VW examining if newer engine involved in emissions scandal

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10 Volkswagen Scandal Facts

Volkswagen is looking into whether earlier versions of its current diesel engine contained software capable of rigging emissions tests, it said on Thursday, potentially widening a scandal that has rocked Europe's biggest carmaker.

The German company 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.

It said in a brief statement on Thursday it was examining whether the software might also be in earlier versions of its latest EA 288 diesel engine.

That could add millions more to the number of affected vehicles, said Ferdinand Dudenhoeffer, head of the Center of Automotive Research at the University of Duisburg-Essen.

The more vehicles that include illegal software, the higher the costs Volkswagen could face for refitting them, as well as for potential regulatory fines and lawsuits.

"I think it is a big problem," Dudenhoeffer said, adding the lack of information from Volkswagen made it impossible to know for sure how many more vehicles might be affected.

"It suggests it doesn't know it's product, which is a tragedy."

History of Volkswagen through pictures:

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History of Volkswagen
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VW examining if newer engine involved in emissions scandal
circa 1950: Rows of ' Beetle ' cars at a German Volkswagen plant. (Photo by Fox Photos/Getty Images)
View of a Volkswagen Beetle, 1960s. (Photo by Hulton Archive/Getty Images)
circa 1975: Volkswagen Beetle cars parked. (Photo by Keystone/Getty Images)
DETROIT, UNITED STATES: Members of the media surround the new Volkswagen Beetle after its introduction 05 January at the North American International Auto Show in Detroit, Michigan. The Beetle, the best selling car in history, is being offered on the US market after a 19 year absence. AFP PHOTO/Matt CAMPBELL (Photo credit should read MATT CAMPBELL/AFP/Getty Images)
The New 1999 Beetle From Volkswagon. The Trademark Beetle Body Shape Is Immediately Recognizable, Though It Shares No Parts With The Old Beetle. It's Both Larger (161.1 Inches In Length And 96.3 Cubic Feet Inside) And More Powerful Than Its Predecessor And The Engine Is No Longer In The Back. The Car Is Available With A New Turbocharged 150-Horsepower 1.8-Liter Four-Cylinder Engine, A 115-Horsepower 2.0-Liter Four-Banger Or A High-Tech Turbo Direct Injection Diesel Engine That Gets 48 Mpg On The Highway And Has A Driving Range Of 700 Miles. The New Beetle's A Truly Modern Volkswagen, With A Fully Galvanized Body And German Engineered Suspension. Plus A Security System, Airbags* And 6-Speaker Cassette Stereo. (Photo By Getty Images)
NUERBURGRING, GERMANY - OCTOBER 07: INTERNATIONALES ADAC EIFFELRENNEN 2000 Nuerburgring; VW NEW BEETLE CUP (Photo by Christof Koepsel/Bongarts/Getty Images)
384066 02: FILE PHOTO: The new Volkswagen 'Microbus' concept vehicle is displayed for this publicity photo. The Microbus was introduced January 7, 2001 at the North American International Auto Show in Detroit, MI. (Photo courtesy of Volkswagen/Newsmakers)
398508 01: UNDATED FILE PHOTO A redesigned Volkswagen Beetle is displayed in this undated file photograph. Volkswagen officially opened a new assembly hall near Dresden, Germany, December 11, 2001 to produce the new Phaeton luxury car, which represents a dramatic new step for the German car company away from its traditional medium and small car market. (Photo courtesy Volkswagen AG/Getty Images)
A worker walks past a Polo car at a production line in Shanghai Volkswagen Automotive Company, 09 June 2003. One out of every 120 Chinese now own their own car as the government announced that there were more than 10 million privately owned cars plying Chinese roads, state press said. AFP PHOTO/LIU Jin (Photo credit should read LIU JIN/AFP/Getty Images)
