TWO class actions have been launched against Volkswagen Australia over the emissions testing scandal.
More than 100,000 consumers are involved in the suits for compensation that were filed in the Federal Court on Thursday morning.
Volkswagen Australia has admitted up to 91,000 cars in Australia are affected by the emissions "defeat" device that cheats pollution testing and has been installed in cars from 2009.
The ABC reported that Charles Bannister, representing many owners, said the company had no defence and should admit liability.
"The court made it very clear that it wants some explanation as to the position of the defendants on the allegations made against Volkswagen and Audi," he said.
Volkswagen has been given until December 17 to decide whether it will pay any compensation.
In a statement the company said the "clarification and solution of the diesel issue" was progressing.