Paddy Lowe believes Mercedes' second half of the season is looking "very promising" after three wins in five grands prix.
Having shown pace in the Saturday qualifying sessions, Nico Rosberg finally followed up with a race victory at May's Monaco Grand Prix.
Since then the team has taken an additional three pole positions and two race victories with Lewis Hamilton securing his first for the team last time out in Hungary.
One man who reckons the team is on track for a solid second half of the campaign is Lowe, who joined Mercedes from McLaren as the team's executive director (technical) in June.
"It's not down to me," Lowe told Sky Sports F1 of the change in circumstances.
"I'm trying to distance myself from that, but the team have produced a great car this year.
"There have been one or two problems which needed to be understood, particularly around race pace, but we're clearly making progress.
"We've tried things. The team is very strong and has done a great job to understand the problems and adapt with a moving target because the tyres have kept changing.
"Hopefully we'll have some stability now, and that is what is very promising for the races to come."
Lowe's arrival at Mercedes means he has been on hand for all 21 of Hamilton's race victories as the duo previously worked together at McLaren.
"He is obviously great around Hungary, winning four times, which is just fantastic," added Lowe.
"What is so nice for the team, with Lewis having arrived this year, is for him to finally show what he can do, and for him to have the car to do it. It's a great combination.
"The car was there for him, and that's all credit to the guys at the factory who have been working very hard, and the guys within the race team who had a very tough weekend.
"A lot of work had to be done, but it was all done in a very controlled way, and I've been very impressed with that."
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