(AP) — The Latest on a possible deal for the remaining 80,000 vehicles caught up in Volkswagen’s emissions cheating scandal.

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A federal judge overseeing lawsuits stemming from Volkswagen’s emissions cheating scandal has given attorneys for the government, company and car owners another extension to try to reach a deal for the remaining 80,000 polluting vehicles.

U.S. District Court Judge Charles Breyer said Monday that the negotiations were complicated with many details to be worked out. He granted the request for an extension to Tuesday, though he cautioned that would be a “final” deadline.

Breyer had asked the parties to update him on a potential settlement on Monday after twice postponing a hearing Friday to give them more time to negotiate.

The talks aim to hammer out what to do with the 3-liter diesel cars that were programmed to skirt emissions tests.

The German automaker previously reached a deal for 475,000 polluting 2-liter diesel vehicles.

Volkswagen is facing a deadline to tell a federal judge in San Francisco whether it has reached a deal with U.S. regulators and attorneys for car owners on the remaining 80,000 diesel vehicles that cheated on emissions tests.

U.S. District Judge Charles Breyer gave the sides until Monday to update him on a potential settlement. He postponed a hearing twice Friday to give the parties more time to negotiate.

Breyer said the parties had made substantial progress and he was optimistic they would arrive at a resolution.

The talks aim to hammer out what to do about 80,000 3-liter diesel cars that were programmed to skirt emissions tests.

The German automaker previously reached a deal for 475,000 polluting 2-liter diesel vehicles caught up in the scandal.