🏷️ Basic Information

Make:

Land Rover

Model:

Discovery 3 / LR3

Year:

2005

Chassis Code:

L319

Engine Code Diesel:

276DT (V6 2.7L TDV6)

Engine Code Petrol V6:

406 PN (V6 4.0L)

Engine Code Petrol V8:

448PN (AJV8 4.4L)

👋 Introduction

Market Position:

The 2005 Land Rover Discovery 3 (LR3) represented a significant evolution in Land Rover's premium mid-size SUV segment, blending robust off-road capability with luxury appointments and advanced technology. It was positioned against strong competitors like the BMW X5, Mercedes-Benz M-Class, and Lexus RX.

Competitive Analysis:

The Discovery 3 was lauded for its integrated chassis design, advanced Terrain Response system, and powerful engine options. Its monocoque construction with integrated body-frame offered superior rigidity and refinement compared to traditional body-on-frame SUVs, while maintaining impressive off-road credentials. The 2.7L TDV6 diesel, in particular, offered excellent torque and fuel efficiency for its class.

Key Features:

Integrated Body-Frame (IBF) chassis, independent air suspension, sophisticated Terrain Response system, multiple engine options including V6 diesel and V8 petrol, luxurious interior, advanced electronic aids.

📋 Manual Details

Coverage Areas:

Comprehensive (Engine, Transmission, Drivetrain, Brakes, Suspension, Steering, Electrical Systems, Bodywork, HVAC, Diagnostics, Troubleshooting)

Page Count:

Estimated 2000+ pages (typical for comprehensive service manuals of this era and complexity)

Manual Type:

Service and Repair Manual

Language:

English

Format:

Digital Download (ZIP containing PDF files)

📖 Manual Coverage

Systems Covered:

Engine mechanical and electrical, Fuel system, Ignition system, Exhaust system, Cooling system, Lubrication system, Turbocharger system (where applicable), Transmission (automatic and manual), Transfer case, Drive shafts, Differentials, Suspension (including Air Suspension and Terrain Response), Steering system, Brake system (including ABS, EBD, DSC), Electrical system (including Body Control Module - BCM, Powertrain Control Module - PCM, lighting, instrumentation), HVAC system, Body and chassis, Interior trim, Exterior body panels, Security system, Diagnostics and fault finding, Wiring diagrams.

Procedures Included:

Routine maintenance, Scheduled servicing, Engine overhaul (including timing belt/chain replacement, cylinder head removal/installation), Transmission overhaul and repair, Drivetrain component repair, Brake caliper, rotor, and hose replacement, Suspension component replacement (shocks, struts, control arms, bushings), Steering rack and pump service, Electrical component testing and replacement, HVAC system diagnosis and repair, Body panel alignment and repair, Diagnostic trouble code (DTC) interpretation and troubleshooting, Software updates and module programming procedures (where applicable).

Technical Depth:

Expert-level. Covers detailed disassembly, assembly, inspection, repair, and adjustment procedures for all major vehicle systems. Includes diagnostic flowcharts, torque specifications, electrical schematics, component testing procedures, and specifications for wear limits and tolerances.

📊 Manual Specifications

File Format:

PDF (Portable Document Format)

Print Quality:

High-resolution, printable pages suitable for professional workshops and home mechanics. Often includes searchable text for efficient information retrieval.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Code:

276DT

Configuration:

3.0L V6 Turbocharged Diesel

Displacement:

2720 cc (2.7 Liters)

Horsepower:

190 PS (187 hp) @ 4000 rpm

Torque:

325 lb-ft (440 Nm) @ 1900 rpm

Engine Code:

406 PN

Configuration:

4.0L V6 Petrol

Displacement:

3950 cc (4.0 Liters)

Horsepower:

217 hp @ 5500 rpm

Torque:

261 lb-ft (354 Nm) @ 3500 rpm

Engine Code:

448PN (AJV8)

Configuration:

4.4L V8 Petrol

Displacement:

4398 cc (4.4 Liters)

Horsepower:

300 hp @ 5500 rpm

Torque:

315 lb-ft (427 Nm) @ 4000 rpm

Fuel Injection:

Common Rail Direct Injection (TDV6), Multi-point Fuel Injection (Petrol V6/V8)

🔧 Transmission

Type:

6-speed ZF 6HP26 automatic transmission

Type:

N/A for 2005 model year, 6-speed automatic was standard across the range.

Features:

Electronically controlled, adaptive shifting, Steptronic manual mode, integrated with Terrain Response system for optimized gear selection based on surface conditions.

