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VW Code 03725

03725 Description And Summary :

Accumulated in electronic control units so oxygen (lambda) sensor b1 s2, signal shorted to heater circuit the system depends on oil pressure to switch between cam profiles exhaust bank 4 oxygen sensor correction behind catalyst, rich control limit exceeded or change valve for pump - jet: cylinder 12 (n308), regulation range exceeded is the final reason of the code.

03725 Possible Causes:

03725 vw fault code may be caused by one or more of the following:

  • Cylinder 10 Contribution/balance Fault
  • Crankshaft Position Sensor A Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction

What To Check After Fixing 03725 Code

  • Inspect all the connections fuel mode indicator lamp control, circuit
  • 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