Robert Kubica is set to start from the back of the grid after taking on new power unit components at the Russian Grand Prix.
Kubica, along with Williams team-mate George Russell, was fitted with Mercedes’ Phase 3 engine in Belgium, but suffered a failure during qualifying.
It meant Kubica used an old engine for that race, as well as the following weekends in Italy and Singapore, where he stressed that he was unlikely to reach the end of the campaign on that same unit.
On Friday it was confirmed that Kubica’s FW42 has been equipped with a new ICE, Turbocharger and MGU-H.
As it is the fourth version of the campaign for those respective components he must start from the rear of the grid.
Kubica, who will leave Williams after 2019, will join local representative Daniil Kvyat at the back.
The other three Honda-powered cars – piloted by Max Verstappen, Alexander Albon and Pierre Gasly – have five-place grid penalties.
