The FIA's International Tribunal had ruled that Mercedes did – unintentionally – 'obtain some material advantage' from its tyre test with Pirelli.
Following an extensive hearing in Paris, the Tribunal elected to reprimand both Mercedes and Pirelli
for carrying out the test, while Mercedes was also banned from taking part in this year's Young Driver Test.
The hearing had centered on whether or not Mercedes had breached F1's testing regulations in conducting the test, which saw Lewis Hamilton and Nico Rosberg spend three days on track with Pirelli after the tyre company asked for assistance with tyre development work.
The main issue was that the Mercedes test was conducted with its 2013 car as opposed to an older specification car, as was the case when Ferrari carried out a Pirelli test of its own earlier in the year.
Explaining its findings, the Tribunal accepted that both Mercedes and Pirelli had acted in good faith and that the team hadn't made a deliberate attempt to gain an advantage, but stated that regulations had still been broken.
The Tribunal also insisted that an advantage had
in fact been gained from the running that took place which was behind its decision to now prevent him from taking part in the Young Driver Test.
“The track testing, which is the subject of these proceedings, was not carried out by Pirelli and/or Mercedes with the intention that Mercedes should obtain any unfair sporting advantage,” the Tribunal findings revealed. “Neither Pirelli nor Mercedes acted in bad faith at any material time
“Both Pirelli and Mercedes disclosed to FIA at least the essence of what they intended to do in relation to the test and attempted to obtain permission for it; and Mercedes had no reason to believe that approval had not been given.