Red Bull Racing boss Christian Horner believes that rival teams still want further clarification on the legality on the rear wing being used by Mercedes.
Despite confirmation from the FIA that the DRS activated F-duct device on the F1 W03 is legal, Horner said at Sepang today that he and other team bosses are still looking to "resolve" the matter.
When asked if the fact that the Mercedes had been declared legal for this weekend meant it was the end of the matter, Horner said: "Probably not. I am not the only one, other [team bosses] here are after clarity going forward.
"Is it something accepted as a clever innovation, and hats off to Mercedes if it is, or is it something that is not permissible moving forward? That is the most important thing to resolve and it would be good to come out of this weekend with that clarity."
Horner did concede that the stance of the FIA was unlikely to change, given the fact that the Mercedes had again passed scrutineering this weekend.
"There has been a bit of debate about the Mercedes," he said. "And assuming the car has passed scrutineering, you have to assume the FIA is happy with the configuration the car is in."