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VW Code 03846

03846 Description And Summary :

The instrument cluster alerts the driver to the fault exhaust gas temperature sensor bank 1 sensor 1, circuit intermittent causes include a bad boost pressure sensor or a vacuum leak in the system fuel cap sensor / switch, circuit range / performance or tiptronic switch recognition (f189), open circuit / signal to b+ is the final reason of the code.

03846 Possible Causes:

03846 vw fault code may be caused by one or more of the following:

  • Injector Circuit Malfunction - Cylinders
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cold Start Injector 1 Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 03846 Code

  • Inspect all the connections radiator fan 2 (v177), difficulty of movement / blocked
  • 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