Malaysian Grand Prix stewards have asked Red Bull to demonstrate that their car is safe to race after David Coulthard crashed in Friday's opening practice.

The Scot did not take part in second practice at Sepang after suffering his second major suspension failure in two weekends.

Australian team-mate Mark Webber did take part in both sessions and was 16th fastest in the afternoon.

The stewards issued a statement after meeting team boss Christian Horner and technical head Adrian Newey to say that they had asked Red Bull to provide a detailed report to the FIA technical delegate.

It said this must verify that "the suspension is such that the car should not be deemed 'of dangerous construction'" under article 2.3 of the technical regulations.

The article allows stewards to exclude a car if they deem its construction to be unsafe.

Horner was unconcerned, however, and expected the car to be cleared. He said after the meeting that the failure was in a brand new component fitted after Melbourne.

"It was a front right track rod that failed," he said. "You can see that the adhesives failed and it just looked like a human error.

"So we have absolutely no concerns about the car's safety for tomorrow."

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Reuters