The Land Rover Discovery IV 3.0 LR SD V6 (256 Hp) AWD Automatic, produced from 2011 to 2013, represents a significant iteration of Land Rover’s mid-size SUV. Falling within the fourth generation of the Discovery (designated the L359 series), this variant occupied a premium position in the lineup, offering a blend of on-road comfort and renowned Land Rover off-road capability. It was positioned as a step up from the base 2.7L diesel models and the 3.0L TDV6, offering increased performance and refinement. The Discovery IV aimed to modernize the Discovery line, moving it further upmarket while retaining its core functionality as a versatile family vehicle.
Technical Specifications
| Brand | Land Rover |
| Model | Discovery |
| Generation | Discovery IV |
| Type (Engine) | 3.0 LR SD V6 (256 Hp) AWD Automatic |
| Start of production | 2011 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV |
| Seats | 5-7 |
| Doors | 5 |
| Fuel consumption (urban) | 9.8 l/100 km (24 US mpg) |
| Fuel consumption (extra urban) | 8.1 l/100 km (29 US mpg) |
| Fuel consumption (combined) | 8.8 l/100 km (26.7 US mpg) |
| CO2 emissions | 230 g/km |
| Fuel Type | Diesel |
| Acceleration 0 – 100 km/h | 9.3 sec |
| Acceleration 0 – 62 mph | 9.3 sec |
| Acceleration 0 – 60 mph | 8.8 sec |
| Maximum speed | 180 km/h (111.85 mph) |
| Emission standard | Euro 5 |
| Power | 256 Hp @ 4000 rpm |
| Torque | 600 Nm @ 2000 rpm (442.54 lb.-ft. @ 2000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 306DT |
| Engine displacement | 2993 cm3 (182.64 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 84 mm (3.31 in.) |
| Piston Stroke | 90 mm (3.54 in.) |
| Compression ratio | 16.1:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Diesel Commonrail |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | OHC |
| Engine oil capacity | 5.9 l (6.23 US qt | 5.19 UK qt) |
| Fuel tank capacity | 82.3 l (21.74 US gal | 18.1 UK gal) |
| Length | 4829 mm (190.12 in.) |
| Width with mirrors folded | 2022 mm (79.61 in.) |
| Width including mirrors | 2176 mm (85.67 in.) |
| Height | 1887 mm (74.29 in.) |
| Wheelbase | 2885 mm (113.58 in.) |
| Drag coefficient (Cd) | 0.40 |
| Minimum turning circle | 11.8 m (38.71 ft.) |
| Drive wheel | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
Powertrain & Engine Architecture
The heart of the Discovery IV 3.0 LR SD V6 is the 306DT engine, a 3.0-liter V6 diesel. This engine utilizes a sequential twin-turbocharger setup, providing both low-end torque and high-end power. The first turbocharger is a variable geometry turbo (VGT) that spools up quickly to minimize turbo lag, while the second turbocharger provides increased boost at higher engine speeds. The engine employs a common rail direct injection system, delivering fuel at extremely high pressures for optimized combustion. The 306DT engine features a cast iron block and aluminum cylinder heads, balancing durability with weight reduction. The eight-speed ZF 8HP70 automatic transmission, known for its smooth shifting and efficiency, is paired with the engine. This transmission offers both fully automatic operation and manual control via steering wheel-mounted paddle shifters.
Driving Characteristics
The 256 horsepower and 442 lb-ft of torque delivered by the 3.0 LR SD V6 provide a noticeable performance upgrade over the lower-powered Discovery IV models. Acceleration from 0-60 mph takes approximately 8.8 seconds, making it adequately quick for everyday driving and highway merging. The eight-speed automatic transmission contributes to a refined driving experience, with smooth gear changes and a wide range of ratios. The transmission’s programming prioritizes fuel efficiency, but Sport mode provides quicker shifts and a more responsive throttle. Compared to the manual transmission options available on other Discovery IV trims, the automatic offers greater convenience, particularly in urban environments. However, some enthusiasts argue that the manual transmission provides a more engaging driving experience. The permanent all-wheel-drive system, coupled with Land Rover’s Terrain Response system, ensures excellent traction and off-road capability.
Equipment & Trim Levels
The 3.0 LR SD V6 Automatic typically came equipped with a generous level of standard features. These included leather upholstery, heated front seats, dual-zone climate control, a premium audio system, and parking sensors. Optional extras included a panoramic sunroof, adaptive cruise control, a rear entertainment system, and upgraded navigation. Trim levels varied depending on the market, but generally, this engine was offered in HSE and HSE Luxury trims. These trims featured additional luxury appointments, such as premium leather, wood veneer trim, and advanced safety features. The Discovery IV’s interior was designed with practicality in mind, offering ample space for passengers and cargo. The optional seven-seat configuration provided increased versatility for families.
Chassis & Braking
The Discovery IV utilizes a robust body-on-frame construction, providing excellent strength and durability. The suspension system consists of independent double wishbones at both the front and rear, offering a comfortable ride and good handling characteristics. Air suspension was often included, allowing the ride height to be adjusted for improved off-road capability or on-road comfort. Braking duties are handled by ventilated disc brakes at all four corners, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features, enhancing safety and control. The steering is rack and pinion with electric power assistance, offering precise and responsive steering feel.
Market Reception & Comparison
The Discovery IV 3.0 LR SD V6 Automatic was generally well-received by automotive critics. It was praised for its refined driving experience, comfortable interior, and impressive off-road capability. The engine was considered a good balance of performance and fuel efficiency, although some reviewers noted that it could be somewhat noisy under hard acceleration. Compared to the 2.7L diesel and 3.0L TDV6 models, the 3.0 LR SD V6 offered a significant performance boost. However, it also came with a higher price tag. Against competitors such as the BMW X5 and Audi Q7, the Discovery IV offered a unique combination of luxury, practicality, and off-road prowess.
Legacy
The 306DT engine, while generally reliable, is known to require regular maintenance, particularly regarding the diesel particulate filter (DPF) and turbochargers. Proper servicing and the use of high-quality oil are crucial for ensuring long-term reliability. In the used car market, the Discovery IV 3.0 LR SD V6 Automatic remains a popular choice for those seeking a capable and comfortable SUV. Its blend of luxury, practicality, and off-road capability continues to appeal to a wide range of buyers. However, potential buyers should be aware of the potential maintenance costs associated with a diesel engine and the complexity of the vehicle’s systems. Overall, the Discovery IV 3.0 LR SD V6 Automatic represents a well-rounded and capable SUV that has stood the test of time.
