From GMM
Mark Webber had to retire from second practice at Sepang on Friday with a suspected engine failure.
In the second session, Mark Webber ground to a halt in a gravel trap after a sudden loss of power, before Sebastian Vettel said on the radio that he suspected "something" wrong with his power steering.
After the RB6 was returned to the Red Bull garage with gravel trap stones stuck to its tyres, team members were spotted mopping up puddles of leaked oil shortly afterwards.
Earlier Sebastian Vettel, had another wheel problem during first practice in Malaysia, returning slowly to the pits at one stage after reporting that his Red Bull behaved "as if the brakes (were) stuck". And Webber's sister car returned to the pits at one point with an apparently overheating car, as the bodywork appeared burned.
Mark Webber had to retire from second practice at Sepang on Friday with a suspected engine failure.
In the second session, Mark Webber ground to a halt in a gravel trap after a sudden loss of power, before Sebastian Vettel said on the radio that he suspected "something" wrong with his power steering.
After the RB6 was returned to the Red Bull garage with gravel trap stones stuck to its tyres, team members were spotted mopping up puddles of leaked oil shortly afterwards.
Earlier Sebastian Vettel, had another wheel problem during first practice in Malaysia, returning slowly to the pits at one stage after reporting that his Red Bull behaved "as if the brakes (were) stuck". And Webber's sister car returned to the pits at one point with an apparently overheating car, as the bodywork appeared burned.