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Audi TSB #132820350732
2013 Audi A4
TSB Document:
Affected Component: FUEL SYSTEM, GASOLINE
- Summary
- After the engine is switched off, the fuel system creates a natural vacuum as the fuel in the fuel tank cools off. If the natural vacuum leak detection (NVLD) system cannot detect this natural vacuum during the system self-test, the DTC will be stored in the ECM.
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