How to Prepare for Installation
This article walks you through a quick pre-install checklist to make sure your OBDtune setup goes smoothly. You’ll learn what to prepare in advance—battery/power, DEF (AdBlue) fill level, and how to capture and send a LOGFILE if needed—plus what to expect depending on your radio/screen type.
Table of Contents
Pre-install checklist (all solutions)
Power and setup
Charge the battery. If possible, run the engine for 30 minutes.
If your vehicle cannot start due to a DEF/AdBlue block, use a 40A battery charger connected for at least 1 hour. For smaller chargers (3–5 amps), charging for 24 hours will be necessary. Please follow your Battery Charger’s instructions for proper use.
Plan 20–40 minutes with no rush. Ideally at home/office/garage—not in a “last minute parking lot” situation.
A warm environment helps. If possible, park the vehicle in a warm place for a few hours before installation and perform the install there.
DEF (AdBlue): prepare fluid in advance
A full DEF tank is required for successful installation of any solution.
It may sound counterintuitive before removing DEF-related logic, but the procedure requires a full tank to complete correctly.
Fill to 100%. Even 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.
Important: if you cannot fill the DEF tank due to a leak or a fault, you must tell us before purchase so we don’t waste time on attempts that are unlikely to succeed.
Be ready to send diagnostic file (LOGFILE)
If anything goes wrong during installation, we will usually need the LOGFILE (installation log).
To send it, you typically need:
- Windows PC / laptop
- microSD card reader
- internet access
Radio / display: what to know ahead of time
The module can install the software regardless of your radio type.
The main difference is whether install progress/status will be shown on the screen.
OEM factory radio/display
Sprinter:
No extra prep steps are required.
2008–2013 and 2019+: the install process is not displayed on the factory radio screen, but the module can install the software.
2014–2018: install progress is displayed on the factory radio screen.
Mercedes-Benz passenger vehicles:
No extra prep steps are required.
2008–2019: the install process is displayed on all OEM factory radio screens.
2020+: the install process is not displayed on the factory radio screen, but the module can install the software.
Aftermarket radio
The module can install the software, but install progress will not display on an aftermarket radio screen.
No extra prep steps are required.
When ordering, tell us you have an aftermarket radio (chat/manager/options).
No radio / no screen
The module can install the software without any radio/display.
No extra prep steps are required.
When ordering, tell us there is no radio/screen.
