(Bloomberg) -- Volkswagen Group said its current-generation diesel engine does not have software designed to cheat on emissions tests, meaning its global recall of as many as 11 million cars will not need to be even bigger.
Diesel cars with EA 288 engines meet legal and environmental requirements, VW said Thursday in a statement.
The EA 288 replaced the EA 189 class of engines implicated in the emissions scandal.
VW had said earlier Thursday that it was examining whether other diesel engines have software that cheated emissions tests by turning on full pollution filters only when cars were being tested.
German news agency DPA had reported that EA 288 versions introduced in 2012, which meet Euro 5 emissions standards, could be affected by the emissions cheat software.
"After a thorough review it is now clear" that the offending software is not installed in vehicles with EA 288 motors built under previous Euro-5 standards, VW said on Thursday.
VW has consistently said its latest, Euro-6 EA 288 diesel engine complies with European regulations.
U.S. regulators have already said they are investigating Volkswagen's "generation 3" vehicles in the United States, which contain the EA 288 diesel engine.
VW said last month that software used to cheat U.S. diesel emissions tests could be in up to 11 million vehicles worldwide fitted with its older EA 189 diesel engine.
The automaker plans to recall and refit 8.5 million vehicles in the European Union. It said Wednesday that about 3 million of those would need hardware changes -- a more costly upgrade than the software changes needed for the other affected vehicles.
Almost five weeks after it admitted to cheating diesel emissions tests in the U.S., VW is still grappling to get to the bottom of a scandal that has wiped about a third off its stock market value, forced out its long-time CEO Martin Winterkorn and rocked the global car industry and German establishment.
Reuters and Automotive News Europe contributed to this report