Passat Recall - ECU update

[passafist]

VW Australia have just issued a recall (23C4). It states that the 'Electronic Control Unit software in your vehicle is required to be updated'

A German forum is abuzz with this recall because people are experiencing a general loss of power after the update (at higher revs).

Does anyone have any knowledge of the truth behind this "update"?

[passafist]

Well I've had the update. The Service Mgr explained it involved a remapping of the timing for better fuel efficiency. The 3.2 engine is still as punchy as ever!