Where is the fuel pump located on a BMW 520?
1 Answers
The fuel pump of a BMW 520 is located inside the fuel tank beneath the rear seats. Symptoms of a damaged fuel pump include: 1. Complete failure of the fuel pump, preventing fuel delivery and causing the fuel supply system to collapse, making the vehicle unable to start. 2. Damage to the fuel pump's check valve, resulting in no residual pressure and fuel pressure failing to meet the specified value, leading to reduced atomization, difficulty starting, and requiring multiple ignition attempts. 3. Wear of the centrifugal pump impeller, causing reduced fuel supply pressure, absence of the fuel pump's operating sound, slow fuel delivery, weak acceleration, and abnormal noises while driving. 4. Mechanical faults such as rotor jamming, which increase the fuel pump's operating current, potentially damaging the relay or fuse. 5. Illumination of the engine warning light and abnormal engine vibration. Function of the fuel pump: It draws gasoline from the fuel tank and delivers it through the fuel lines and fuel filter to the carburetor's float chamber. Thanks to the fuel pump, the fuel tank can be positioned at the rear of the vehicle, away from and below the engine.