check engine light mb 350 ml bluetec

#1 · Sep 23, 2023, 12:16 pm

Hi All,

I have a 2011 mb 350 ml blue tec that the check engine light come on.

I have a ucan !! I know it a mass air problem

How do i reset the dash light.

Thanks for the help.

Rich

#2 · Sep 26, 2023, 9:27 am

Thank you for reaching out to us regarding the Check Engine Light on your 2011 Mercedes-Benz ML 350 BlueTEC. To address the issue you've indicated as a Mass Air Flow problem, here's a step-by-step guide on how to use your YOUCANIC UCAN-II scanner to read and clear the fault codes:

Diagnose the Issue:
- Ensure your vehicle is in Park (automatic) or Neutral (manual), with the ignition switched to ON.
- Connect your YOUCANIC UCAN-II scanner to the OBD-II port of your vehicle, typically located under the dashboard near the steering column.
- Follow the on-screen prompts on your scanner to select your vehicle make, model, and engine type.
- Navigate to the “Read Codes” function and take note of any displayed fault codes or take a screenshot if your scanner has this feature.
Post the Codes:
- Please share the fault code(s) or screenshot with us via email or our support platform. The specific code(s) will provide detailed information on the exact nature of the issue.
Address the Issue:
- Before resetting the Check Engine Light, it's essential to address the detected issue. If it's indeed a Mass Air Flow sensor problem, you may need to clean or replace the sensor as required.
Clear the Codes:
- Once the issue has been resolved, reconnect your UCAN-II scanner, and navigate to the “Erase Codes” or "Clear Codes" function to reset the Check Engine Light. Please ensure the fault has been fixed; otherwise, the light will reappear shortly after being reset.

Please feel free to reach out to us if you encounter any difficulties during this process or have any further questions. Our technical support team is here to assist you in ensuring your Mercedes ML 350 BlueTEC is functioning correctly.