Request about availability of your MMI updates

Audi A4 MMI Conversion Packages – North America to Europe

Browse conversion packages for compatible North American Audi A4 MMI 3G High and MMI 3G Plus systems that need European navigation maps. Each package is designed for a specific MMI system and North American software branch.

These conversions retain the appropriate North American firmware branch while adding support for the supplied European navigation database. Confirm your complete software version and follow the product-specific instructions before ordering or installing.

Identify your MMI system and software branch

The MMI 3G High package is for HNav_US systems; the MMI 3G Plus package is for HN+_US_AU3G systems. These are different systems, and HN+ is not interchangeable with HN+R. Check the complete software version using our Audi MMI identification guide or use the Check Upgrade service.

North America to Europe conversion options for Audi A4

The packages in this category are for selected North American MMI 3G systems. They include European maps version 6.36.0 and system-specific conversion files, but the North American firmware branch remains in place. Check the starting software train before selecting a package.

MMI 3G High (HNav_US) conversion

For compatible North American MMI 3G High systems whose software train begins with HNav_US_. The package includes HNav_US_K0133_3_D1 firmware, European maps 6.36.0, regional conversion files, map activation, a Hidden Green Menu script and a 03623 error removal script.

The firmware remains on the HNav_US branch; this procedure does not install HNav_EU firmware. The product is supplied as a digital download.

View the MMI 3G High USA to Europe conversion

MMI 3G Plus (HN+_US_AU3G) conversion

For compatible North American MMI 3G Plus systems whose software train begins with HN+_US_AU3G_. The package includes HN+_US_AU3G_K0942_6 firmware, European maps 6.36.0, regional conversion files, map activation, a Hidden Green Menu script and a 03623 error removal script.

The firmware remains on the North American HN+_US_AU3G branch. The product page offers a digital download or three prepared SD cards. It is not for HN+R systems.

View the MMI 3G Plus USA to Europe conversion

Choose the conversion for your MMI system

Installed system Required North American software branch European maps Product
MMI 3G High (HNav) HNav_US_ 6.36.0 View conversion
MMI 3G Plus (HN+) HN+_US_AU3G_ 6.36.0 View conversion

The firmware branch stays North American

These products add support for European navigation maps while retaining the specified North American firmware branch. Do not install European firmware as part of these procedures unless the product instructions explicitly require it. The HNav_US and HN+_US_AU3G conversion packages are not interchangeable.

Installation and vehicle equipment

Follow the conversion instructions supplied with the selected product and install each stage in the listed order. Use a stable vehicle power supply and do not interrupt an active firmware or map update. If your vehicle has a Bose sound system, follow the product-specific instructions for selecting the Bose component during the firmware update.

Frequently asked questions

Does this conversion install European firmware?

No. The listed packages use the appropriate North American HNav_US or HN+_US_AU3G firmware branch while adding support for European maps. Follow the exact product instructions.

Can I use the HNav package on an HN+ system?

No. HNav is MMI 3G High and HN+ is MMI 3G Plus. Each system requires its own conversion package.

Can I use the HN+ package on an HN+R system?

No. HN+ and HN+R are separate software branches. The HN+ package in this category is not intended for HN+R.

Are European maps and activation included?

Yes. Both listed conversion packages include European maps version 6.36.0 and the required map activation. Check the product page for the complete package contents and delivery options.