The Land Rover 30DDTX is a 2,993 cc, inline — six turbocharged diesel engine produced between 2020 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 standard tune it delivers 184 kW (250 PS) and 570 Nm of torque, with overboost functionality temporarily increasing torque to 600 Nm for improved overtaking response.
Fitted to models including the Range…
All production years (2020–2023) comply with Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/5682).
The Land Rover 30DDTX is a 2,993 cc inline-six turbocharged diesel engine developed for full-size luxury SUVs (2020–2023). It integrates twin-scroll turbocharging with Bosch CRS 4-25 common-rail injection to deliver smooth, linear power delivery and strong low-end torque. Designed to meet Euro 6d-Final regulations, it balances refinement 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 | 184 kW (250 PS) @ 4,000 rpm | |
Torque | 570 Nm @ 1,750–2,500 rpm (600 Nm overboost) | |
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 | 198 kg |
The Land Rover 30DDTX was used across Land Rover's Velar/Discovery platforms with longitudinal mounting and adapted for the Range Rover's premium architecture. This engine received platform-specific tuning-optimized torque curves in the Velar and revised cooling management in the Discovery-and from 2022 the Range Rover L460 adopted the SCR-enhanced 30DDTX variant with updated ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
The 30DDTX's primary reliability risk is EGR cooler cracking, with elevated incidence in mixed driving cycles. Internal Land Rover quality reports from 2021 noted a significant share of pre-2022 engines requiring EGR cooler 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 coolant maintenance and driving pattern adherence critical.
Analysis derived from Land Rover technical bulletins (2020-2023) and UK DVSA failure statistics (2021-2023). Repair procedures should follow manufacturer guidelines.
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The 30DDTX offers strong performance and towing capability, but pre-2022 models have known EGR cooler cracking issues under mixed driving conditions. Later revisions (2022+) show improved reliability with updated casting and coolant management. 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 EGR cooler cracking from thermal cycling, AdBlue/SCR system faults, turbocharger bearing wear, and high-pressure injector wear. These are documented in Land Rover service bulletins P313-0022 and P312-0056. Regular highway driving and using quality diesel significantly reduce failure risk.
The 30DDTX is used in the Range Rover Velar (L560), Discovery (L462), and Range Rover (L460). All models from 2020–2023 with the P300d diesel designation use this engine. All units comply with Euro 6d-Final emissions standards and require AdBlue refills.
Yes. The 30DDTX responds well to ECU remapping, with stage 1 tunes typically adding +30–45 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 9.5–11.0 L/100km (26–30 mpg UK) in urban driving and 7.8–8.6 L/100km (33–36 mpg UK) on highways. Combined consumption is approximately 8.8 L/100km (32 mpg UK). DPF regeneration cycles may temporarily reduce efficiency.
Yes. The 30DDTX 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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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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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