Renault broke the F1 curfew last night and changed Jolyon Palmer's chassis as a precautionary measure for FP3 today.
Renault's initiative was the first of two exceptions permitted during the season related to transgressing curfew rules, with the team receiving no action from the stewards.
The French outfit justified the change by the fact that Palmer's car 'received a lot of heat caused by an exhaust leak yesterday.'
Due to the changing of the survival cell, Palmer’s car was re-scrutineered before the third free practice session.
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