Sprinter | Years 2023–2026
This guide shows how to run the AdBlue Limit Counter Reset using the OBD module, step by step—from required prep to the exact ignition sequence. You’ll also learn how to read the LED status patterns, what to do if “Remaining Starts” doesn’t clear, and when to send the LOGFILE for support.
Table of Contents
AdBlue (DEF) Counter Reset
Prior to beginning the module installation, it is highly recommended that you carefully read through these instructions multiple times. Doing so will ensure a thorough understanding of the process and help you avoid any unnecessary mistakes.
Package Contents
Your package includes the following item:
- One module with the “Step1: Reset” microSD card already inserted
Preparing Your Vehicle for Installation
Before proceeding with the module installation, you must complete the following REQUIRED step:
Fill DEF to 100%. If your tank is around 70–90%, top it off to full. Do not overfill to the neck. If it’s overfilled, the ultrasonic level sensor can read incorrectly.
Installation Process
You will need to insert the module into the OBD2 port.
The module has a small opening with an LED indicator. After plugging the module into the OBD2 port, the LED will light up green and begin blinking.
You must monitor the LED during this process. Once the LED stops blinking (which can take 2–4 minutes, depending on the microSD card), the script installation will be complete. You can then remove the module and proceed with the next step.
LED Indicator Statuses
- Slow blink (once per second) = the module is functioning, this process will take 1–8 minutes = DO NOT REMOVE THE MODULE.
- Rapid blink (3 times per second) = the update is in progress, it takes approximately 7 seconds = DO NOT REMOVE THE MODULE.
- Two blinks followed by a pause = incompatible files on the microSD card = remove the module and send us the LOGFILE.
- Three slow blinks followed by a pause = microSD card not detected = remove the module, check if the microSD card is properly seated, or send us the LOGFILE.
- Three fast blinks followed by a pause = an error occurred during the script execution = remove the module and send us the LOGFILE.
- Four slow blinks = the module cannot retrieve vehicle information (either the ignition is OFF or the battery is drained).
If the LED flashes twice or three times and does not stop, the installation is unsuccessful. Remove the module and send the LOGFILE.LOG stored on the microSD card. You will need a computer and SD card reader to access the file. You can send it via email, WhatsApp, or another method.
Recommended Video Tutorials
Step-by-Step Instructions
- Turn on the ignition.
- Wait 30 seconds for the vehicle modules to wake up and initialize after ignition ON.
- Insert the module with the “Step1: Reset” microSD card into the OBD2 port.
- Monitor the LED and wait for it to stop blinking (this process takes 2–4 minutes).
- Remove the module from the OBD2 port once the LED stops blinking.
- Start the engine to confirm if the “Remaining Starts” error has been cleared. If the error persists, repeat “Step1: Reset” installation 1–3 more times. If the error is not cleared, send us the LOGFILE and do not proceed further.
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How to contact us, what to send for faster help, and how we troubleshoot issues remotely
Follow a simple checklist before you start: power, DEF level, PC tools, and radio/display notes.
