Valtteri Bottas, Mercedes, Autodromo Hermanos Rodriguez, 2018

Hamilton unlikely to suffer a repeat of Bottas’s “very unusual” engine failure

2018 Mexican Grand Prix

Posted on

| Written by and

Lewis Hamilton’s Mercedes power unit should not be at risk from the same failure which stopped his team mate Valtteri Bottas in practice yesterday, according to Toto Wolff.

A hydraulic failure halted Bottas shortly before the end of the final practice session.

“We’ve just heard that Valtteri’s reliability issue shouldn’t affect Lewis’s engine,” Wolff said yesterday. Hamilton will win the world championship if he finishes at least seventh in today’s race.

“Nevertheless it is a reminder how fragile the situation is and how much everybody is pushing in order to extract performance.

“Reliability will continue to play a crucial role in this championship and that’s why tomorrow it’s about finding the right focus in finishing the race with the best possible performance.”

Wolff said Bottas’s engine will have to go back to the team’s base to be examined because of the unusual nature of the failure.

“The failure we have seen on Valtteri’s engine is a failure we haven’t seen for many years. You can call it a very unusual failure with mileage where it shouldn’t have happened. So we need to investigate that. The engine is going to go back to England.

“The [High Performance Powertrain] guys and mechanics have done a really incredible job first in getting the engine onto the car in time and then calibrating it in a way so it can run here. That was not trivial. They kind of got it together, Valtteri said he couldn’t feel a big difference, that’s really making me very happy.”

Having struggled on Friday, Mercedes were much more competitive on Saturday, which Wolff said was partly due to overnight changes to their power unit.

“The main areas of improved performance was that we got the power unit to work happier in the ambient. And on the chassis side everybody was lacking grip yesterday and I think we found the right tools to tune the car so the drivers are happier.”

Advert | Become a RaceFans supporter and go ad-free

2018 F1 season

Browse all 2018 F1 season articles

Author information

Dieter Rencken
Dieter Rencken has held full FIA Formula 1 media accreditation since 2000, during which period he has reported from over 300 grands prix, plus...
Keith Collantine
Lifelong motor sport fan Keith set up RaceFans in 2005 - when it was originally called F1 Fanatic. Having previously worked as a motoring...

Got a potential story, tip or enquiry? Find out more about RaceFans and contact us here.

4 comments on “Hamilton unlikely to suffer a repeat of Bottas’s “very unusual” engine failure”

  1. Bottas failure shouldnt have happened so it shouldnt happen to Hamilton either, Meanwhile we will look into why it happened back at home… ok.

  2. Bottas’s sort of failure shouldn’t happen on Hamilton’s car. But Hamilton could’ve any other engine related potential failure which wouldn’t related to Bottas’s. Oh…

  3. Shouldn’t this engine change result in grid penalties?

    1. @drycrust – they’ve swapped back to an engine from his existing pool. Remember that engine penalties occur when the PU component used exceeds 3/2 based on component, not when a swap is made.

Comments are closed.