AdBlue warnings in your Volkswagen can be frustrating and lead to limited driving range. This guide demonstrates how to perform an Autel Adblue Reset using the Autel MaxiCOM Ultra Lite diagnostic tool on a VW Sharan. This process can potentially help resolve AdBlue system errors and restore full functionality.
Before attempting a reset, ensure your AdBlue tank is filled to the appropriate level. The AdBlue tank is typically located behind a flap on the rear passenger side door. Topping off the AdBlue often resolves the warning. However, if the vehicle has entered a limited driving mode due to the AdBlue system error, a reset with a diagnostic tool like the Autel Ultra Lite will likely be necessary.
If the warning persists after refilling, the Autel MaxiCOM Ultra Lite can be used to perform the reset. Here’s a step-by-step guide:
Performing an Autel AdBlue Reset with Ultra Lite
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Diagnose: Connect the Autel Ultra Lite to the vehicle’s OBD-II port and perform a full system diagnosis. This step helps identify any underlying issues beyond the AdBlue warning.
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Access Engine Module: Navigate to the Engine Control Module within the Autel Ultra Lite software.
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Basic Settings: Select “Basic Settings” within the Engine Control Module menu.
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Reset Procedures: Within Basic Settings, you’ll find several reset options related to the AdBlue system. Perform the following resets in this order:
- Reset SCR Lock: This clears any existing locks on the Selective Catalytic Reduction (SCR) system.
- Reset Learned Values: Reset the learned values of the AdBlue quantity metering unit and pressure control valve.
- Reset Tank Level Detection: Reset the SCR tank level detection to ensure accurate readings after refilling.
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Additional Resets (Optional): The Autel Ultra Lite may offer other helpful resets such as the “Check of SCR Efficiency.” Consult the device’s user manual for specific guidance on these optional procedures.
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Clear Trouble Codes: After performing the AdBlue resets, navigate back to the main menu and clear all trouble codes. This ensures any stored fault codes related to the AdBlue system are erased.
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Verify the Reset: Turn the ignition off and then back on. Check the dashboard to confirm the AdBlue warning light is no longer illuminated.
Conclusion
The Autel MaxiCOM Ultra Lite offers a straightforward method for performing an AdBlue reset on VW vehicles. Following these steps can help clear system warnings and restore full driving functionality. Remember to consult your vehicle’s owner’s manual and the Autel Ultra Lite user guide for specific instructions and safety precautions. Always prioritize filling the AdBlue tank to the recommended level before attempting a reset. While this guide focuses on the VW Sharan, the general principles may apply to other VW models equipped with AdBlue systems. However, always confirm the specific procedures for your vehicle.
