The German Federal Motor Transport Authority (KBA) has completed its tests on diesel vehicles and concluded that only Volkswagen Group has used defeat devices to cheat emissions tests. While other cars were tested and showed some levels of irregularities during on-road testing of emissions levels, they were found to be within legal limits.

Meanwhile Volkswagen Group's diesel recall is being delayed in Germany because the engine fix that Volkswagen has developed for the affected engines results is reported to result in higher fuel consumption.

Volkswagen started the recall for the Amarok 4x4 pick-up in January to fit the engine feature for the 2.0 litre turbo-diesel engines. The next recall was for the Volkswagen Passat models, Audi A4, A5 and Skoda Superb vehicles. All are fitted with 2.0-liter engines. It is reported that Seat models will be included in later recalls. It now appears that the second wave of diesel recalls of Passat cars has been halted.

Volkswagen plans to recall diesel cars with 2.0-liter, 1.6-liter and 1.2-liter Euro 5 diesel engines that have manipulated software. The 2.0- and 1.2-liter engines will get a software upgrade that requires about 30 minutes of labour time. The 1.6-liter engine will require installation of a mesh to regulate air flow in addition to a software upgrade, a process that Volkswagen had said will take less than an hour.