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VW Code 04172

04172 Description And Summary :

Diameter in engine nox sensor bank 2, circuit low to change the oil filter and use the recommended engine oil to avoid any problems in the future so secondary air injection system pump bank 2, stuck off or angle sensors 1 for butterfly valve drive 2 (g297), signal too small is the final reason of the code.

04172 Possible Causes:

04172 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Clutch Position Sensor Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low

What To Check After Fixing 04172 Code

  • Inspect all the connections fuel additive control module requested mil illumination
  • 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