The main task of the fuel pump relay in your car is to start it efficiently. When you turn the key in the ignition, the relay is activating the fuel pump by pressurizing the fuel system. If you press the gas pedal, the fuel pump relay is responding by supplying the required voltage to the fuel pump. When the fuel pump relay is damaged in Audi, you will notice the fuel pump is failed intermittently. Go through the video to know about the signs of a bad fuel pump relay in the Audi Q5.
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