Coletti's team mate Simon Trummer had qualified in ninth position on Friday and held station in the feature race, earning him two points despite being hit with a drive-thru penalty mid-race for not heeding waved yellow flags.
"I set a good pace and I stayed in the points zone until I hit the pit-stops," he said. "Unfortunately I couldn't see a yellow flag at the trackside and I got penalized with a drive-through. At that point I tried to manage my tyres well and as I could keep a fast pace, I was able to fight back to the points again."
Trummer added another four points on Sunday when he was able to avoid getting caught up some early trouble between his rivals on lap 1 to bring the Rapax home in sixth place.
"I started well, but I lost some positions due to the crash triggered by [James] Calado," he said. "I managed to avoid the melee and when I was back on my pace I saw I was faster than the car of [Johnny] Cecotto who was in front.
"I closed the gap on him but any pass attempt would have been really risky," he added. "I wanted to end this weekend on an high note so I decided to manage my tyres and avoid any possible concern."
Trummer is now in 11th place in the drivers standings, and between him and Coletti the drivers handed Rapax sufficient points to lead the team championship by seven points over Racing Engineering after round 1 of the 2013 season.
The next GP2 race weekend will be at Sakhir International Circuit, Bahrain on April 19-21.