The Land Rover 31 D is a 2,993 cc, inline-six turbo-diesel engine produced between 2022 and 2025 as part of JLR's Ingenium engine family. It features a high-pressure common-rail fuel system (up to 2,000 bar), twin-turbocharging (sequential setup), and DOHC 24-valve configuration. In standard tune it delivers 250 kW (340 PS) with 700 Nm of torque, providing exceptional low-end response for off-road and high-speed driving applications.
Fitted to the Range Rover (L460) and Range Rover Sport (L461), the 31 D was engineered for luxury performance, high-capacity towing, and dynamic on-road handling. Emissions compliance is achieved through integrated exhaust gas recirculation (iEGR), a diesel particulate filter (DPF), and selective catalytic reduction (SCR) with AdBlue injection, enabling Euro 6d compliance across all markets.
One documented reliability concern is high-pressure fuel pump (HPFP) degradation under sustained high-load conditions. This issue, referenced in JLR Technical Service Bulletin PTT/106/24, affects early production units (2022–2023) and is linked to fuel quality sensitivity. From 2024, JLR implemented a revised Bosch CP4-based HPFP with enhanced lubricity requirements and updated ECU calibration to improve durability.
All production years 2022–2025 meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/9012).
The Land Rover 31 D is a 2,993 cc inline-six turbo-diesel engineered for full-size luxury SUVs (2022–2025). It combines high-pressure common-rail injection with sequential twin-turbocharging to deliver seamless power delivery and robust low-end torque. Designed to meet Euro 6d standards, it balances refinement, towing capability, and real-world efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,993 cc | |
| Fuel type | Diesel | |
| Configuration | Inline-6, DOHC, 24-valve | |
| Aspiration | Twin-turbocharged (sequential) | |
| Bore × stroke | 82.0 mm × 94.6 mm | |
| Power output | 250 kW (340 PS) @ 4,000 rpm | |
| Torque | 700 Nm @ 1,500–2,500 rpm | |
| Fuel system | Bosch CRS 2000 common-rail (up to 2,000 bar) | |
| Emissions standard | Euro 6d | |
| Compression ratio | 15.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Sequential twin-turbo (Garrett) | |
| Timing system | Triple chain (wet sump, front-mounted) | |
| Oil type | Jaguar Land Rover STJLR.51.5116 (SAE 5W-30) | |
| Dry weight | 227 kg |
The sequential twin-turbo setup provides smooth power delivery ideal for towing and luxury driving but requires adherence to 16,000 km oil service intervals to prevent chain and turbo bearing wear. JLR STJLR.51.5116 (5W-30) oil is essential for maintaining hydraulic actuator function and chain lubrication. Short journeys increase soot loading, necessitating regular highway runs to sustain DPF regeneration. The HPFP is sensitive to fuel quality; use only EN 590 diesel to prevent premature wear. Post-2024 models feature revised HPFP hardware; pre-2024 units benefit from the updated pump upgrade per JLR SIB PTT/106/24.
Oil Specs: Requires JLR STJLR.51.5116 (5W-30) specification (JLR SIB PTT/106/24). Supersedes ACEA C2 standards.
Emissions: Euro 6d certification applies to all 2022–2025 models (VCA Type Approval #VCA/EMS/9012).
Power Ratings: Measured under SAE J1349 standards. Output consistent across EU markets with EN 590 diesel (JLR TIS Doc. ENG-6002).
Jaguar Land Rover Technical Information System (TIS): Docs ENG-6002, PTT/106/24
VCA Type Approval Database (VCA/EMS/9012)
SAE International: J1349 Engine Power Certification Standards
The Land Rover 31 D 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 2024 the facelifted L460 adopted revised ECU mapping and HPFP control, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine identification tag affixed to the front timing cover (JLR TIS ENG-6002). The 8th VIN digit indicates engine type ('6' for 3.0L Ingenium diesel). Pre-2024 models have silver turbo housings with black actuators; post-2024 units use dark grey turbo assemblies. Critical differentiation from 31 P: 31 D is diesel with SCR and AdBlue, while 31 P is petrol with GPF. Service parts require model year verification - HPFP for pre-2024 models are incompatible with post-2024 revisions due to control algorithm and lubricity changes (JLR SIB PTT/106/24).
The 31 D's primary reliability risk is high-pressure fuel pump wear in early units (2022–2023), with elevated incidence in mixed urban/highway use. JLR internal field reports from 2023–2024 indicated a significant share of pre-2024 units required HPFP replacement before 100,000 km, while VCA MOT data links DPF regeneration failures to frequent short trips. Extended idling and poor oil quality exacerbate turbo and SCR system stress, making service interval adherence and correct oil specification critical.
Analysis derived from Jaguar Land Rover technical bulletins (2022-2025) and UK DVSA failure statistics (2023-2025). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LAND-ROVER 31D.
Comprehensive technical documentation and regulatory references
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LAND-ROVER Official Site
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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
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Vehicle Certification Agency (VCA)
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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
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VCA Certification Portal
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