The Land Rover 37 L is a 2,996 cc, inline — six turbocharged petrol engine produced between 2023 and 2025 as part of JLR's Ingenium engine family. It features a high — pressure direct fuel injection system (up to 350 bar), twin — scroll turbocharger, and DOHC 24 — valve configuration. In standard tune it delivers 294 kW (400 PS) with 550 Nm of torque available from 2,000 rpm, providing strong performance for luxury and high — speed driving applications.
Fitted to the Range Rover (…
All production years 2023–2025 meet Euro 6d emissions standards .
The Land Rover 37 L is a 2,996 cc inline-six turbocharged petrol engine designed for full-size luxury SUVs (2023–2025). It combines high-pressure direct injection with a twin-scroll turbocharger to deliver smooth power delivery and robust mid-range torque. Engineered to meet Euro 6d standards, it balances refinement, performance, and real-world emissions compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,996 cc | |
Fuel type | Petrol | |
Configuration | Inline-6, DOHC, 24-valve | |
Aspiration | Turbocharged (twin-scroll) | |
Bore × stroke | 82.0 mm × 94.6 mm | |
Power output | 294 kW (400 PS) @ 5,500 rpm | |
Torque | 550 Nm @ 2,000–4,500 rpm | |
Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Single twin-scroll turbo (Garrett) | |
Timing system | Triple chain (wet sump, front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 228 kg |
The Land Rover 37 L was used across Land Rover's L460/L461 platforms with longitudinal mounting. This engine received platform-specific calibrations-exhaust tuning in the Range Rover and intake routing in the Range Rover Sport-and from 2025 the facelifted L461 adopted revised ECU mapping and actuator control, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The 37 L's primary reliability risk is turbocharger wastegate actuator sticking in early units (2023–2024), with elevated incidence in mixed urban/highway use. JLR internal field reports from 2024–2025 indicated a significant share of pre-2025 units required actuator replacement before 100,000 km, while VCA MOT data links GPF clogging to frequent short trips. Extended idling and poor oil quality exacerbate turbo and emissions system stress, making service interval adherence and correct oil specification critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The 37 L offers strong mid-range torque and excellent refinement, but early models (2023–2024) are prone to turbo actuator issues under mixed driving. Later revisions (2025+) improved actuator durability through hardware and software updates. Well-maintained engines with regular oil changes and proper driving cycles can exceed 200,000 km. Using correct JLR-specified oil is essential for longevity.
The most frequent issues are turbo wastegate actuator sticking, GPF clogging, and intake carbon buildup. Oil leaks from the valve cover and CCV system are also common. These are documented in JLR service bulletins and field reports. Regular maintenance and extended driving help prevent GPF and cEGR issues.
The 37 L is used in the Range Rover (L460, 2023–2025) and Range Rover Sport (L461, 2023–2025) as the P400 petrol. All models are Euro 6d compliant and use GPF technology. It is not shared with Jaguar due to platform-specific tuning and longitudinal mounting constraints.
Aftermarket ECU tuning is common on the 37L platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In real-world driving, the 37 L achieves approximately 11.0–13.5 L/100km (26–21 mpg UK) in mixed conditions. Highway driving can reach 10.0 L/100km (~28 mpg UK), while city use may exceed 15.0 L/100km (~19 mpg UK) due to stop-start cycles and GPF regeneration.
Yes. The 37 L is an interference engine. If the timing chain fails, pistons can contact valves, resulting in catastrophic internal damage. The triple-chain system is generally robust, but neglected oil changes increase risk. Any timing-related rattles should be investigated immediately.
JLR specifies SAE 5W-30 oil meeting STJLR.51.5116 specification. This low-ash, mid-SAPS oil is critical for GPF and turbo longevity. Oil must be changed every 16,000 km or 12 months. Using incorrect oil can lead to GPF blockage and actuator failure.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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