With Renault vowing to win the midfield battle this season and close the gap to the top three teams ahead, their start hasn't been ideal. Yes, they are in fourth place together with Alfa Romeo, but they've also never made it to the finish with both cars. Same goes for the Renault-powered McLarens. That's a very bad sign.
"We really have to get on top of these things, because we're costing ourselves results, experience and points," Hülkenberg told Motorsport.
"I think we know that we have homework to do on that side. We need fixes rather sooner than later."
The Hülk had to stop his Renault after just 17 of the 56 laps during the Chinese Grand Prix, pulling into the pitlane and never coming back out.
"I lost power and it didn't go anywhere. It looks like it's related to the MGU-K again, unfortunately. So it looks like we have more work to do there."