Did you know that every Formula 1 car is equipped with its own built-in fire extinguisher? If you look closely, you’ll even notice a single-letter marking on each car related to this system. Today, let’s dive into how the F1 fire suppression system works, continuing our bite-sized “F1 Mini Facts” series.
Unlike a handheld extinguisher, the F1 fire system is an integrated pipeline network, seamlessly built into the car. It can cost up to £7,000–8,000. The extinguisher bottle is usually placed within the monocoque, the strongest part of the chassis, and is custom-designed to balance both space and weight distribution. Placement varies by team—it might be beside the driver or under their knees. The bottle itself is made of carbon fiber, lightweight at just a few hundred grams, yet resilient enough to survive heavy crashes without damage.
Inside, the extinguisher uses a non-water, non-conductive, non-corrosive chemical agent. Unlike older foam-based systems that could damage sensitive electronics, this protects the car while effectively suppressing flames. FIA regulations also require that the nozzles be split between the cockpit and engine bay, with at least 60% of the extinguishing agent directed toward the cockpit to prioritize driver safety. Once activated, the system must release 95% of its contents within 10–30 seconds to be effective.
How is it triggered? On the engine cover or side of the car, you’ll often spot a bold red “E” marking, which stands for Emergency and Extinguisher. Next to it is a pull cable—this external switch is for marshals to quickly activate the system during an accident. Drivers also have an internal button inside the cockpit for immediate access.
The fire system even has its own dedicated power supply, ensuring it won’t fail under extreme conditions. When activated, the signal is sent to a pressurized canister, instantly releasing the extinguishing agent through the pipes. Lower formula cars use similar systems, and they’ve even been accidentally triggered—such as in the 2020 F2 race when Mick Schumacher’s car set it off after debris hit the side switch.
The “E” switch also doubles as a master safety cutoff, shutting down all high-voltage systems when pulled. With modern hybrid F1 cars running at up to 1,000 volts, this prevents fatal risks to marshals. Cars also feature a high-voltage indicator light to signal whether the car is live. You may also notice an “N” button, which puts the car into neutral so marshals can push it safely.
Of course, the extinguisher alone cannot handle massive fires like Romain Grosjean’s 2020 crash, which was caused by a ruptured fuel line. But its purpose is to suppress flames long enough to give drivers a critical window to escape. Combined with driver training for rapid cockpit exit and their mandatory fireproof gear, the system significantly increases survival chances in emergencies.
That’s a quick look into one of F1’s most vital—but often overlooked—safety features: the fire suppression system.
🛒 Shop Now & Choose your F1 Model！
