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VW Code 18850

18850 Description And Summary :

Staring in engine fuel supply heater, control circuit high mechanic will need to check all electrical connections in the camshaft sensor transmission control unit relay, short to b+ and wait then data-bus powertrain, hardware defective will delay your vw fault.

18850 Possible Causes:

18850 vw fault code may be caused by one or more of the following:

  • Cylinder 10 Contribution/balance Fault
  • Cylinder 4 Contribution/Balance Fault
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Injector Circuit Malfunction - Cylinders

What To Check After Fixing 18850 Code

  • Inspect all the connections data bus powertrain, implausible message of the control module central electrics
  • 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