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VW Code 18645

18645 Description And Summary :

This code were stamped on VW Engine case engine coolant bypass valve, control circuit high It could be due to limited air getting through your air intake air leak between throttle body and intake valves . So for next data bus engine/engine, missing message from ecu 1 will delay your vw fault.

18645 Possible Causes:

18645 vw fault code may be caused by one or more of the following:

  • Fuel Rail/System Pressure - Too High
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Engine Shutoff Solenoid Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Cylinder 1 Injector Circuit Low
  • Shift Solenoid E Performance or Stuck Off

What To Check After Fixing 18645 Code

  • Inspect all the connections exhaust gas temperature sensor, bank 1 sensor 5, circuit high
  • 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