Like this quote here from the Carsguide article:

"We have just notified our dealers and are sending out letters to customers to bring in their cars to have an upgrade of their engine software," Volkswagen Australia spokesman, Karl Gehling, says. Gehling says apart from one owner's engine blowing up, there have only been a few reports of problems.
This from Carsales:
The problem appears to be unique to Volkswagens in Australia. The company says there have been no other similar reports overseas and the computer fix was devised by Germany specifically for Australia.