Hmmm, not sure about the fuel, but with the lights. I am going to assume you disconnected the battery? Turn the X on, turn steering wheel to the far left, then far right, then back to center. That will solve the light issue.

The sending units have a problem communicating to each other. There could be a tube that is clogged that is not sending fuel to the other side. If you turn the car on, motor not running, do you hear the pump whizzing on?

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2011 E70 50i M Sport