A mandatory recall should allow all of the vehicles to be repaired sooner, but it's also going to cost VW more money. Company CEO Matthias Müller previously said he expected the repairs to be done by the end of 2016. According to Automotive News citing a report from Germany's Bild, VW had originally asked the German regulators to make the campaign a voluntary one. Unsurprisingly, that request was denied.
VW hasn't been specific about how it plans to fix the 11 million engines around the world with the rigged software. An update is expected for many of them, but mechanical changes might be necessary for others. On this side of the Atlantic, VW has until Nov. 20 to outline fixes for regulators in California. Although, the Environmental Protection Agency intends to check any proposed fixes thoroughly to make sure that they actually work. That process could take months.