The German Federal Motor Transport Authority has accepted Volkswagen’s proposed repairs for the 1.6 and 2.0 litre versions of its emissions-cheating EA189 diesel engine. The 1.6 will need a software and hardware upgrade to be compliant, but the 2.0 will only require a software update. The first recalls will likely begin in January.
For the 1.6 TDI, technicians will install a piece of mesh called a “flow transformer” in front of the air mass sensor. This part will calm “the swirled air flow in front of the air mass sensor and will thus decisively improve the measuring accuracy” of the component, according to the automaker’s explanation. Mechanics will also update the engine software, and the company expects the whole repair to take less than an hour.
So far, VW only says that the 2.0 TDI needs a software update, and should take about half an hour to install.
The carmaker’s goal is for these repairs is to meet emissions standards and have no detrimental effects on fuel economy or performance. However, VW admits that it hasn’t yet tested the fixes on every model variant to confirm that desire. The company also still needs to submit a fix for the 1.2 litre three-cylinder diesel to the German regulator, but the carmaker expects to have a software update ready to present by the end of the month.