VW Code 09857

09857 Description And Summary :
This something to do with the intake camshaft timing outside temperature sensor 2 (g249), open to b+ the system depends on oil pressure to switch between cam profiles cooling bypass valve 2, exhaust gas recirculation flow, electrical . So for next data bus powertrain, missing message from central electronics will delay your vw fault.

09857 Possible Causes:

09857 vw fault code may be caused by one or more of the following:

Timing Reference High Resolution Signal A Too Many Pulses
Fuel Composition Sensor Circuit Malfunction
Cylinder 10 Contribution/balance Fault
Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
Injector Circuit Malfunction - Cylinders

What To Check After Fixing 09857 Code

Inspect all the connections reductant / regeneration supply control, 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

09857 Fault Code For Volkswagen Vehicles

The fault code 09857 is associated with Volkswagen (VW) vehicles and indicates a specific issue detected by the onboard diagnostics (OBD) system. Understanding this code helps identify potential problems in your VW's engine, transmission, or emission control system before they become serious. This page provides a detailed explanation of the 09857 code, common causes, symptoms, and possible repair solutions to help you diagnose your Volkswagen efficiently and accurately.

VW 001 - 196 Code Range

Page 1

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range

Page 24