Type:

Two-speed electronic transfer box with locking center differential

📐 Dimensions

Value:

4950 mm (194.9 in)

Value:

1954 mm (76.9 in)

Value:

1886 mm (74.3 in) (standard height)

Value:

2885 mm (113.6 in)

Value:

Variable up to 240 mm (9.4 in) with air suspension

Value:

Approximately 1125 liters (39.7 cu ft) behind the second row, expandable to over 2500 liters with seats folded.

Value Diesel:

Approx. 2380 kg (5247 lbs)

Value V8:

Approx. 2450 kg (5390 lbs)

Value:

Up to 3500 kg (7716 lbs)

🛡️ Safety Features

NHTSA Front Impact:

Not directly rated by NHTSA in the same manner as modern vehicles, but expected to perform well given construction and safety features.

Euro Ncap:

4 Stars (2005)

Active Features List:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Cornering Brake Control (CBC), Dynamic Stability Control (DSC), Roll Stability Control (RSC), Hill Descent Control (HDC), Traction Control System (TCS), Terrain Response System.

Passive Features List:

Front airbags, Front side airbags, Full-length curtain airbags, Three-point seatbelts with pre-tensioners, Active front head restraints, ISOFIX child seat anchor points, High-strength steel safety cage.

💡 Technology Features

Infotainment System:

Optional GPS navigation, premium audio systems (Harman Kardon), CD changer, rear-seat entertainment systems.

Driver Assistance Features:

Adaptive Cruise Control (ACC), Bi-Xenon Headlights, Automatic Wipers, Parking Sensors (front and rear).

Connectivity Features:

Bluetooth hands-free calling (optional, often requires a separate module).

Terrain Response System:

Pioneering system that optimizes engine, transmission, differentials, and chassis settings for various terrains (General Driving, Grass/Gravel/Snow, Mud/Ruts, Sand, Rock Crawl).

🔧 Maintenance

Oil Change:

Every 15,000 miles or 12 months, whichever comes first.

Fuel Filter Replacement:

Every 30,000 miles or 24 months.

Air Filter Replacement:

Every 30,000 miles or 24 months.

Oil Change:

Every 15,000 miles or 12 months, whichever comes first.

Air Filter Replacement:

Every 30,000 miles or 24 months.

Coolant Flush:

Every 5 years or 100,000 miles.

Timing Belt Replacement:

N/A for TDV6 (uses timing chains). For petrol V8 (AJV8), typically 100,000 miles or 10 years for timing chains, check specific manual for belt vs chain on V6 petrol.

Specification:

WSS-M2C214-B1 or ACEA C3 (e.g., Castrol EDGE Professional V 0W-30)

Capacity:

7.7 liters (8.1 US quarts)

Specification:

WSS-M2C154-A (e.g., Castrol SLX Professional 5W-30)

Capacity:

6.7 liters (7.1 US quarts)

Specification:

WSS-M2C154-A (e.g., Castrol SLX Professional 5W-30)

Capacity:

7.7 liters (8.1 US quarts)

Specification:

LT 71141 / ZF Lifeguardfluid 5

Specification:

TF 0821

Specification:

API GL-5, SAE 75W-90

Specification:

DOT 4

Common Issues List:

Air suspension compressor and height sensors failure, EGR valve clogging (TDV6), Diesel particulate filter (DPF) issues (TDV6), fuel injector issues (TDV6), turbocharger problems (TDV6), coolant leaks from manifold or hoses, electronic parking brake faults, power steering pump leaks, transmission control module (TCM) failures, interior electrical gremlins.

📚 Vehicle History

Heritage Summary:

Land Rover boasts a rich heritage of producing rugged, capable off-road vehicles, dating back to the original Land Rover Series I in 1948. The Discovery line, introduced in 1989, was designed to offer more comfort and versatility than the Defender, while retaining significant off-road prowess.

Evolution Summary:

The Discovery 3 marked a significant departure from previous generations, featuring a completely new integrated chassis and styling. It was based on the integrated body-frame (IBF) platform, shared with the Range Rover, offering improved on-road dynamics and refinement. This generation was also known as the LR3 in North America and Australia.

Production Location:

Solihull, England

Production Years:

2004-2009 (for Discovery 3/LR3)

🏆 Awards & Recognition

Awards List:

While specific awards for the 2005 model year might vary by region, the Discovery 3/LR3 was generally well-received for its engineering and off-road capabilities. It was often cited in 'Best SUV' or 'Best Off-Roader' lists by automotive publications.