I don't know if the VW OEM system does have TMC as a default. Most other OEM systems do not have it as a default, it is an extra option. I guess your dealer may have a clue. Most TMC boxes can be had for around the ?100 mark.
The oem satnav unit does not have a tmc function, its available as a seperate unit, which recieves the radio signal, and then sends it on to the satnav unit, it cost around ?250 new, or ?100 second hand.
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