Volkswagen’s notorious “Dieselgate” emission cheating scandal seems like a never ending nightmare for the German colossus, as it didn’t meet its March 24 deadline set by a San Francisco-based District Judge.

However, due to the company’s visible progress regarding the situation, the federal judge and U.S regulators extended the deadline for 1 month, until April 21, so that VW can agree on a fix for the 600,000 diesel vehicles affected, Reuters reports.

According to Charles Breyer, the U.S. District Judge, progress has been made in intensive negotiations, but issues remain and no settlement has been reached yet:

“The remedy could involve fixing the roughly 580,000 U.S. vehicles or buybacks and other options”, Breyer said.

VW already offered its U.S. customers $1,000 in concessions, but the car makers already faces over 500 lawsuits and up to $46 billion in fines to the Justice Department. To top it off, VW, Audi and Porsche’s embargo of selling any new 2016 diesel models in the United States is still on.

The scandal started in in September 2015, when Volkswagen admitted that it used the so called “defeat devices” so that its diesel powered cars would emit fewer pollutants during emission tests.

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