McLaren's Jenson Button has admitted that he has been struggling with the balance of his MP4-29 at Hockenheim.
The Brit was eliminated during the second knockout session for the German Grand Prix and will line up from 11th on the grid.
"This hasn’t been an easy weekend for me, which is a shame because I really like it around here," he said.
"I’ve been struggling with the car’s balance.
"In qualifying, I encountered traffic on my first run in Q2, and that cost me the opportunity to get into Q3 – he [Romain Grosjean] wasn’t even on a new tyre when he was on that run, so it wasn’t going to be his quick lap."
"On my final Q2 run, I had a very different balance and a lot of oversteer. I wasn’t quick enough."
Hot temperatures have affected running at Hockenheim all weekend but Button is hopeful that forecast cooler conditions for Sunday's race will aid McLaren.
"Looking ahead to tomorrow: our long-run pace didn’t look too strong on Friday – we struggled in the hot conditions, but I think we’ll hopefully be better if the predicted cooler conditions roll in for Sunday afternoon," he said.