Kevin Magnussen apologised to Jolyon Palmer and the rest of the Renault team after clashing with his team-mate in Spain last Sunday.
Magnussen was handed a time penalty in the wake of the grand prix as the stewards deemed the Dane responsible for their final lap clash.
Magnussen, who was on a new set of soft tyres, easily caught his team-mate on the fresher rubber and tried to pass.
However, instead he collided with Palmer and forced the Brit wide. The duo, though, returned to the track with Palmer still ahead in P13 and crossed the line as such.
Magnussen later dropped to 15th place as a result of the time penalty. He was also slapped with two penalty points on his licence.
“We had contact, it was my fault,” Magnussen told Autosport. “To be honest, I was four or five seconds per lap quicker.
“I was surprised how fast I was catching him. Then I thought I’d try.
“I had so much more pace and when I got past him, he hadn’t seen me coming.
“It was a bit unnecessary because there were no points at stake. Sometimes you get a bit excited.”
“I apologised. It was unnecessary. If I had gained a point, fair enough.”