How Many Liters of Brake Fluid Does the Tiguan Need?
2 Answers
Replacing the brake fluid for the Tiguan requires 1 liter. Below are the method for replacing brake fluid and the function of brake fluid: Method for replacing brake fluid: Turn off the vehicle, open the engine compartment cover, use a syringe to extract the fluid from the reservoir until the bottom is reached, then pour the new brake fluid into the reservoir. Monitor the brake fluid level; if it falls below the minimum mark, additional brake fluid needs to be added. Function of brake fluid: Brake fluid is the liquid medium in hydraulic braking systems that transmits braking pressure, used in vehicles equipped with hydraulic braking systems. Within the braking system, it serves as a force-transmitting medium. Because liquids cannot be compressed, the pressure output from the master cylinder is directly transmitted to the wheel cylinders through the brake fluid.
Last time I went to change the brake fluid for our family's Tiguan, I specifically asked the mechanic. He said the brake fluid replacement quantity is generally around 1 liter, but the actual amount depends on the replacement method used. The traditional manual method requires 1 liter, while using professional equipment may need about 1.2 liters reserved, as they need to ensure complete drainage of the old fluid. Repair shops often prepare extra fluid since some spillage is inevitable during operation. Brake fluid replacement can't be taken lightly - I watched the mechanic operate: first extracting old fluid from the reservoir, then bleeding each of the four wheels in turn, the whole process taking about half an hour. The key is using the correct specification - the Tiguan requires DOT4 standard, other specifications may affect braking performance. The mechanic also specifically reminded me that opened brake fluid easily absorbs moisture and deteriorates, so it's best to use it up in one go.
