Felipe Massa labelled his Hungarian Grand Prix as "terrible" after he languished down the order in 18th place amid troubles with his steering rack.
Massa has scored just one point in the past five races and crashed out of Q1 in Hungary, leaving him a lowly 18th on the grid.
The Brazilian encountered a problem with his steering rack en-route to the grid and while Williams strived to improve the situation before the start, Massa was still affected and failed to make progress.
"It was a terrible race, which started on the way to the grid with the problem with my steering wheel rack being too light on one side and too heavy on the other," he said.
"We tried to fix the problem and we couldn’t, but at least we improved it because the initial lap was impossible.
"To do the whole race with the steering wheel heavy on one side and light on the other was really difficult.
"I tried to race until the end but this wasn’t the result we were aiming for.
"The next race at Hockenheim is a different track which will hopefully be much better for us, so I hope we can get back to normality and score points with both cars."