“Some months ago I updated the MMI software of my Audi A3 8V (2017) for different reasons (update navigation maps). And look, the empty tank alert problem is solved! I had put this on the list of things to check at the dealer at nearly every service – never did the dealer find it necessary to update the MMI software. I find that quite disappointing for a ‘premium’ brand.”
: The update is usually applied via a high-speed Class 10 SD card.
[MHS2 Engineering Menu] └── Version Info: MHS2_ER_AU_P1240 ├── Requires: SD Card 1 (System / Navigation Database) └── Requires: SD Card 2 (Activation / Patch Files)
Updating your MHS2 system involves two main parts: the firmware (system software) and the navigation maps. Here’s a step-by-step breakdown: mhs2-er-au-p1240
If you update to MHS2_ER_AU_P2035 (and optionally apply an FEC activator), your MMI gains:
If you are planning to update or modify your firmware using resources like M.I.B._More-Incredible-Bash or third-party activators, be aware that updating the firmware can sometimes disable premium sound systems like or Bang & Olufsen if the amplifier is not properly bypassed during the update.
is an official factory firmware version string for the Audi MIB2 Scale (MIB-HS) infotainment system manufactured by Delphi. This specific firmware string indicates a system built for the European market ( ER ), tailored for Audi vehicles ( AU ), and running production software train version P1240 . “Some months ago I updated the MMI software
The keyword (often stylized as MHS2_ER_AU_P1240 ) refers to a specific, production-stage factory firmware version used in Audi Multi Media Interface (MMI) systems. Specifically, it belongs to the Delphi MIB2 Scale (MIB-HS) infotainment platform.
Updating your MMI firmware is done at your own risk. This article provides general information only. Always follow the instructions provided with your specific update files. If you are uncertain, have the update performed by a qualified professional.
Based on the code provided, this appears to be a reference to a (specifically a model from the MHS series, commonly used in residential and light commercial VRF/multi-split applications). I find that quite disappointing for a ‘premium’ brand
The firmware is a capable but outdated baseline for Audi’s MIB2 High Scale 2 (MMI Navigation standard) system. It served its purpose from 2017 to 2020, but by 2025 it is missing too many modern features to be satisfactory for most owners. The Bluetooth hands‑free bugs, map compatibility lock, and lack of smartphone integration push owners towards an upgrade.
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Navigate to to view your current "Train Version". Common Applications and Compatibility Compatibility Details Compatible Models Audi A3, A4, A5, Q2, Q5 (typically 2015–2020) Map Updates Compatible with SD Card Updates for Europe and the UK Hardware
Hold both down for roughly 5 to 8 seconds until the screen shifts to a red or green display known as the . Scroll down to Version Information or Train Version .
: This version is frequently used as a baseline before updating to newer versions like to fix bugs or improve system stability. Navigation & Maps