SYDNEY, AUSTRALIA - OCTOBER 16: The Volkswagen Golf R32 on display during the Sydney International Motorshow at the Sydney Exhibition Centre October 16, 2003 in Sydney, Australia. The Sydney International Motorshow is the largest collection of automobiles on show in Australia with sixty new production models unveiled and concept vehicles on display. (Photo by Cameron Spencer/Getty Images)
DETROIT - JANUARY 5: Volkswagen displays the Concept T vehicle at the North American International Auto Show January 5, 2004 in Detroit, Michigan. The show, which will feature more than 700 vehicles, opens to the public January 10. (Photo by Bryan Mitchell/Getty Images)
ZOUERAT, MAURITANIA: Finnish Juha Kankkunen drives his Volkswagen Touareg 05 January 2005, during the sixth stage of the 27th Dakar Rally between Smara and Zouerat in Mauritania. Reigning champion Stephane Peterhansel of France won the stage. Peterhansel, hampered by a cold for two days, crossed the finishing line in 4hr 0min 29sec to beat out fellow Mitsubishi driver, and two-time champion, Hiroshi Masuoka of Japan by 5min 58sec and the Volkswagen of Bruno Saby by 7min 26sec. AFP PHOTO MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)
A line of 2006 Volkswagen Jetta GLI sedans sits on the lot of a Volkswagen dealership in the west Denver suburb of Lakewood, Colo., on Thursday, June 29, 2006. High gas prices continued to pull down sales by domestic automakers in June, while Toyota Motor Corp. credited the company's 14.4 percent sales boost to its many fuel-efficient offerings. (AP Photo/David Zalubowski)
Chinese men look at Volkswagen cars on a sales yard in Beijing in this March 31, 2006 file photo. (AP Photo/Greg Baker, File)
Unsold 2007 New Beetles sit in a long row on the back lot of a Volkswagen dealership in the west Denver suburb of Lakewood, Colo., on Tuesday, April 17, 2007. Volkswagen of America Inc. on Friday, June 1, 2007 reported U.S. sales rose 6.3 percent in May 2007 compared with May 2006, according to Autodata Corp. (AP Photo/David Zalubowski)
WOLFSBURG, GERMANY - MARCH 13: (L-R) Volkswagen Board members Detlef Wittig, Francisco Javier Garcia Sanz, Horst Neumann, Martin Winterkorn, Chairman of German automaker Volkswagen, Jochem Heizmann and CFO Hans Dieter Poetsch pose at the new Volkswagen model 'Scirocco' during the company's annual press conference on March 13, 2008 in Wolfsburg, Germany. The Volkswagen Group significantly increased its earnings last year. Profit before tax therefore grew to 6.5 billion euros. (Photo by Andreas Rentz/Getty Images)
A new 2010 Volkswagen Beetle convertible, right, is seen at the Los Angeles Auto Show in Los Angeles on Thursday, Nov. 20, 2008. The 2010 model will go on sale in Spring 2009. (AP Photo/Damian Dovarganes)
A SEAT Cupra is shown during the Volkswagen Group Night held in China's National Aquatic Center, also known as the "Water Cube", in Beijing, Sunday, April 22, 2012. (AP Photo/Alexander F. Yuan)
Volkswagen introduces the Golf R SportsWagon during the Los Angeles Auto Show on Wednesday, Nov. 19, 2014, in Los Angeles. The annual event is open to the public beginning Nov. 21. (AP Photo/Chris Carlson)
The new Volkswagen Passat is displayed during a reveal event at the Brooklyn Navy Yard, Monday, Sept. 21, 2015, in New York. (AP Photo/Kevin Hagen)
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INVESTIGATIONS

Almost five weeks after it admitted to cheating diesel emissions tests in the United States, Volkswagen 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 and rocked the global car industry and German establishment.

"The way this is all coming out...is amazing," said Bernstein analyst Max Warburton. "Perhaps they can change their advertising slogan from 'Das Auto' to 'Das Motor: Engines so complicated even we don't understand how they work!'" he said.

Volkswagen said in its statement there was no banned software built into vehicles with its latest EA 288 Euro 6 diesel engine, adding this had been confirmed by Germany's KBA automotive regulator.

