Red Bull Ring DTM: Ekstrom pips Rockenfeller to wet pole for Audi

While the day's schedule remains under threat from heavy rain in Austria, the 20-minute qualifying session was run as scheduled, with rain having stopped by the time it started.

Rivers continued to run across the track and it was a conservative start, with Mike Rockenfeller regrouping from an early spin to set the first representative time, a 1m46.830s.

He led the field into the 1m44s bracket, trading times with stablemate Ekstrom, who then entered the 1m43s, with Rockenfeller the first to record a 1m42s lap.

Rockenfeller's 1m42.859s was eclipsed by Ekstrom with a 1m42.397s at the halfway mark, and while light rain returned in the closing minutes, Rockenfeller found eight tenths, lowering the benchmark to 1m42.015s.

That looked like it would be enough, however Ekstrom improved after the chequered flag, taking top spot by just 0.005 seconds.

Ekstrom's 21st career DTM pole is his first since the 2012 season opener at Hockenheim.

Gary Paffett will line up third for Mercedes, finishing the session 0.140s behind the Audi pair and among the drivers left to rue traffic.

"There was a bit of a river out of Turn 3, into Turn 4, and a bit of a river at Turn 7," he said of the conditions.

"We should've been on pole.

"For half of the session I could only do one sector per lap because the guy in front of me kept going off track and coming back to me."

New championship leader Pascal Wehrlein had a late off and was fourth, ahead of Robert Wickens and Saturday winner Edoardo Mortara.

Audi and Mercedes both finished the session with five cars inside a top 10 completed by Timo Scheider, Christian Vietoris, Paul di Resta and Adrien Tambay.

Martin Tomczyk was the best of the BMWs in 14th, one spot ahead of Maxime Martin, while last year's Spielberg winner Marco Wittmann took to the Turn 3 gravel on his way to 21st.

Forced out of Saturday's race with a gear selection problem that meant he dropped from first to fourth in the standings, Jamie Green will line up 17th.

QUALIFYING TIMES: