Mercedes will lose Aldo Costa to Dallara from 2020 as he is set to become the Italian manufacturer’s new chief technical officer.

Costa joined the reigning F1 world champions from Ferrari at the end of 2011 and has been an integral part of its success having acted as chief designer and engineering director since 2013 to oversee Mercedes claim five consecutive world drivers’ and constructors’ titles.

Last year Mercedes shuffled its technical heads to move Costa into a technical advisor role, allowing him to spend more time with his family in Italy.

Costa will leave Mercedes entirely at the end of September in preparation to become technical head at Dallara from the start of 2020.

“Since stepping back from my role as Engineering Director, I have enjoyed supporting the team during this season and have also been searching for my next challenge beyond Formula 1,” Costa said.

“After many years working at the pinnacle of our sport, I am excited to be able to contribute some of what I have learned to other racing series and to high-performance automotive projects outside racing.

“One of my personal passions is to mentor and grow young talent, and it will be a focus for me to help attract and develop the next generations of Italian engineering talent at Dallara in the years ahead.

“Finally, thank you once again to all my friends and team-mates at Mercedes; it has been an extraordinary privilege to be part of the team's development and success - and we have been able to build an incredibly strong group to tackle the challenges of the future.”

Costa has an unrivalled success rate in Formula 1 having been part of the design team behind 13 world constructors’ titles and 11 world drivers’ titles during his career at Ferrari and Mercedes.

Mercedes team principal Toto Wolff says Costa became “one of the pillars of our team” and has duly paid huge credit to the Italian for his work in helping the German manufacturer becoming the dominant force in F1.

“Aldo has been one of the pillars of our team since he joined in 2011 and he now leaves us with the same dignity and professionalism that have characterised his years with us,” Wolff said. “Aldo’s passion for racing burns brightly - both in the engineering office and, sometimes, in the cockpit as well.

“He wanted to return to Italy to spend more time with his family and still has much energy and expertise to contribute to the motorsport community.

“His new role with Dallara is a fantastic opportunity and I am delighted he has found such a rewarding role in which to pursue his career - and to contribute his knowledge to almost every level of global motorsport. On behalf of everybody at Mercedes, I would like to wish him great success in this next chapter.”