N52K, N54 and N20 Engine
BMW technical service bulletin 160313 for 2009-2014 BMW Z4.
- Bulletin number
- 160313
- Component
- Fuel system, other: delivery
- Summary
- N52K, N54 and N20 Engine - Noise from Fuel Tank. The customer complains of a noise from the underside rear portion of the vehicle. When diagnosed the noise is coming from the fuel tank. CAUSE A manufacturing defect inside the electric fuel delivery unit (in-tank fuel pump) pressure limiting valve will result in a noise while driving. This defect will not lead to fuel pump failure or loss of power.
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