Jarno Trulli says he was surprised to be able to qualify on pole position for the Bahrain Grand Prix after suffering from brake problems throughout Saturday.
The Italian headed teammate Timo Glock in Toyota's first ever sweep of the front row after securing his fourth F1 pole position. It was Toyota's first pole since the 2005 Japanese Grand Prix.
Trulli, aiming to win his second F1 grand prix, admitted he fears a repeat of his braking issues in Sunday's race.
"It wasn't an easy qualifying, things were quite difficult," he said. "I had some trouble with my car, the brake pedal was getting longer and longer.
"To be honest I didn't feel very comfortable for the qualifying lap, I felt more competitive with the race pace. But I knew I had a good car and could fight for pole so it was nice to end up with first and second, for the team especially it is great to show what a great result this is.
"But we need to analyze the data to see if we have a problem with the brakes, because I've had a problem so it is a bit of a worry."