Where is the oil pressure regulator located in the Audi Q7?

1 Answers
EverettLee
07/30/25 9:01am
The fuel pressure regulator valve of the Audi Q7 is located inside the fuel filter, next to the right rear wheel. It is easier to find when the car is lifted. Working principle of the pressure regulator valve: The oil pressure is coordinated by the spring and the vacuum in the chamber. When the oil pressure exceeds the standard value, the high-pressure fuel will push the diaphragm upward, opening the ball valve, and the excess fuel will flow back to the fuel tank through the return pipe. Function of the pressure regulator valve: There is a diaphragm inside the pressure regulator, which controls the opening and closing of the pressure valve. When the oil pressure is below a certain value, the pressure valve closes, and the oil pump pressurizes to increase the pressure in the oil circuit. When the pressure exceeds the specified value, the diaphragm opens, and the over-pressurized fuel flows back to the fuel tank through the return pipe, serving as a pressure relief function.
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