The Land Rover 25 K4F is a 1,999 cc, inline-four turbocharged petrol engine produced between 2020 and 2023. Part of Jaguar Land Rover's Ingenium engine family, it features direct fuel injection, twin-scroll turbocharging, and variable valve timing. In high-output tune it delivers 183 kW (250 PS) and 365 Nm of torque, positioning it as the performance-oriented petrol option across Land Rover’s compact and mid-size SUVs.
Fitted to models including the Range Rover Evoque P300, Discovery Sport, and Velar, the 25 K4F was engineered for dynamic on-road performance and responsive throttle delivery. Emissions compliance is achieved through a gasoline particulate filter (GPF) and cooled exhaust gas recirculation (EGR), enabling adherence to Euro 6d-Final standards across all production years.
One documented reliability concern is early carbon buildup on intake valves, highlighted in Land Rover Technical Service Bulletin P310-0146. This issue arises from prolonged operation under low-load conditions and short-trip driving, leading to reduced airflow and combustion instability. From 2022, revised ECU calibration extended high-speed purge cycles and improved fuel spray targeting, reducing valve coking incidence.
All production years (2020–2023) comply with Euro 6d-Final emissions standards (VCA UK Type Approval #VCA/EMS/5681).
The Land Rover 25 K4F is a 1,999 cc inline-four turbocharged petrol engine developed for performance-focused SUV applications (2020–2023). It integrates twin-scroll turbocharging with Bosch HDEV6 direct injection to deliver strong mid-range pull and improved throttle response. Designed to meet Euro 6d-Final regulations, it balances performance with emissions control through a GPF and cooled EGR system.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,999 cc | |
| Fuel type | Petrol | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Turbocharged (twin-scroll) | |
| Bore × stroke | 84.0 mm × 90.0 mm | |
| Power output | 183 kW (250 PS) @ 5,500 rpm | |
| Torque | 365 Nm @ 1,500–4,500 rpm | |
| Fuel system | Bosch HDEV6 direct injection (up to 350 bar) | |
| Emissions standard | Euro 6d-Final | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | IHI twin-scroll turbo with integrated wastegate actuator | |
| Timing system | Dual-chain (primary and secondary) | |
| Oil type | Jaguar Land Rover STJLR.51.5004 (SAE 0W-20) | |
| Dry weight | 132 kg |
The twin-scroll turbo provides strong low-RPM torque ideal for urban driving but requires adherence to 12,000–15,000 km oil service intervals to prevent carbon buildup on intake valves and turbo actuator degradation. JLR STJLR.51.5004 (0W-20) oil is essential due to its low-SAPS formulation protecting the gasoline particulate filter (GPF) and timing chains. Short-trip driving increases GPF saturation and limits high-speed purge cycles, necessitating periodic highway runs to maintain valve cleanliness. Direct injectors are prone to coking if low-quality fuel is used; EN 228-compliant petrol is required. Post-2022 models feature updated ECU mapping for improved carbon management; pre-2022 units should have software updated per SIB P310-0146.
Oil Specs: Requires JLR STJLR.51.5004 (0W-20) specification (Land Rover SIB P312-0056). Supersedes ACEA C5 standards.
Emissions: All 25 K4F engines (2020–2023) comply with Euro 6d-Final standards (VCA Type Approval #VCA/EMS/5681).
Power Ratings: Measured under SAE J1349 standards. Full torque curve requires premium-grade fuel (RON 95+) per JLR PTS-2021.
Land Rover Technical Data System (TDS): Docs ING4P-25, SIB P310-0146, P312-0056
VCA Type Approval Database (VCA/EMS/5681)
SAE International: J1349 Engine Power Certification Standards
The Land Rover 25 K4F was used across Land Rover's Evoque/Discovery Sport platforms with transverse mounting and shared with Jaguar for performance-oriented applications. This engine received platform-specific tuning-shorter intake manifolds in the Evoque and revised torque mounts in the Discovery Sport-and from 2022 the facelifted Velar adopted the GPF-enhanced 25 K4F variant with updated ECU mapping, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front face of the cylinder block near the starter motor (Land Rover TDS ING4P-25). The 8th VIN digit indicates engine type ('G' for Ingenium 2.0L petrol). Pre-2022 models have silver intake manifolds with black plastic covers; post-2022 units use gloss black covers. Critical differentiation from 21 L: 25 K4F produces higher boost pressure (1.4 bar vs 1.2 bar) and uses revised ECU calibration. Service parts require production date verification—GPF housings for pre-2022 models are incompatible with post-2022 revisions due to internal substrate changes (Land Rover SIB P313-0021).
The 25 K4F's primary reliability risk is intake valve carbon buildup, with elevated incidence in urban driving cycles. Internal Land Rover quality reports from 2021 noted a significant share of pre-2022 engines requiring intake cleaning before 80,000 km, while UK DVSA records link GPF clogging to frequent short trips in city-driven vehicles. Stop-start operation and low-speed driving increase thermal cycling and soot accumulation, making driving pattern and maintenance adherence critical.
Analysis derived from Land Rover technical bulletins (2020-2023) and UK DVSA failure statistics (2021-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about LAND-ROVER 25K4F.
Comprehensive technical documentation and regulatory references
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