Kammala wannan jumla: Coulthard ya fara kakar wasa ta hanyar zira kwallaye a cikin hudu daga cikin tsere biyar na farko. Kafin San Marino Grand Prix, Klien ya maye gurbinsa da Red Bull gwajin direba Vitantonio Liuzzi wanda ya haɗu da Coulthard don tsere huɗu masu zuwa. An tilasta janye dukkan kungiyoyin da ke amfani da tayoyin Michelin, gami da Red Bull, a gasar Grand Prix ta Amurka mai cike da cece-kuce, yana nufin Coulthard bai fara tsere ba a karon farko a rayuwarsa. A watan Yuli, an sanar da cewa Coulthard zai ci gaba da kasancewa a Red Bull a shekara ta 2006. Wannan ya nuna wani juyi a lokacinsa kamar yadda Coulthard bai ci maki ba a cikin shida daga cikin tsere tara da suka rage. Ya samu maki sau uku a wannan lokacin <unk>
Jamus, Turkiyya da Japan. Ya gama kakar wasa a matsayi na goma sha biyu tare da Red Bull na bakwai a gasar zakarun Turai.