"Other generations of the EA 288 are currently being examined," it added, without elaborating.

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.

But analysts said that would be small number compared with the volume of vehicles with EA 288 engines on European roads.

Diesel vehicles account for about a half of auto sales in Europe, compared with a small fraction in the United States.

Volkswagen said last week it would recall and refit 8.5 million vehicles in the European Union. It added on 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.

At 1200 GMT, Volkswagen shares were up 0.9 percent at 101.25 euros.

See the Volkswagen emissions scandal through pictures:

10 PHOTOS
Volkswagen emissions scandal
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VW examining if newer engine involved in emissions scandal
The Oct. 5, 2015 photo shows a man sitting on a bench in front of the Volkswagen factories in Wolfsburg, northern Germany. For Volkswagen, the cost of its cheating on emissions tests in the U.S. is likely to run into the tens of billions of dollars and prematurely end its long-sought status as the world's biggest carmaker. (Julian Stratenschulte/dpa via AP)
FILE - In this Sept. 21, 2015 file photo President and CEO of Volkswagen Group of America, Inc. Michael Horn at the Brooklyn Navy Yard in New York. Volkswagen's top U.S.-based executive is expected to testify before Congress Thursday that he first learned in 2014 of emissions problems with the German automaker's diesel cars. But in prepared remarks, Volkswagen Group of America CEO Michael Horn doesn't directly address when he was first told his company had developed on-board computer software designed to deceive emissions tests. (AP Photo/Kevin Hagen, File)
Hans Dieter Poetsch, new chairman of the board of directors of the Volkswagen stock company, arrives for a press statement at the company headquarter in Wolfsburg, Germany, Wednesday, Oct. 7, 2015. He fills a position vacated when longtime chairman Ferdinand Piech resigned in April. (AP Photo/Michael Sohn)
This photo taken on Sept. 29, 2015 shows the power plant of the Volkswagen factory in the city Wolfsburg, Germany. Thanks to Volkswagen, Wolfsburg boomed in West Germanyâs postwar rebirth and today the town and the company are inseparable. (AP Photo/Markus Schreiber)
This photo taken on Sept. 29, 2015 shows the power plant of the Volkswagen factory and the Science Center, right, in the city Wolfsburg, Germany. Thanks to Volkswagen, Wolfsburg boomed in West Germanyâs postwar rebirth and today the town and the company are inseparable. (AP Photo/Markus Schreiber)
In this Sept. 30, 2015, photo, John Swanton, spokesman with the California Air Resources Board explains how a 2013 Volkswagen Passat with a diesel engine is evaluated at the emissions test lab in El Monte, Calif. Three years after Volkswagen opened a pollution testing center in Oxnard, Calif., VW admitted that it manipulated emissions results in 482,000 U.S. diesel vehicles to make them appear to run cleaner, raising questions around Volkswagenâs only test center in North America. (AP Photo/Nick Ut)
New cars of the German car manufacturer Volkswagen are ready to be shipped at the Volkswagen factory in Emden, Germany, Sept. 30, 2015. (Ingo Wagner, dpa via AP)
This Sept. 28, 2015 photo shows Volkswagenâs only test center in North America in Oxnard, Calif. Three years after Volkswagen opened the pollution testing center, VW admitted that it manipulated emissions results in 482,000 U.S. diesel vehicles to make them appear to run cleaner, raising questions around Volkswagenâs only test center in North America. (AP Photo/Gillian Flaccus)
Newly appointed Volkswagen CEO Matthias Mueller smiles during a press statement after a meeting of Volkswagen's supervisory board in Wolfsburg, Germany, Friday, Sept. 25, 2015, after CEO Martin Winterkorn resigned on Wednesday amid an emissions scandal. (AP Photo/Michael Sohn)
RETRANSMITS graphic that moved Oct. 3; graphic shows vehicles affected by Volkswagen's emissions violations and estimated deaths in the U.S. from the excess pollution; 3c x 5 inches; 146 mm x 127 mm;
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