Lewis Hamilton will take a 10-place grid penalty at Sunday’s Turkish Grand Prix.
They added a fourth part - one more than permitted - and as a result Hamilton was dealt with a 10-place grid engine penalty.
The Mercedes team have admitted that they only required a change of the internal combustion engine for reliability and performance reasons, whilst not needing a change on any other components, including the turbo, hybrid system, battery and electronics.
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Hamilton is currently two points behind title rival Max Verstappen, and the penalty handed to the seven-time world champion will make it all the more difficult to catch the Red Bull racer.
Hamilton topped the FP1 classification in Istanbul. He recorded a lap time of 1:24.178, whilst Verstappen came in second with a gap of 0.425.
In Friday's second practice Hamilton followed up with a track record time of 1:23.804 on soft tyres, some six tenths of a second quicker than Verstappen.
Ferrari's Charles Leclerc took second (+0.166) with Hamilton's Mercedes team-mate Valtteri Bottas coming third (+0.410). Red Bull's Sergio Perez (+0.569) finished ahead of his team-mate Verstappen (+0.635).
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