Law firm Maurice Blackburn will launch a class action lawsuit on Thursday on behalf of Australian owners of scam-tainted Volkswagen AG seeking total damages "well north" of A$100 million ($71.59 million).

Volkswagen is embroiled in a global recall scandal, and faces several class action lawsuits, after tests showed that thousands of vehicles had been fitted with devices designed to mask the level of emissions.

More than 10,000 Australian owners have already registered for the class action that targets the German parent companies involved in the emissions scam, not just the local subsidiaries, Maurice Blackburn said.

"I am extremely disappointed that, because of the company's deceitful conduct, I've now got a car that is emitting dirty diesel," Audi owner Robyn Richardson told a news conference in Sydney.

"I am here to bring them to account for what they've done. I'm here to deter other companies from behaving similarly," said Richardson, one of the lead applicants for the class action in Australia.

Maurice Blackburn Principal Jason Geisker said the litigation, on behalf of more than 90,000 car owners, will seek to recover the full cost of the vehicle, plus damages for misleading and deceptive conduct, among others.

Volkswagen Group Australia (VGA) declined to comment on any "impending legal matters" but apologised for any disappointment and inconvenience.

"VGA assures all its customers that the affected cars are technically safe and the necessary measures will be undertaken at no cost to them," it said in a statement.

"We will do everything we can to fix this problem and regain the trust of our customers."

Volkswagen already faces a handful of shareholder lawsuits, including a securities-fraud class action in Virginia against its US divisions and a planned claim by Dutch investor association VEB on behalf of investors who bought VW stock through a Dutch bank or broker.

The company is also battling dozens of class actions accusing it of fraud for selling supposedly low-pollution, high-horsepower, fuel-sipping vehicles that have declined substantially in value since the revelations.

Litigation funder Bentham Europe, a joint venture between Australia's IMF Bentham and US hedge fund Elliott Management on November 5, said it was talking with Volkswagen's 200 largest investors about filing a lawsuit in Germany, as soon as February, claiming negligence and breach of securities law. - Reuters