Mercedes explains Hamilton's pre-race fright in Canada

Mercedes has opened up on what caused Lewis Hamilton's pre-race scare on Sunday in Montreal.

Prior to the start of the race, the Mercedes squad was spotted working on Hamilton's car, with reports filtering through that his power unit has sustained a leak, which was discovered on Saturday after qualifying.

Mercedes investigated the issue and found to root of the leak to be in the throttle actuator as the Silver Arrows battled to ratify the lack of hydraulic pressure.

Speaking on Mercedes' 'Pure Pit Wall' debrief, trackside engineering director Andrew Shovlin explained the situation.

"We dropped the floor and noticed there was some oil on the floor, so somewhere, there was a leak,” he said. “We could also see on the data we were losing some hydraulic pressure.

“The issue is that the cars are then in parc ferme overnight, we are not allowed to touch them or to investigate it further. That investigation moved to Sunday morning, when we are allowed to access the cars again.

“We had to take the power unit out. We traced the leak to the throttle actuator, and then we made a request to the FIA to change the throttle actuator and some of the associated hydraulics.

Shovlin added that it was 'pretty tight' in getting Hamilton's car ready for the start of the Grand Prix - one which Hamilton would eventually win. 

“So, that work was quite a big job though, there’s a lot to do within that. And it was pretty tight to get Lewis’s car back together for the start of the race.

“We are fairly happy we can do the work in that time. The issue when you have an unknown fault or a leak is you don’t know how long it is going to take you to find it.

“We were able to get the car back together. Where we were at risk was if we then fired up and we found another problem, if the engine had to come out again. That’s when we would’ve got short on time and perhaps not even been able to start the race.

"But it was a great job by all the mechanics involved, the car was back together in time and finished the race successfully.”

Replies (3)

Login to reply
  • Credit to the mechanics. I wish I could repair my car as easily and quickly as these talented guys.

    • + 0
    • Jun 13 2019 - 11:44
    • Not to mention change tyres! ;)

      • + 0
      • Jun 13 2019 - 17:10
  • What a shame, that would've avoided any post race controversy ;)

    • + 0
    • Jun 13 2019 - 11:50

AZ Azerbaijan Grand Prix

Local time 

AZAzerbaijan Grand Prix

Local time 

World Championship standings 2025

Show full world champion standings

Test calendar

See full test schedule

Related news

Give your opinion!

Will Bottas challenge Hamilton for the world championship in 2020?

Formula 1 Calendar - 2025

Date
Grand Prix
Circuit
-
Bahrain
14 - Mar 16 2025
Australia
21 - Mar 23 2025
China
4 - Apr 6 2025
Japan
11 - Apr 13 2025
Bahrain
18 - Apr 20 2025
Saudi Arabia
2 - May 4 2025
United States of America
16 - May 18 2025
Italy
23 - May 25 2025
Monaco
30 - Jun 1 2025
Spain
13 - Jun 15 2025
Canada
27 - Jun 29 2025
Austria
4 - Jul 6 2025
United Kingdom
25 - Jul 27 2025
Belgium
1 - Aug 3 2025
Hungary
29 - Aug 31 2025
Netherlands
5 - Sep 7 2025
Italy
19 - Sep 21 2025
Azerbaijan
3 - Oct 5 2025
Singapore
17 - Oct 19 2025
United States of America
24 - Oct 26 2025
Mexico
7 - Nov 9 2025
Brazil
21 - Nov 23 2025
United States of America
28 - Nov 30 2025
Qatar
5 - Dec 7 2025
United Arab Emirates
See full schedule

Formula 1 Calendar - 2025

Date
Grand Prix & Circuit
14 - Mar 16 2025
Australia Albert Park
21 - Mar 23 2025
4 - Apr 6 2025
11 - Apr 13 2025
18 - Apr 20 2025
Saudi Arabia Jeddah Street Circuit
2 - May 4 2025
United States of America Miami International Autodrome
16 - May 18 2025
23 - May 25 2025
Monaco Monte Carlo
30 - Jun 1 2025
13 - Jun 15 2025
27 - Jun 29 2025
Austria Red Bull Ring
4 - Jul 6 2025
United Kingdom Silverstone
25 - Jul 27 2025
1 - Aug 3 2025
Hungary Hungaroring
29 - Aug 31 2025
Netherlands Circuit Zandvoort
5 - Sep 7 2025
Italy Monza
19 - Sep 21 2025
Azerbaijan Baku City Circuit
3 - Oct 5 2025
17 - Oct 19 2025
United States of America Circuit of the Americas
24 - Oct 26 2025
7 - Nov 9 2025
Brazil Interlagos
21 - Nov 23 2025
United States of America Las Vegas Street Circuit
28 - Nov 30 2025
5 - Dec 7 2025
United Arab Emirates Yas Marina Circuit
See full schedule

Driver profile

  • Team Ferrari
  • Points 3,533
  • Podiums 132
  • Grand Prix 232
  • Country United Kingdom
  • Date of b. Jan 7 1985 (41)
  • Place of b. Tewin, United Kingdom
  • Weight 68 kg
  • Length 1.74 m
Show full profile

Team profile

Show full profile
show sidebar