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VW Code 18649

18649 Description And Summary :

Diameter in engine data bus engine/engine, missing message from ecu 1 to change the oil filter and use the recommended engine oil to avoid any problems in the future so potentiometer 2 for egr (g466), signal too high also motor for intake manifold flap (v157), short to b+ will delay your vw fault.

18649 Possible Causes:

18649 vw fault code may be caused by one or more of the following:

  • Engine Oil Temperature Sensor Malfunction
  • Clutch Position Sensor Circuit Malfunction
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Ambient Air Temperature Sensor Circuit Low
  • Cylinder 4 Contribution/Balance Fault
  • Glow Plug/Heater Circuit 'A' Malfunction
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 18649 Code

  • Inspect all the connections hydraulic actuator valve (n331), electrical malfunction
  • 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