Mercedes feared "instant kill" gearbox issue for Bottas

Valtteri Bottas says he managed to "dodge many bullets" en route to Austrian Grand Prix victory as Mercedes feared an early gearbox issue would turn into an "instant kill".

Mercedes feared "instant kill" gearbox issue for Bottas

Bottas led all 71 laps of the race in Austria to score victory in the 2020 season opener, but faced race-long pressure from Mercedes teammate Lewis Hamilton, as well as managing recurring gearbox problems.

Mercedes' engineers were heard regularly warning Hamilton and Bottas to stay off the kerbs during the race, with the issue emerging early on.

"The situation was pretty serious, right away from the start," Mercedes team principal Toto Wolff said when asked by Motorsport.com about the issues.

"We saw it started with issues on Valtteri's car, but it was something that can be an instant kill. Then it started on Lewis's car. We didn't really know what it was.

"We know that it was somehow linked to vibration and agitation of the car. That is why we advised them very early on to keep off the kerbs.

"At the certain stage, it looked like we would not finish the race with both cars. So we were trying to really cruise home."

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Bottas felt comfortable in the lead until the late safety cars bunched the field, allowing the likes of Alexander Albon, Charles Leclerc and Lando Norris to all apply pressure from behind.

"Winning a Formula 1 grand prix is never easy, but today definitely didn't come easy at all," Bottas said.

"In the first stint, obviously Lewis lost a bit of time getting through the Red Bulls, but there was quite a bit of margin so the first stint wasn't actually that bad.

"I could really control and really make sure that we made it to the target stop lap, and try and do the right things with the tyres and do the right thing with the car.

"The second stint, there was never like massive pressure, because I was in front and I could really make sure I could make it to the end. There were all these variables in the race.

"We had these issues with some sensors that were getting damaged by the vibration of the pretty harsh kerbs here, so I had to avoid the kerbing, which obviously costs quite a bit of lap time.

"When you're in the lead, one safety car after another, but the last one I was like 'come on, again?', because in the lead you just want things to be constant and trouble-free.

"There were many variables. I managed to dodge many bullets today and get the win."

Bottas was able to perfect the race restart each time to keep Hamilton at bay behind, but admitted he ran close to the safety car in the final return to green flag running.

"I think I'm starting to master the restarts on this track because I had so many today," Bottas said.

"But you always try to do something different each time.

"I think the last one was a bit on the limit with the safety car line one, crossing with the safety car, but otherwise really good."

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