Audi MIB2 and MIB3 systems can look very similar, but they use completely different firmware, navigation databases and activation methods. The safest way to identify your system is by checking the Media or Train Version shown in the MMI software information screen.
If your software version starts with BNav, HNav, HN+, RMC or MHIG, you have an older Audi infotainment system. See our complete Audi MMI identification guide for MMI 2G, MMI 3G, RMC and MIB1 systems.
How to Identify Your Audi MMI Version: A Complete Compatibility Guide
Before you can update your maps, activate CarPlay, or convert your system from US to EU, you need to know exactly which “brain” your Audi has. Since 2009, Audi has released several generations of the Multi Media Interface (MMI), and the software for one will not work on another.
At MMIUpdates.com, we want to make sure you get the right files the first time. Follow this simple guide to identify your system in less than 60 seconds.
Table of Contents
Step 1: The “Version Information” Screen
The most reliable way to identify your system is through the engineering menu.
- Press the Setup or Menu button on your console.
- Go to Settings.
- Scroll down to Version Information.
You will see a string of characters starting with letters like HNav, HN+, or MHI2. This is your “Media Version” or “Train Version.”
Step 2: Decoding the Version String
Once you have the code, use this table to find your system:
| Version Starts With… | System Name | Typical Years | Technology |
| MHI2_ | MIB2 (Harman) | 2015–2020 | CarPlay/Android Auto Capable |
| MHI2Q_ | MIB2 (Alpine) | 2016–2020 | Often found in Q5/A4 B9 |
| MHI3_ | MIB3 | 2020–2026 | Touchscreen only, modular |
Step 3: Visual Clues
If you can’t access the menu, look at your controls:
- Joystick on Knob: If your big control knob has a tiny joystick on top, you likely have MMI 3G High or Plus.
- Dual SD Slots: Most MIB2 and 3G systems have two SD card slots in the glovebox or behind a flap on the dash.
- No Buttons, Only Touch: If your car has no rotary controller and only a touchscreen (like the newer A6 C8), you have MIB3.
Why Version Identification Matters
Installing MIB2 software on an MMI 3G system is impossible, but trying to force an incorrect firmware update can “soft-brick” your unit. By identifying your Train Version (e.g., MHI2_ER_AUG11_P3634), we can provide you with the exact, stable update that includes the latest features and bug fixes for your specific hardware.
FAQ: Frequently Asked Questions
My version starts with RMC_, is that MIB2?
No, RMC (Radio Media Center) is a basic version usually found in A1, A6 or Q3 models. It has limited update options, but we still offer CarPlay modules for these!
Can I upgrade MMI 3G to MIB2 hardware?
This is a very expensive hardware retrofit. Most customers find that adding our CarPlay Retrofit Module to their 3G system is a much better value.
I found a version on a forum, can I use it?
Be careful. Firmware is region-specific (US vs EU). Using the wrong region’s firmware will disable your navigation and radio.
