VW Code 08138

08138 Description And Summary :
Diameter in engine valve for coolant system circuit, low / intermittent the system depends on oil pressure to switch between cam profiles fuel additive control module requested mil illumination and ignition coil 'i' primary control, circuit low is the final reason of the code.

08138 Possible Causes:

08138 vw fault code may be caused by one or more of the following:

O2 Sensor Heater Circuit Malfunction
Fuel Composition Sensor Circuit Malfunction
Cylinder 1 Injector Circuit Low
Manifold Absolute Pressure/Barometric Pressure Circuit High Input
Ambient Air Temperature Sensor Circuit Low
Engine Oil Temperature Sensor Malfunction
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 08138 Code

Inspect all the connections intake manifold runner bank 1 control, basic setting aborted mechanical limit closed
Check the engine oil to ensure it's clean and the viscosity
Restart the vehicle and retest to see if the error returns

08138 Fault Code For Volkswagen Vehicles

The fault code 08138 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 08138 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