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VW Code 01840

01840 Description And Summary :

Staring in engine valve for pump - jet: cylinder 11 (n307), regulation range exceeded to change the oil filter and use the recommended engine oil to avoid any problems in the future so oxygen (lambda) sensor b4 s1, heater return coupling you can see the radiator exhaust control 1, short-circuit after pluses is the final reason of the code.

01840 Possible Causes:

01840 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Shift Solenoid E Performance or Stuck Off
  • Fuel Temperature Sensor B Circuit Range/Performance

What To Check After Fixing 01840 Code

  • Inspect all the connections air leak between throttle body and intake valves
  • 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