Valtteri Bottas lost almost 50 seconds at his second stop in the Bahrain GP with a cross-threading issue at the front axle.
In last weekend’s Saudi Arabian race, Zhou Guanyu was delayed by a similar problem for around 25 seconds when he pitted.
The Chinese driver was one of only four drivers not to have stopped when the safety car came out, and despite having to deal with some cooling issues he was on course to finish 11th.
Team representative Alessandro Alunni Bravi confirmed that the team is working on addressing the problem.
"First of all, for me, it's very important to say that was not the mistake of our mechanics or crew, they are doing a really good job,” the Italian told Autosport.
“We know that we have a problem, we have an issue that has been the same in Bahrain on Valtteri's car, and this time on Zhou's car.
“So we have investigated, and we are working to fix this problem as soon as possible. And we are revising the parts in order to not have this problem again in the next races.”
Source: Autosport