Bottas twice obeyed radio instructions during Sunday’s Bahrain Grand Prix to let the faster Hamilton through to chase eventual winner and championship leader Vettel.
“We don’t like that, at all,” said Wolff. “It’s not what we have done in the last couple of years but the situation is different now so it needs a proper analysis of what it means and where we are.”
Mercedes have never had a designated No1 driver, and Wolff said the desire was to give both men equal opportunity at the start of the race.
The team won all but two races last season but are no longer dominant in a championship that has for the past three years been an internal battle. Vettel has now won two of three races and is seven points clear of Hamilton.
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Bottas, who joined Mercedes in January as replacement for now-retired world champion Nico Rosberg, is 23 adrift of his team-mate, and Wolff said the situation at Ferrari had to be taken into consideration. “That is the interesting question that we need to analyse at the moment,” he added.
The disparity between the Mercedes pairing is more marked than before, with Bottas yet to win a race and Hamilton surpassed only by Michael Schumacher in the all-time lists with 54 victories.
Bahrain was Bottas’s first career pole position, whereas Hamilton has 63 and could sail past Schumacher’s record of 68 later in the year.
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The Finn is also still settling into his new surroundings, whereas Hamilton has been there since 2013 and is the sport’s biggest personality.
Hamilton had been on pole for six races in a row until Bottas broke the sequence in Bahrain and Wolff said Mercedes appeared to be still slightly ahead of Ferrari on single lap pace.
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“In the race it’s pretty evenly matched,” he said. “That’s going to be a close one for the next couple of races.”