TYRE PROBLEMS Lewis Hamilton said that improvements in the next race starts by dealing with the tyre problems. Image: AP / Hassan Ammar
Germany - Mercedes' two drivers have admitted the team is struggling with tyre problems in 2017.
After three races, Ferrari's Sebastian Vettel is leading the world championship, leaving triple back-to-back champions Mercedes to ponder the reasons.
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Quoted by the DPA news agency,Mercedes driver Lewis Hamilton said:"We have a bit to do at this test.
"We need to improve the car and our knowledge about the tyres so that we are in a better position in the next race."
The next race in Russia should at least be cooler, with Mercedes more comfortable in China than in hotter conditions like Melbourne and Bahrain.
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Valtteri Bottas said: "The softer compound has been more of a struggle with the tyres and also the hotter it is, more of a struggle,So it's definitely something for us to understand."