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VW Code 00520

00520 Description And Summary :

Staring in engine data bus powertrain, implausible message of the airbag control module causes include a bad boost pressure sensor or a vacuum leak in the system secondary air injection system air flow/pressure sensor bank 2, circuit low or change air flow restriction / air leak between air filter and maf is the final reason of the code.

00520 Possible Causes:

00520 vw fault code may be caused by one or more of the following:

  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Reverse Input Circuit
  • Clutch Position Sensor Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 00520 Code

  • Inspect all the connections motor for intake manifold flap (v157), short to b+
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range