ID. Software 3.9.1 for Volkswagen vehicles on the MEB platform with 3.8 software – available. The rumors have been confirmed.
Since the first quarter of 2026, rumors have circulated online that Volkswagen is preparing an update 3.9 for vehicles with older versions of ID. Software. Now those reports have been confirmed, as Volkswagen has begun distributing ID. Software 3.9.1, which is being rolled out to models with ID. Software 3.8.x and activates some features that were previously available only in the latest 4.x, 5.x, and 6.x versions, including battery pre-warming before charging and more precise monitoring of Li-ion cells.
ID. Software 3.9.1 – what’s new?
The information appeared in a Volkswagen ID. Drivers Club Facebook group founded and managed by Volkswagen, posted by “Admin,” which is a representative of the brand (source). Here is an automatic translation of the message using DeepL, slightly edited by us to retain some of the casual tone:
In this update, we focused on loading performance, battery maintenance, and overall system reliability, as well as important security updates. Many of these improvements are the result of your feedback posted here in the ID Drivers Club. We would like to thank you for that.
NEW FEATURES IN ID. SOFTWARE 3.9.1
Preliminary preparation of the battery for fast DC charging. Now it’s possible to manually warm up the high-voltage battery before starting fast charging. This helps achieve higher charging speeds at DC charging stations, especially in lower temperatures.
Optimized battery temperature management. The battery temperature is now automatically adjusted based on driving style, and it cools more effectively after fast charging. This can help improve performance, range, and the long-term health of the battery pack.
More reliable AC charging. In rare cases, the AC charging power would drop unexpectedly. The charging efficiency is now automatically stabilized.
Better integration with wall chargers that utilize excess energy from solar power. Charging using surplus solar energy (e.g., SMARTFOX Pro devices) can now be properly resumed after a charging interruption.
Reliability of electric door handles. It improves door operation, especially under changing weather conditions. If further adjustments are needed, the service partner will contact you after the update.
Battery monitoring. The system now checks for excessive self-discharge. If such a phenomenon is detected, a warning will appear so that the battery can be checked by the service partner.
Improvements in usability and comfort. The welcome screen now closes automatically after five seconds. Warnings related to the child lock now disappear automatically after the issue is resolved. The problem causing incorrect low refrigerant level alerts has been fixed.
Important security updates. This update includes improvements to IT security and is required to receive future OTA updates.
The “manual” battery heating feature before fast charging was available in ID. Software 4.x from the beginning, that is, since 2024. It seems Volkswagen wants to encourage owners of older cars to purchase a newer model.
The most important message not included in the post itself is the mention of the need to have an ID. Software in version 3.8.x. Earlier versions must first be updated to 3.8.x, if the manufacturer has provided such an option. Another key point is the lack of a digital key function supported through the Phone Wallet app. Owners of older cars relied heavily on this feature, hoping they would eventually be able to use their cars solely with software built into smartphones, without external apps, logging in, etc.
ID. Software, illustrative image
The latest ID. Software 3.9.1 appeared in a group dedicated to Volkswagen vehicles, so there is a chance it will be rolled out to Skoda models (Enyaq) and Audi models (Q4 e-tron). But this should not be taken as certain: while Skoda has historically tended to follow Volkswagen, the high level of customization in Audi models may have led to reluctance to introduce the latest software versions. Additionally, we are talking about cars whose warranties are about to expire, and Audi even had a strategy for years involving navigation maps — “Buy a newer car to get newer maps.”
ID. Software 3.9.1 is distributed over the internet (OTA) and does not require a visit to a service center. It might be the penultimate update for vehicles with older software versions, mainly driven by battery recall actions.
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