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P00AF fault code: what it means

P00AF: Turbo actuator stuck. On TDI usually seized variable vanes or a vacuum / N75 problem.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. seized or stuck VNT vanes
  2. faulty boost control solenoid (N75)
  3. vacuum supply fault
  4. failed vacuum diaphragm / G581 sensor

P00AF by make

Audi

Turbo actuator stuck. On TDI usually seized variable vanes or a vacuum / N75 problem.

Usual causes: seized or stuck VNT vanes; faulty boost control solenoid (N75); vacuum supply fault; failed vacuum diaphragm / G581 sensor

Skoda

Turbo actuator stuck. On TDI usually seized variable vanes or a vacuum / N75 problem.

Usual causes: seized or stuck VNT vanes; faulty boost control solenoid (N75); vacuum supply fault; failed vacuum diaphragm / G581 sensor

Volkswagen

Turbo actuator stuck. On TDI usually seized variable vanes or a vacuum / N75 problem.

Usual causes: seized or stuck VNT vanes; faulty boost control solenoid (N75); vacuum supply fault; failed vacuum diaphragm / G581 sensor

Not sure what P00AF means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.