Volkswagen said on Tuesday it will repair up to 11 million vehicles and overhaul its namesake brand following the scandal over its rigging of emissions tests.
New Chief Executive Matthias Mueller said the German carmaker would tell customers in the coming days they would need to have diesel vehicles with illegal software refitted, a move which some analysts have said could cost more than $6.5 billion.
In Washington, U.S. lawmakers asked the automaker to turn over documents related to the scandal, including records concerning the development of a software program intended to defeat regulatory emissions tests.
Europe's biggest carmaker has admitted cheating in diesel emissions tests in the United States and Germany's transport minister says it also manipulated them in Europe, where Volkswagen sells about 40 percent of its vehicles.