Doc 36 - P3 and Qualifying Scrutineering

This document, issued by the FIA Formula One Technical Delegate, Jo Bauer, details the technical checks performed on all cars during the third free practice session and before/during/after the qualifying session of the 2025 Abu Dhabi Grand Prix.

During the Third Free Practice Session:

All cars underwent comprehensive checks, including:

• Tyre Pressures: Starting pressures.
• Fuel System: Fuel pressure, fuel flow meter calibration checksum, instantaneous and partial load fuel mass flow, and fuel temperature.
• Engine & Cooling: Logged pressure within the engine cooling system, engine high rev limit bands, and plenum temperature.
• Power Unit Components: Exhaust fluid mass flow, IVT code and calibration checksums, IVT temperatures, ES state of charge on-track limits, lap energy release and recovery limits, MGU-K power limits, maximum MGU-K speed, maximum MGU-K torque, maximum MGU-H speed, MGU-K power model, and ES power model.
• Software & Control: Torque coordinator demands, torque control, torque sensor software version checks, torque sensor calibration checks, and SECU custom software versions.

Before the Qualifying Practice Session:

• Gear Ratios: Confirmed that all cars were using gear ratios declared to the FIA technical delegate for the 2025 Championship.
• Brake Discs: Thickness of brake discs was checked on all participating cars.

During the Qualifying Practice Session:

• Weight & Distribution: Car numbers 81, 44, 01, 63, 12, 14, 43, 31, 87, 27, and 05 were weighed, and their weight distribution was checked.
• Rear Wing: Uppermost rear wing element adjustable positions and minimum distance between adjacent rear wing sections were checked on car numbers 44, 87, and 23.
• Tyre Pressures: Starting pressures of all cars were checked.

After the Qualifying Practice Session:

• Weight: Car numbers 81, 04, 16, 01, 22, 63, 14, 31, 06, and 05 were weighed.
• Aerodynamic Components/Bodywork: Various components were checked on car numbers 14, 31, and 05 against specific TR Articles:
  • Floor Body (TR Article 3.5.1)
  • Floor Fences (TR Article 3.5.2)
  • Floor Edge Wing (TR Article 3.5.3)
  • Nose (TR Article 3.6.1)
  • Forward Chassis (TR Article 3.6.2)
  • Mid Chassis (TR Article 3.6.3)
  • Mirror Housing (TR Article 3.6.4)
  • Sidepod (TR Article 3.7.1)
  • Coke Panel (TR Article 3.7.2)
  • Engine Cover (TR Article 3.7.3)
  • Tail (TR Article 3.8.1)
  • Front Wing Profiles (TR Article 3.9.1)
  • Front Wing Endplate body (TR Article 3.9.2)
  • Front Wing Tip (TR Article 3.9.3)
  • Front Wing Diveplane (TR Article 3.9.4)
  • Front Wing Endplate (TR Article 3.9.5)
  • Rear Wing Profiles (TR Article 3.10.1)
  • Rear Wing Beam (TR Article 3.10.3)
  • Rear Wing Endplate Body (TR Article 3.10.4)
  • Rear Wing Tip (TR Article 3.10.5)
  • Rear Wing Endplate (TR Article 3.10.7)
• Rear Wing (Detailed): Uppermost rear wing element adjustable positions and minimum distance between adjacent rear wing sections were checked on car numbers 81, 04, 16, 01, 22, 63, 14, 31, 06, and 05.
• Fuel System: Fuel pressure, logged pressure within the engine cooling system, fuel flow meter calibration checksums, and instantaneous fuel mass flow were checked on all cars.
• Engine: Engine high rev limit bands were checked on all cars.
• Power Unit Components: Partial load fuel mass flow, fuel temperature, plenum temperature, exhaust fluid mass flow, IVT code and calibration checksums, IVT temperatures, ES state of charge on-track limits, lap energy release and recovery limits, MGU-K power limits, maximum MGU-K speed, maximum MGU-K torque, maximum MGU-H speed, MGU-K power model, and ES power model were checked on all cars.
• Software & Control: Torque coordinator demands, torque control, session type confirmation, Chassis FIA checksum, torque sensor software version checks, torque sensor calibration checks, rear brakes pressure control, steering wheel, and PCU dashboard display configuration were checked on all cars.
• Tyres: Tyres used by all drivers during the day's sessions were checked, and cold pressure was checked on car numbers 16 and 63.

SECU Software Versions Used During Qualifying:

All checked items were found to be in conformity with the 2025 FIA Formula One Technical Regulations.