A truck driver notices smoke and flames coming from a trailer tire in the rearview mirror on the motorway. What is the correct sequence of emergency actions?

1. Slow down smoothly, stop on the hard shoulder/emergency lane away from buildings/tunnels, notify emergency services (122), attempt to extinguish using short powder bursts from an angle (avoiding wheel explosion trajectory), and if safe and uncontainable, uncouple the tractor to save the motor unit
2. Accelerate to 100 km/h to blow out the flames with air speed
3. Stop in the fast overtaking lane immediately and pour water from a drinking bottle on the burning rubber
4. Drive the truck into an enclosed petrol station forecourt