PT204 · AJ20P4 · AJ200P
Ingenium 2.0Turbo Petrol
Compact, quick to respond and used across Jaguar and Land Rover, the Ingenium four-cylinder pairs direct injection with a twin-scroll turbo. The familiar P250 and P300 badges describe different calibrations of the same 2.0-litre petrol architecture.
Specifications at a glance
Engine & construction
- Codes
- PT204 / AJ20P4 (AJ200P)
- Layout
- Inline-four · petrol
- Block / head
- Aluminium / aluminium
- Bore × stroke
- 83.0 × 92.3 mm
- Compression
- 10.5:1 P250 · 9.5:1 P300
Air, fuel & valve gear
- Boost
- Twin-scroll turbocharger
- Fuel system
- Direct injection · up to 200 bar
- Valve gear
- DOHC · 16 valves
- Cam drive
- Timing chain
- Intake valves
- Electrohydraulic variable lift
Power & torque
| Version | Horsepower | Torque · lb-ft |
|---|---|---|
| Early Evoque / Discovery Sport Si4 | 237 / 286 hp | 251 / 295 |
| P250 / 25t | 246–247 hp | 269 |
| P300 / 30t | 296 hp | 295 |
| P400e plug-in hybrid | 398 hp combined | 472 combined |
P250 is published at 246 or 247 hp depending on model/year. Earlier transverse Si4 ratings differ. P400e figures include the electric motor; the petrol engine alone is 296 hp. Badge numbers are not U.S. horsepower ratings.
Vehicles & model years
| Vehicle · version | Chassis · platform | Model years | hp | Torque · lb-ft |
|---|---|---|---|---|
| Jaguar XE · 25t / P250 | X760 · D7a | 2018–2020 | 247 | 269 |
| Jaguar XE · 30t / P300 | X760 · D7a | 2018–2020 | 296 | 295 |
| Jaguar XF · P250 | X260 · D7a | 2018–2024 | 246–247 | 269 |
| Jaguar XF · P300 | X260 · D7a | 2018–2024 | 296 | 295 |
| Jaguar F-PACE · P250 | X761 · D7a | 2018–2024 | 246–247 | 269 |
| Jaguar F-PACE · P300 / 300 Sport | X761 · D7a | 2018–2020 | 296 | 295 |
| Jaguar F-TYPE · P300 | X152 | 2018–2021 | 296 | 295 |
| Range Rover Velar · P250 | L560 · D7a | 2018–2025 | 247 | 269 |
| Defender 90 / 110 · P300 | L663 · D7x | 2020–2024 | 296 | 295 |
| Jaguar E-PACE · P250 | X540 · D8 → PTA¹ | 2018–2024 | 246–247 | 269 |
| Jaguar E-PACE · P300 | X540 · D8 | 2018–2020 | 296 | 295 |
| Jaguar E-PACE · 300 Sport MHEV | X540 · PTA | 2021–2022 | 296 | 295 |
| Range Rover Evoque · Si4 | L538 · D8 | 2018–2019 | 237 / 286 | 251 / 295 |
| Range Rover Evoque · P250 | L551 · PTA | 2020–2025 | 246–247 | 269 |
| Discovery Sport · Si4 | L550 · D8 | 2018–2019 | 237 / 286 | 251 / 295 |
| Discovery Sport · P250 | L550 · PTA | 2020–2024 | 246–247 | 269 |
| Range Rover Sport · P400e PHEV | L494 · D7u | 2020–2022 | 398² | 472² |
| Range Rover · P400e PHEV | L405 · D7u | 2020–2022 | 398² | 472² |
U.S. and Canadian engine-equipped versions; availability varies by trim and market. ¹ E-PACE moved from D8 to PTA for 2021; Discovery Sport moved to PTA for 2020. Early Si4 ratings differ from P250/P300. Slash-separated horsepower and torque values match in order. ² P400e figures are combined engine-and-motor output.
Engine controllers
| Controller | Processor | Applications |
|---|---|---|
| Bosch MED17.9.9 | Infineon TC1793 | Ingenium 2.0 petrol applications |
Earlier Ford-derived JLR 2.0 turbo engines use different controllers. Read the Bosch hardware number, JLR part number and software identification from the vehicle; a P250/P300 badge alone cannot identify a compatible ECU or calibration.
Common issues & sensible maintenance
- Coolant leaks. Inspect hoses, joints and coolant residue. JLR documented leaks from a coolant outlet hose on early PT204 applications; investigate falling coolant before overheating occurs.
- Coolant pump faults. A high fan speed or P26CB/P2B61 fault can indicate a pump-control problem. Check the pump and its wiring rather than replacing parts from the code alone.
- Harness damage. JLR documented coolant-pump wiring damage affecting a shared 5 V reference. Several sensor faults together can have one electrical cause.
- Oil and timing drive. Use the exact JLR oil approval and service schedule for the VIN. Short trips, heat and sustained load justify reviewing severe-use servicing; investigate persistent chain rattle or cam-correlation faults.
- Misfires and rough running. Check plugs, coils, fuel pressure and intake leaks. Inspect direct-injection intake deposits when symptoms warrant cleaning; a fixed cleaning interval is not an OEM requirement.
Keep the basics right. Monitor coolant, keep oil servicing appropriate to use, and diagnose faults early. Some 48 V variants have VIN-specific charging-system recalls; check the vehicle rather than assuming every PT204 has the same hybrid equipment.
References
Specifications vary by calibration and model year. Service bulletins document faults on identified applications; they do not establish a failure rate for every engine.
