After the engine is switched off, the fuel system creates a natural vacuum as the fuel in the fuel tank...
Audi technical service bulletin 132820350732 for 2013-2014 Audi A4, 2012-2014 Audi A6 and 2013-2014 Audi Q5 and others.
- Bulletin number
- 132820350732
- 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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