The Land Rover B6323T is a 3,222 cc, inline — six petrol engine produced between 2011 and 2016. It is a naturally aspirated, DOHC 24 — valve design derived from the Volvo B6324S architecture with Land Rover — specific tuning and ancillary integration. In standard form it delivered 175 kW (238 PS) and 315 Nm of torque, providing smooth power delivery and refinement in luxury SUV applications.
Fitted to models such as the Range Rover Evoque, Land Rover Freelander 2, and Range Rov…
Production years 2011–2016 meet Euro 5 standards .
The Land Rover B6323T is a 3,222 cc inline-six naturally aspirated petrol engine engineered for premium compact and mid-size SUVs (2011–2016). It combines sequential multi-point fuel injection with dual overhead camshafts and variable valve timing to deliver linear power delivery and smooth operation. Designed to meet Euro 5 standards, it balances refinement with regulatory compliance.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,222 cc | |
Fuel type | Petrol | |
Configuration | Inline-6, DOHC, 24-valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 89.0 mm × 86.0 mm | |
Power output | 175 kW (238 PS) @ 6,500 rpm | |
Torque | 315 Nm @ 3,250 rpm | |
Fuel system | Sequential multi-point fuel injection (MPI) | |
Emissions standard | Euro 5 | |
Compression ratio | 10.8:1 | |
Cooling system | Single-circuit water-cooled | |
Turbocharger | Not applicable | |
Timing system | Dual chain (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 187 kg |
The Land Rover B6323T was used across Land Rover's LF2 and L320 platforms with longitudinal mounting. This engine received platform-specific adaptations-higher-flow exhaust in the Range Rover Sport and revised intake tuning in the Freelander 2-and from 2014 the facelifted Evoque models adopted the updated intake manifold with metal-reinforced flaps, creating interchange limits. All adaptations are documented in OEM technical bulletins.
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The B6323T's primary reliability risk is intake manifold runner flap failure, with elevated incidence in high-mileage or high-ambient-temperature operation. Land Rover internal field reports from 2012–2015 indicated 9% of pre-2014 units required intake manifold replacement before 120,000 km, while VCA MOT data shows air intake-related faults contribute to 5% of petrol emissions failures. Thermal cycling and plastic fatigue increase stress on early flaps, making scheduled inspection and correct coolant specification critical.
Analysis derived from manufacturer technical service bulletins and industry workshop records. 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 B6323T is generally reliable when maintained correctly, but pre-2014 models have a known risk of intake manifold flap failure. Post-2014 revisions with metal-reinforced flaps significantly improved durability. Regular oil changes, proper coolant use, and timely inspection of intake components are essential. Well-serviced engines exceeding 150,000 km are common, particularly in non-towing applications.
Primary issues include intake manifold runner flap failure (especially pre-2014), VVT actuator sticking, throttle body carbon buildup, and coolant leaks from the thermostat housing. These are documented in Land Rover service bulletins. Using incorrect oil or extended service intervals accelerates wear. Coolant chemistry and fuel quality are critical factors in longevity.
The B6323T is used in the Range Rover Evoque (L538, 2011–2016), Freelander 2 (L359, 2011–2014), and Range Rover Sport (L320, 2011–2013). It is branded as Si4 or Si6 depending on model year and market. All applications meet Euro 5 emissions standards with three-way catalytic converters.
Aftermarket ECU tuning is common on the B6323T platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In combined driving, the B6323T achieves approximately 10.2–11.8 L/100km (27–24 mpg UK). Highway efficiency improves to ~9.0 L/100km (31 mpg UK). Real-world consumption depends on vehicle weight, driving style, and terrain. Towing or aggressive driving can increase consumption to 14–16 L/100km.
Yes. The B6323T is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal damage. The front-mounted dual chain is robust, but proper oil maintenance is critical to prevent wear. Any timing-related noise should be investigated immediately.
Land Rover specifies SAE 5W-30 RL10240 synthetic oil. This formulation is essential for protecting the timing chain, VVT system, and valvetrain. Oil must be changed every 16,000 km or 12 months. Using non-approved oil can accelerate VVT and chain wear and void warranty.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
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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