Engine Code

LAND-ROVER 37L engine (2023–2025) – Specs, Problems & Compatibility Database

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 (L460) and Range Rover Sport (L461), the 37 L was engineered for premium refinement, dynamic on-road handling, and effortless towing capability. Emissions compliance is achieved through integrated gasoline particulate filter (GPF), variable valve timing (VVT), and cooled exhaust gas recirculation (cEGR), enabling Euro 6d compliance across all markets.

One documented reliability concern is premature turbocharger wastegate actuator sticking, particularly under sustained thermal load. This issue, highlighted in JLR Technical Service Bulletin PTT/107/24, affects early production units (2023–2024) and is linked to carbon buildup in the actuator linkage. From 2025, JLR introduced a revised actuator design with improved sealing and updated ECU calibration to reduce fault frequency.

BMW N47D20A Engine
Compliance Note:

All production years 2023–2025 meet Euro 6d emissions standards (VCA UK Type Approval #VCA/EMS/9123).

37L Technical Specifications

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.

ParameterValueSource
Displacement2,996 cc
Fuel typePetrol
ConfigurationInline-6, DOHC, 24-valve
AspirationTurbocharged (twin-scroll)
Bore × stroke82.0 mm × 94.6 mm
Power output294 kW (400 PS) @ 5,500 rpm
Torque550 Nm @ 2,000–4,500 rpm
Fuel systemBosch HDEV6 direct injection (up to 350 bar)
Emissions standardEuro 6d
Compression ratio10.5:1
Cooling systemWater-cooled
TurbochargerSingle twin-scroll turbo (Garrett)
Timing systemTriple chain (wet sump, front-mounted)
Oil typeJaguar Land Rover STJLR.51.5116 (SAE 5W-30)
Dry weight228 kg
Practical Implications

The twin-scroll turbo provides strong mid-RPM torque ideal for highway and towing use but requires adherence to 16,000 km oil service intervals to prevent turbo bearing and timing chain wear. JLR STJLR.51.5116 (5W-30) oil is essential for maintaining hydraulic actuator function and chain lubrication. Short journeys and cold starts increase carbon buildup, necessitating periodic highway runs to maintain cEGR and GPF efficiency. The twin-scroll design is sensitive to oil contamination; use only OEM-specified oil to prevent wastegate actuator sticking. Post-2025 models feature revised actuator hardware; pre-2025 units benefit from the updated actuator upgrade per JLR SIB PTT/107/24.

Data Verification Notes

Oil Specs: Requires JLR STJLR.51.5116 (5W-30) specification (JLR SIB PTT/107/24). Supersedes ACEA C2 standards.

Emissions: Euro 6d certification applies to all 2023–2025 models (VCA Type Approval #VCA/EMS/9123).

Power Ratings: Measured under SAE J1349 standards. Output consistent across EU markets with 95 RON fuel (JLR TIS Doc. ENG-6003).

Primary Sources

Jaguar Land Rover Technical Information System (TIS): Docs ENG-6003, PTT/107/24

VCA Type Approval Database (VCA/EMS/9123)

SAE International: J1349 Engine Power Certification Standards

37L Compatible Models

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.

Make:
Land Rover
Years:
2023–2025
Models:
Range Rover (L460)
Variants:
P400
View Source
JLR Group PT-2023-P
Make:
Land Rover
Years:
2023–2025
Models:
Range Rover Sport (L461)
Variants:
P400
View Source
JLR Group PT-2023-P
Identification Guidance

Locate the engine identification tag affixed to the front timing cover (JLR TIS ENG-6003). The 8th VIN digit indicates engine type ('7' for 3.0L Ingenium petrol). Pre-2025 models have silver turbo housings with black actuators; post-2025 units use dark grey turbo assemblies. Critical differentiation from 37 D: 37 L is petrol with GPF, while 37 D is diesel with SCR and AdBlue. Service parts require model year verification - turbo actuators for pre-2025 models are incompatible with post-2025 revisions due to control algorithm changes (JLR SIB PTT/107/24).

Identification Details

Evidence:

JLR TIS Doc. ENG-6003

Location:

Engine tag on front timing cover near turbo inlet (JLR TIS ENG-6003).

Visual Cues:

  • Pre-2025: Silver turbo housing, black actuator
  • Post-2025: Dark grey turbo housing, updated actuator design
Compatibility Notes

Actuator:

Turbo actuators for pre-2025 37 L models are not compatible with post-2025 units due to revised ECU control logic and mechanical linkage.

Evidence:

JLR SIB PTT/107/24

E C U Calibration:

ECU maps differ between Range Rover and Range Rover Sport applications; cross-swapping requires reprogramming.
Actuator Upgrade

Issue:

Early 37 L engines experienced turbo wastegate actuator sticking due to carbon buildup and thermal fatigue in sustained urban driving.

Evidence:

JLR SIB PTT/107/24

Recommendation:

Install updated actuator assembly per JLR SIB PTT/107/24 and perform ECU recalibration.

Common Reliability Issues - LAND-ROVER 37L

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.

Turbocharger wastegate actuator sticking
Symptoms: Reduced boost, hesitation under load, over-boost DTCs, limp mode, check engine light.
Cause: Carbon buildup in actuator linkage mechanism, worsened by short journeys and delayed oil changes.
Fix: Replace with updated actuator per service bulletin; recalibrate ECU and inspect cEGR/GPF system for related faults.
Gasoline particulate filter (GPF) clogging
Symptoms: Reduced power, increased fuel consumption, frequent regeneration warnings, exhaust restriction codes.
Cause: Insufficient highway driving prevents passive GPF regeneration; high soot load from urban use and poor oil quality.
Fix: Perform forced regeneration if possible; replace GPF if blocked. Advise owner on driving patterns and oil compliance.
Intake manifold carbon buildup
Symptoms: Rough idle, hesitation, misfires, reduced throttle response.
Cause: Oil vapor and combustion byproducts accumulating on intake valves due to direct injection design.
Fix: Clean intake valves and manifold; inspect PCV system and consider software update for improved purge control.
Oil leaks from valve cover and turbo seals
Symptoms: Oil residue on engine underside, burning smell, low oil level, blue smoke under load.
Cause: Age-related gasket degradation and increased crankcase pressure from CCV system wear.
Fix: Replace valve cover gasket and CCV system with OEM parts; verify turbo seal integrity during service.
Research Basis

Analysis derived from Jaguar Land Rover technical bulletins (2023-2025) and UK DVSA failure statistics (2024-2025). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about LAND-ROVER 37L

Find answers to most commonly asked questions about LAND-ROVER 37L.

Research Resources

Comprehensive technical documentation and regulatory references

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UK type-approval authority for automotive products.

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Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialLAND-ROVER documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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