How many liters of transmission fluid should be added when replacing the transmission oil for a Mercedes-Benz C260?
2 Answers
For a Mercedes-Benz C260, if the transmission fluid is replaced manually (gravity drain), it requires four to six liters; if using an oil changer, approximately nine to twelve liters are needed. The replacement intervals vary for different models. Below are the recommended replacement intervals for transmission fluid: Manual Transmission: Manual transmission fluid is generally recommended to be replaced every three years or approximately 100,000 kilometers. Automatic Transmission: Automatic transmission fluid is generally recommended to be replaced every two years or approximately 40,000 kilometers. Continuously Variable Transmission (CVT): CVT fluid is generally recommended to be replaced every two years or approximately 60,000 kilometers. The methods for replacing transmission fluid are as follows: Unscrew the drain plug at the bottom of the transmission to drain the old fluid, then refill with new fluid. 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 accumulated at the bottom of the oil pan. Use a circulation machine to replace automatic transmission fluid: A smart circulation machine performs dynamic oil replacement, filtering and cleaning sludge and impurities from the automatic transmission.
According to previous research, changing the transmission fluid for a Mercedes-Benz C260 depends on the year and transmission model. Common types are the 7G-Tronic or 9G-Tronic. The 7-speed typically requires about 7 liters, while the 9-speed uses slightly less, usually between 5.5 to 6.5 liters. During an actual fluid change, the old fluid is drained first, but residual fluid remains in the internal passages and torque converter, so a flush machine is needed for a thorough replacement. Gravity draining usually only replaces about half of the fluid, which is why many professional shops recommend a flush—it's more efficient and thorough. I suggest checking your car’s year and corresponding transmission type before getting it changed.
