Audi MMI 3G US to EU Conversion – Complete Step-by-Step Guide

Before You Start – This Guide Is Only for MMI 3G

This tutorial covers USA / North America to Europe conversion for Audi MMI 3G systems, including:

• HNav_ – MMI 3G High
• HN+_ – MMI 3G Plus
• HN+R_ – MMI 3G Plus used in selected Audi models

This guide does NOT apply to:

• MHI2_
• MHI2Q_
• MHS2_
• MH2p_
• MHI3_
• MST2_
• RMC_

MIB1, MIB2 and MIB3 region conversions use different procedures.

Before changing firmware, EEPROM, navigation region or radio configuration, check the complete software version of your MMI.

What Does a Full MMI 3G US to EU Conversion Change?

A complete conversion can involve several separate elements:

1. MMI language / regional configuration
2. Firmware compatibility
3. Navigation region
4. European navigation database
5. Map activation
6. Radio frequency configuration

Simply installing European maps does not automatically convert the complete MMI from North America to Europe.

Likewise, simply flashing European firmware onto a US unit is not always sufficient.

Step 1 – Understand the EEPROM Language Difference

A full US to EU firmware conversion can require changes to the MMI EEPROM language configuration.

North American MMI 3G units typically contain language configuration intended for the US market, while European units contain European language data.

Because of this, installing European firmware directly onto a US-configured unit without the required EEPROM preparation can result in missing or incorrectly displayed text on the MMI screen.

This is why EEPROM preparation is an important part of a true firmware-region conversion.

Do not modify EEPROM data unless you understand the procedure and have a verified backup.

Basically US cars has information only about:

• US english
• Spanish – US version (a bit different than in Europe, only in firmware code).

where EU cars might have informations about all European languages except above

If you decide only reinstall firmware from Europe version on US version you will do that… but, you will don’t see any types of font / words on mmi screen, as it has coded only US languages, not Europeans.

So, to install EU firmware on US cars, EEPROM language section has to be modified.

But..

Alternative – European Maps Without a Full Firmware Conversion

A full EEPROM and firmware conversion is not always required if your main goal is only to use European navigation maps.

On supported MMI 3G systems, it can be possible to keep:

• US firmware
• US English language

while changing the navigation region and installing compatible European map data.

This is different from a complete US → EU firmware conversion.

If you do not need European MMI languages or a complete firmware-region change, this route can be simpler.

There’s another way to install Europe maps on US cars without changing language in EEPROM – but you will stay with US english language & US firmware!.

You will need to install latest US firmware. Installation procedure we describe HERE, there’s nothing else to do. If you have bose system, you will need unselect it for update (described in tutorial).

Full conversion packs:

• Audi MMI 3G High – Hnav US to EU Conversion pack. (Audi A4, A5, Q5,Q7)
• Audi MMI 3GP HN+ US to EU Conversion pack. (Audi A4, A5, Q5, Q7)
• Audi MMI 3GP HN+R US to EU Conversion pack. (Audi A6, A7, A8, Q3)

After successfully firmware upgrade, you will need to enable Hidden green menu (how to do it, described here).

In Green menu, you have to go to the: SWDL, and enable:

• User defined mode.
• Ignore region and variant.

After that we need to change the region. So in Hidden Green Menu go to the: System > Internal

and select there EU

Then go to the: Nav -> databaseupdate And Change your “Active HDD Nav DB” to the region/country of your choice in our case: EU.

List of regions:

1. Unknown
2. Default
3. EU
4. North America
5. South America
6. AGCC
7. Korea
8. Japan
9. China
10. Asia Pacific
11. South Africa
12. Australia (New Zealand)
13. India
14. Taiwan (ROC)
15. AGCC_2 (arabic)
16. Turkey
17. Chile
18. no navi db

After that, you can perform with maps update using our tutorial, click here to get there.

Full conversion packs:

• Audi MMI 3G High – Hnav US to EU Conversion pack.
• Audi MMI 3GP HN+ US to EU Conversion pack.
• Audi MMI 3GP HN+R US to EU Conversion pack.

Please remember to remove old nav database and nav partition (everything is described in tutorials).

There will be one more thing to do, change radio frequencies to work with EU. To do this you can use OBDeleven, just find and click option to modify radio frequencies.

I hope this tutorial will help you with US conversion. IF any questions just ask in comment 🙂

Which MMI 3G Systems Can This Guide Apply To?

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