement include body shaking, gear shifting hesitation, transmission overheating warning on the dashboard, engine stalling, and unusual noises. Hazards of not replacing transmission fluid for a long time: Damage to the gear shift control mechanism of the transmission; abnormal wear of gears and clutch plates inside the transmission; affecting the normal operation of the transmission, leading to damage of the transmission valve body. The methods for replacing transmission fluid are as follows: Unscrew the drain plug at the bottom of the transmission to drain the old fluid before refilling. Remove the transmission oil pan directly to drain and refill the fluid: this method is more thorough than the previous one, as it removes impurities from the bottom of the oil pan. Use a circulation machine to replace the automatic transmission fluid: dynamic fluid replacement with an intelligent circulation machine can filter and clean sludge and impurities inside the automatic transmission.