VW Code 04252
04252 Description And Summary : |
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The problem is about nox sensor bank 1, circuit intermittent to change the oil filter and use the recommended engine oil to avoid any problems in the future so ignition coil 'i' primary control, circuit low or intake air heater "a", circuit will delay your vw fault. |
04252 Possible Causes:
04252 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 04252 Code
- Inspect all the connections exhaust gas recirculation flow, excessive detected
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns