Lewis Hamilton is set to take a five-place grid penalty for Sunday's race at Austria's Red Bull Ring circuit.
Mercedes were forced to change the Briton's gearbox ahead of the event - and, as the previous unit had not completed six consecutive events, Mercedes and Hamilton will inevitably be penalised.
Hamilton fastest ahead of Vettel after FP2 completed.
No free to air TV coverage for this event
We will get the 1 hour highlights on 1 at 9:30 on Monday