If you can receive TMC and your disc has the TMC codes, then press the INFO button and make sure that the TMC station is the one that carries your TMC broadcast (its classic fm in the uk).

Then check the GPS menu under TRAFFIC and make sure the TMC is enabled and it should then work.

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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.