The Land Rover 42 D is a 2,993 cc, inline — six turbocharged diesel engine produced between 2022 and 2023. Part of Jaguar Land Rover's Ingenium engine family, it features high — pressure common — rail injection, a twin — scroll turbocharger, and variable valve timing. In its highest — output tune it delivers 294 kW (400 PS) and 770 Nm of torque, making it the most powerful diesel engine ever offered in a Land Rover production vehicle.
Fitted exclusively to the Range Rover (L460) a…
All production years (2022–2023) comply with Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/5684).
The Land Rover 42 D is a 2,993 cc inline-six turbocharged diesel engine developed for flagship luxury SUVs (2022–2023). It integrates twin-scroll turbocharging with Bosch CRS 4-25 common-rail injection to deliver exceptional low-end torque and smooth power delivery. Designed to meet Euro 6d-Final regulations, it balances extreme performance with emissions control through DPF and SCR systems.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,993 cc | |
Fuel type | Diesel | |
Configuration | Inline-6, DOHC, 24-valve | |
Aspiration | Turbocharged (twin-scroll) | |
Bore × stroke | 84.0 mm × 90.0 mm | |
Power output | 294 kW (400 PS) @ 4,000 rpm | |
Torque | 770 Nm @ 1,500–2,500 rpm | |
Fuel system | Bosch CRS 4-25 common-rail (up to 2,500 bar) | |
Emissions standard | Euro 6d-Final | |
Compression ratio | 15.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Honeywell twin-scroll turbo with integrated EGR routing | |
Timing system | Dual-chain (primary and secondary) | |
Oil type | Jaguar Land Rover STJLR.51.5004 (SAE 5W-30) | |
Dry weight | 205 kg |
The Land Rover 42 D was used exclusively in Land Rover's flagship Range Rover and Range Rover Sport platforms with longitudinal mounting. This engine received platform-specific tuning-optimized torque delivery in the Range Rover L460 and revised cooling management in the Sport L461-and from mid-2022 the L460 adopted the SCR-enhanced 42 D variant with updated ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 42 D's primary reliability risk is high-pressure fuel pump (HPFP) instability, with elevated incidence in mixed driving cycles. Internal Land Rover quality reports from 2023 noted a significant share of pre-mid-2022 engines requiring HPFP replacement before 100,000 km, while UK DVSA records link SCR system faults to infrequent AdBlue top-ups in city-driven vehicles. Stop-start operation and load variation increase thermal cycling, making fuel quality and maintenance adherence critical.
Analysis derived from Land Rover technical bulletins (2022-2023) and UK DVSA failure statistics (2023). 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 42 D offers exceptional performance and towing capability, but pre-mid-2022 models have known high-pressure fuel pump (HPFP) instability issues under mixed driving conditions. Later revisions (mid-2022+) show improved reliability with updated calibration and injector coatings. When maintained properly—using correct oil (5W-30 JLR STJLR.51.5004) and adhering to service intervals—these engines can reliably exceed 150,000 km.
Primary issues include high-pressure fuel pump instability from low fuel quality, AdBlue/SCR system faults, turbocharger bearing wear, and DPF clogging. These are documented in Land Rover service bulletins P310-0148 and P312-0056. Regular highway driving and using quality diesel significantly reduce failure risk.
The 42 D is used in the Range Rover (L460) and Range Rover Sport (L461). All models from 2022–2023 with the P530d diesel designation use this engine. All units comply with Euro 6d-Final emissions standards and require AdBlue refills.
Yes. The 42 D responds well to ECU remapping, with stage 1 tunes typically adding +35–50 kW. Stock internals support moderate increases, but supporting mods (intercooler, exhaust) are recommended for higher outputs. Tuning must preserve DPF and SCR functionality to remain road-legal in the UK.
In real-world conditions, expect 12.0–14.0 L/100km (20–24 mpg UK) in urban driving and 10.0–11.0 L/100km (26–28 mpg UK) on highways. Combined consumption is approximately 11.0 L/100km (26 mpg UK). DPF regeneration cycles may temporarily reduce efficiency.
Yes. The 42 D is an interference engine. If the timing chain fails or jumps, piston-to-valve contact can cause catastrophic internal damage. Chain maintenance and timely oil changes are essential to prevent tensioner failure and ensure long-term reliability.
Land Rover specifies 5W-30 synthetic oil meeting STJLR.51.5004 standard. This low-ash formulation protects the DPF and SCR system and ensures proper lubrication of the twin-chain timing system. Oil must be changed every 15,000 km or annually to maintain engine health.
Comprehensive technical documentation and regulatory references
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LAND-ROVER Official Site
Owner literature, service manuals, technical releases, and plant documentation.
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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