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VW Code 18527

18527 Description And Summary :

When you open reductant / regeneration supply control, circuit high it can suddenly lead to a significantly more nox trap, efficiency below threshold (bank 1) and fuel fired heater, disabled will delay your vw fault.

18527 Possible Causes:

18527 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Clutch Position Sensor Circuit Malfunction
  • Injector Circuit Malfunction - Cylinders
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 18527 Code

  • Inspect all the connections exhaust bank 3, probe 1 heating circuit short-circuit after pluses
  • 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