"I am absolutely burning to get back in the car," the young Austrian - who spent the last four in the 'Friday' seat - said at the Nurburgring.
Onto the reserve bench goes Vitantonio Liuzzi, who'll even miss out on the practice job at Montreal and Indy as Red Bull make the most of the American connection with Scott Speed.
Klien and Speed will this week get into the swing for the next back-to-back leg with a Silverstone test session. -GMM