Having problems with your 2005 BMW 3 Series ?
My 2005 325 CI gas guage reads empty but tank is full. I replaced the pump/sensor under the passenger rear seat but still have no reading. The pump/sensor showed signs of an electrical short on the wiring on the pump. The sensor on the drivers side rear looked fine. Fuel pump fuse is fine. Performed a diagnostic test of the on board computer (OBC) to check the sensor performance and received a code 3 meaning implausible unit. Any ideas are appreciated.
Empty all the time is a short to powerfull all the time is a faulty ground
Repair Help & Product Troubleshooting for 2005 BMW 3 Series
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