Volkswagen Group now faces the prospect of compensating thousands of owners of tainted diesel vehicles after Germany’s top court undercut the automaker’s defense strategy in a case pertaining to its emission scandal in 2015.

The Federal Court of Justice batted down VW’s arguments that its cheating software was legal under European Union law and therefore the company isn’t required to compensate affected customers. The court unusually laid out its opinion on Friday, despite having to cancel a much-anticipated Feb. 27 hearing after a plaintiff withdrew his complaint.

In its statement, the court said VW had the obligation to provide a vehicle free from defect and that the model change doesn’t rule out a replacement. The court didn’t indicate what affect software updates would have on VW’s position.

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VW had sought to reach a settlement in the case to avoid a ruling against it by the court that could weaken its efforts to sidestep claims over its rigged diesel vehicles. Unlike in the U.S., the company has refused to compensate affected customers in Europe, and some 400,000 customers have signed up for a mass suit against the world’s largest automaker.
The court statement doesn’t allow “concrete conclusions” regarding its impact on other legal claims, Volkswagen said in a statement.
The company reiterated that delivering a new vehicle in the case in question is “impossible” because the Tiguan sold to the customer in 2015 is “totally different” from the current version.

Volkswagen has continued its struggle to move past the three-year-old emission scandal. In 2015, it admitted to rigging diesel cars to detect test conditions and lower emission levels to legal limits, while polluting more on the road. The crisis involved as many as 11 million diesel cars worldwide and has cost VW about 28 billion euros ($32 billion) so far. Probes by German prosecutors into the root of the engine rigging are also ongoing.

The customer in the case that was supposed to be heard next week had demanded a new car because the Tiguan diesel SUV he bought in July 2015 — two months before U.S. authorities uncovered the engine manipulations. VW has claimed it can’t deliver a new car because it’s not produced any more. The current Tiguan SUV, which starts at 27,775 euros, is the successor model.