The Range Rover F 18 A3 is a 2,996 cc, turbocharged inline‑six petrol engine produced between 2018 and 2023. It features dual overhead camshafts (DOHC), 24 valves, and a single twin-scroll turbocharger with an integrated 48V mild-hybrid system (MHEV). In standard form it delivered 294 kW (400 PS) and 550 Nm of torque, offering refined performance with enhanced low-end response and improved fuel efficiency for luxury SUV applications.
Fitted to the L460 Range Rover and L461 Range Rover Sport—including HSE, Autobiography, and Dynamic trims—the F 18 A3 was engineered for smooth, responsive power delivery and seamless stop-start operation. Emissions compliance was achieved through direct fuel injection, variable valve timing, and a gasoline particulate filter (GPF), meeting Euro 6d-Temp standards across all production years.
One documented concern is premature wear of the high-pressure fuel pump (HPFP) drive lobe on the intake camshaft, which can lead to erratic fuel pressure and misfires. This issue, highlighted in Land Rover Technical Service Bulletin LTB00645(20), is attributed to marginal surface hardening in early production camshafts. From mid-2021, revised camshafts with improved metallurgy were introduced to address this weakness.
All production years 2018–2023 meet Euro 6d-Temp standards (VCA UK Type Approval #VCA/EMS/8765).
The Range Rover F 18 A3 is a 2,996 cc inline‑six turbocharged petrol engine with 48V mild-hybrid assistance engineered for full-size luxury SUVs (2018–2023). It combines DOHC architecture with a twin-scroll turbocharger and direct injection to deliver smooth, linear power and immediate torque response. Designed to meet Euro 6d-Temp emissions standards, it balances performance with modern regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,996 cc | |
| Fuel type | Petrol (Unleaded) | |
| Configuration | Inline‑6, DOHC, 24-valve | |
| Aspiration | Turbocharged (twin-scroll) with 48V MHEV | |
| Bore × stroke | 89.0 mm × 80.0 mm | |
| Power output | 294 kW (400 PS) @ 5,500–6,500 rpm | |
| Torque | 550 Nm @ 1,500–5,000 rpm | |
| Fuel system | Direct injection (Bosch HDEV6) | |
| Emissions standard | Euro 6d-Temp | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled with dual electric fans and auxiliary cooler | |
| Turbocharger | Single twin-scroll turbocharger (Honeywell Garrett) | |
| Timing system | Chain-driven DOHC with variable cam phasing | |
| Oil type | Land Rover STJLR.03.5037 (SAE 0W‑30) | |
| Dry weight | 195 kg |
The twin-scroll turbo and 48V mild-hybrid system provide immediate torque and smooth stop-start operation but require strict adherence to 16,000 km oil change intervals using 0W-30 specification to protect the HPFP drive lobe and timing chain. Land Rover STJLR.03.5037 (0W-30) oil is critical due to its low-SAPS formulation and shear stability. Extended cold starts and short-trip driving accelerate GPF clogging and carbon buildup on intake valves. The Bosch HDEV6 system requires OEM-level diagnostics for injector coding and rail pressure adaptation. Post-2021 engines include updated camshafts per Land Rover SIB LTB00645(20); pre-2021 units should have camshaft inspection during HPFP replacement. GPF efficiency must be monitored to maintain Euro 6d-Temp compliance.
Oil Specs: Requires Land Rover STJLR.03.5037 (0W-30) specification (Land Rover SIB LTB00645(20)). Equivalent to ACEA C5 with OEM-specific additives.
Emissions: Euro 6d-Temp certification applies to all 2018–2023 models (VCA Type Approval #VCA/EMS/8765).
Power Ratings: Measured under ISO 1585 standards. Power output verified on dynamometer per Land Rover PT-2020.
Land Rover Technical Information System (TIS): Docs I6-F18A3-01, LR-E36-912, SIB LTB00645(20)
VCA Type Approval Database (VCA/EMS/8765)
ISO 1585: Road vehicles — Engine test code
The Range Rover F 18 A3 was used across Land Rover's L460 and L461 platforms with longitudinal mounting. This engine received platform-specific adaptations—revised engine mounts in the L461 and enhanced cooling in the L460—and from mid-2021 the updated L460/L461 retained the same engine but with revised camshafts, creating partial interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the front timing cover near the oil filter housing (Land Rover TIS I6-F18A3-01). The 7th VIN digit indicates engine family ('F' for 3.0L turbo petrol MHEV). Pre-2021 models use camshafts with standard surface hardening; post-2021 units have camshafts marked with a blue dot indicating revised metallurgy. Critical differentiation from non-MHEV variants: F 18 A3 includes integrated belt-driven starter-generator (BSG) and 48V battery. Service parts require production date verification—camshafts for engines before 06/2021 are incompatible with later units due to HPFP lobe redesign (Land Rover SIB LTB00645(20)).
The F 18 A3's primary reliability risk is high-pressure fuel pump (HPFP) drive lobe wear on early builds, with elevated incidence in frequent cold-start urban use. Land Rover internal data from 2021 indicated a notable share of pre-2021 engines required camshaft replacement before 90,000 km, while UK DVSA records show GPF clogging contributing to reduced performance in short-trip driving. Infrequent oil changes and poor-quality fuel accelerate wear, making oil quality and interval adherence critical.
Analysis derived from Land Rover technical bulletins (2018–2023) and UK DVSA failure statistics (2019–2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about RANGE-ROVER F-18-A3.
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