Volkswagen said on Friday it had stopped delivering the T6 multivan to dealers after detecting that the diesel model emitted excessive nitrogen oxide levels and had reported the findings to Germany's automotive watchdog (KBA). Earlier on Friday German magazine Der Spiegel, without identifying the source of its information, reported that VW tests had shown that T6 toxic nitrogen oxide emissions in part significantly exceeded legal limits as VW had set an emissions-related so-called "adjustment factor" too low when seeking KBA approval for the model.