Package Deal
This guide explains how to use the OBD module on the 2007–2008 Mercedes-Benz ML320 and GL320 with the 3.0L OM642 engine.
These early W164 ML320 and X164 GL320 models do not have the DEF system, so the installation requires only the one-step module procedure.
Please follow the steps carefully and use the correct microSD card sequence.
Before Starting
- Before using the OBD module, please read the full instructions from start to finish.
- Make sure the vehicle battery is fully charged.
If possible, start the engine and let it run for about 30 minutes before installation. This helps recharge and stabilize the battery.
Do not begin the software installation with a weak battery. A weak battery may interrupt the installation process and cause errors.
You can connect a battery charger to recharge the battery, but make sure to disconnect it before starting the software installation. - Disconnect all aftermarket devices connected to the CAN bus, such as diagnostic tools, trackers, tuning modules, alarm systems, or other third-party electronic devices.
Package Contents
Your package includes:
- OBD module
- microSD card S1FULL or S1SEMI, usually already installed in the module
- microSD card marked FACTORY
The Factory microSD card should only be used if we instruct you to restart the installation from the beginning. Do not use the Factory card unless we specifically advise you to do so.
How to Turn the Ignition ON
Turn the ignition ON, but do not start the engine.
To turn the ignition ON:
- Insert the key into the ignition.
- Turn the key to the second position.
- The dashboard warning lights should turn on.
Do not start the engine during the OBD module procedure.
OBD Module LED Indicator
The OBD module has a small LED indicator.
After plugging the module into the OBD2 port, the LED will turn on and start blinking.
You must watch the LED during the procedure.
Do not remove the module while the LED is blinking normally.
LED Status Meaning
-
Slow blink, about once per second
The module is working normally. The process may take 1–8 minutes. Do not remove the module.
-
Rapid blink, about three times per second
The update is in progress. This usually takes about 7 seconds. Do not remove the module.
-
2 blinks + pause
Incorrect or incompatible files on the microSD card. Remove the module and send us the LOGFILE.
-
3 blinks + pause
The microSD card is not detected. Remove the module, check that the microSD card is fully inserted, or send us the LOGFILE.
-
4 slow blinks
The module cannot read vehicle information. The ignition may be OFF, or the battery may be too weak.
-
LED stops blinking / turns off
The installation is complete. Remove the module from the OBD2 port.
How to find and send the LOGFILE
Important Notes
- Make sure the battery is fully charged.
- Do not remove the OBD module while the LED is blinking normally.
- Do not switch the ignition OFF during the procedure.
- Make sure the microSD card is fully inserted into the module before starting.
- Make sure the correct microSD card is used for each step.
- Disconnect all aftermarket devices connected to the CAN bus before starting the installation.
- Do not install the Factory software before an emissions test or a dealer visit unless we specifically advise you to do so.
Installation Steps
1. Turn the Ignition ON
Turn the ignition ON, but do not start the engine.
Insert the key into the ignition and turn it to the second position.
The dashboard should turn on and all warning lights should appear.
2. Wait 30 Seconds
After turning the ignition ON, wait about 30 seconds.
This allows the vehicle control modules to wake up fully before the installation begins.
3. Plug in the OBD Module
Plug the OBD module into the OBD2 port under the dashboard.
Press the module firmly into the port to make sure it has good contact.
4. Watch the LED
Watch the LED on the OBD module.
The module is working while the LED is blinking normally.
Do not remove the module during this process.
The installation usually takes 3–5 minutes, but in some cases it may take longer.
5. Remove the Module
When the LED stops blinking or turns off, the installation is complete.
Remove the OBD module from the OBD2 port.
6. Start the Engine
Start the engine and check the dashboard.
The OBD module installation is now complete.
When to Send the LOGFILE
Send us the LOGFILE if:
- The LED shows 2 blinks + pause
- The LED shows 3 blinks + pause
- The LED keeps blinking for too long and does not complete
- The Check Engine light remains on after installation
You will need a computer and a microSD card reader to access the LOGFILE from the microSD card.
How to find and send the LOGFILE
How to install SCR AdBlue / DEF Delete & PACKAGE DEAL
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