Red Bull driver Mark Webber has been given a reprimand for leaving the track twice during his in-lap at the end of Q3.
While stewards decided to take no action against Webber after claims that he impeded Marussia driver Timo Glock during Q1, he was unable to offer them "justifiable reason for deliberately leaving the track."
This was in breach of Article 20.2 of the FIA F1 Sporting Regulations, which state that "Drivers must use the track at all times. For the avoidance of doubt the white lines defining the track edges are considered to be part of the track but the kerbs are not.
"A driver will be judged to have left the track if no part of the car remains in contact with the track.
"Should a car leave the track the driver may rejoin, however, this may only be done when it is safe to do so and without gaining any advantage. A driver may not deliberately leave the track without any justifiable reason."
The final sentence of that rule was added to the Sporting Regulations at the start of the 2012 season.
The stewards, which include Audi Le Mans star Allan McNish, offered a detailed explanation of why Webber was not deemed to have impeded Glock after emerging from the pits while the German was on a flying lap.
"On the lap of the alleged impeding, GLO braked at T1 earlier than his previous best lap in that session," said the stewards report.
"By the apex he was 0.105 econds slower. At the apex of T3 where the alleged impeding occurred (where WEB was in front of GLO) GLO was 0.090 seconds slower than his previous best.
"GLO overtook WEB at the exit to T3 on the racing line, braking into T5 earlier than his previous best lap and was now 0.198 seconds slower.
"At the end of Sector 1 (ie after T6) GLO's delta time over his previous best was 0.380s seconds slower.
"Accordingly from the telemetry it is concluded there was no time lost whilst behind WEB - the time loss was before and after the alleged impeding."
The stewards added that Webber had no way to see Glock on track when he left the pitlane and that a review of the GPS system showed that Red Bull did not have the information needed to warn the Australian about him.
Marussia and Glock did not present any evidence to the stewards.