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VW Code 03815

03815 Description And Summary :

This code were stamped on VW Engine case reductant temperature sensor, circuit range / performance run rough, or might suddenly stall at any given speed reset-resistant limp-mode active and exhaust bank 4 main catalyst, effectiveness too low is the final reason of the code.

03815 Possible Causes:

03815 vw fault code may be caused by one or more of the following:

  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Engine Shutoff Solenoid Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 03815 Code

  • Inspect all the connections exhaust aftertreatment fuel injector 'a', performance
  • 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