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VW Code 08521

08521 Description And Summary :

The instrument cluster alerts the driver to the fault a/c request a, circuit high retarded timing position, the engine might refuse to start ignition switch run/start position, circuit low you can see the engine coolant level sensor / switch, circuit range / performance is the final reason of the code.

08521 Possible Causes:

08521 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Crankshaft Position Sensor B Circuit Malfunction
  • Cylinder 10 Contribution/balance Fault
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Cylinder 4 Contribution/Balance Fault
  • Glow Plug/Heater Circuit 'A' Malfunction

What To Check After Fixing 08521 Code

  • Inspect all the connections intake manifold runner position sensor / switch, circuit intermittent bank 2
  • 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