You can add languages, but like Brian says, it requires extra work and loosing one of the OEM languages.

I've added loads of non OEM languages to the mk3/mk4, Polish and Portuguese are available too.

Here you go mate, Polish and Portuguese language packs

https://rapidshare.com/files/1683175...uage_packs.rar

Use navtweak to add the txt files (navcoder 2.7) you will need to rename 2 of the loaded languages with the new ones and then also replace the same voice files with the new voice files (remember to rename them.

You may also need to make a new voices dir and change the language version number.

If need be use navcoder to swap the languages.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.