BMW fuel pumps run at a very high pressure in order to properly supply the injectors with fuel. A failed pump will allow the car to crank, but wont kick over. Turner Motorsports carries Genuine BMW pumps that will have you back on the road in no time.
A tired fuel pump or a restricted fuel filter can cause dangerous lean spikes under full throttle putting your high strung M engine at risk. The BMW E46 M3 saddle tank relies heavily on both a primary pump and an auxiliary transfer pump to keep fuel moving efficiently across the tank arch during cornering.
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