🏷️ Basic Information

Make:

Land Rover

Model:

Discovery 3

Common Name:

LR3

Market Segment:

Full-size Luxury SUV

Generation Name:

Discovery 3 / LR3

Generation Years:

2004-2009

Platform Code:

This manual does not explicitly state the platform code, but it is associated with the L320 platform.

👋 Introduction

Positioning:

A premium, capable full-size SUV known for its off-road prowess and luxurious interior.

Competitors:

Competed against vehicles like the Lexus GX, Toyota Land Cruiser, BMW X5, Mercedes-Benz ML-Class, and Volvo XC90.

Body Structure:

Integrated body-frame construction (a departure from traditional body-on-frame for improved rigidity and on-road manners).

Suspension System:

Advanced electronic air suspension providing adjustable ride height and adaptive damping (Terrain Response integration).

Terrain Response:

Signature Land Rover system that optimizes vehicle settings for various off-road and on-road conditions.

Powertrain Options:

Offered with robust V8 gasoline engines and efficient diesel engines.

📋 Manual Details

Coverage Scope:

Comprehensive repair and service for Land Rover Discovery 3 / LR3 (2004-2009).

Total Pages:

4000+

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF

Download Method:

Instant Download

Printability:

Yes

Operating Systems:

Windows, Mac, Linux OS

Required Software:

Adobe Reader

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for engine disassembly, assembly, inspection, and repair including cylinder heads, pistons, crankshafts, and timing systems.

Engine Management:

Covers fuel injection systems, ignition systems, emissions control, engine sensors, and ECM (Engine Control Module) diagnostics and testing.

Transmission Manual:

Repair and overhaul procedures for manual transmissions, including clutch system servicing.

Transmission Automatic:

Detailed diagnostic, repair, and overhaul procedures for automatic transmissions, including torque converter and transmission control modules.

Drivetrain:

Covers front and rear differentials, drive shafts, CV joints, and transfer case servicing and repair.

Suspension:

In-depth coverage of the Air Suspension system (including component replacement and calibration), control arms, bushings, and shock absorbers.

Steering:

Procedures for steering rack, power steering pump, and steering column servicing and repair.

Brakes:

Detailed information on hydraulic systems, ABS (Anti-lock Braking System), ESC (Electronic Stability Control), brake pads, rotors, calipers, and bleeding procedures.

Electrical System:

Comprehensive wiring diagrams, component testing, fuse and relay identification, and repair procedures for all electrical systems.

Body And Chassis:

Covers body panel removal and installation, interior trim, exterior components, and chassis component servicing.

HVAC:

Service and repair procedures for the heating, ventilation, and air conditioning systems, including refrigerant handling and component replacement.

Comfort And Convenience:

Includes servicing for power windows, locks, seats, mirrors, sunroof, and other comfort features.

Safety Systems:

Details on airbag systems, seatbelt pre-tensioners, and related safety electronics.

Diagnostic Troubleshooting:

Extensive troubleshooting guides, fault code interpretations, and diagnostic procedures for various systems.

Routine Maintenance:

Covers oil changes, filter replacements, fluid checks and top-ups, and general inspections.

Scheduled Maintenance:

Provides guidance on periodic maintenance tasks as per manufacturer recommendations.

Component Removal Installation:

Step-by-step instructions for removing and installing virtually every component of the vehicle.

Disassembly Assembly:

Detailed instructions for breaking down and reassembling various mechanical and electrical sub-systems.

Adjustments Calibrations:

Procedures for making necessary adjustments and calibrations to various systems, including suspension and engine controls.

Testing Inspection:

Methodologies for testing and inspecting components for proper function and wear.

Depth Of Information:

Comprehensive, step-by-step procedures with detailed explanations and pictorial diagrams, suitable for both professional mechanics and experienced DIY enthusiasts.

Diagnostic Capability:

Advanced diagnostic information, including fault code interpretation and troubleshooting trees for complex systems.

Rebuild Procedures:

Detailed procedures for major component rebuilds, such as engines and transmissions.

Special Tool References:

References specific Land Rover special service tools (SSTs) and their application in repair procedures.

Pictorial Diagrams:

Includes bumper-to-bumper illustrations, exploded diagrams, drawings, and photographs to guide users through procedures.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely searchable text within the PDF, enabling quick access to information.

Print Resolution:

Printable, implying sufficient resolution for clear reproduction of text and diagrams.

Binding:

Digital (PDF download - no physical binding)

Paper Type:

N/A (Digital format)

⚙️ Engine Specifications

Engine Options:

4.4L V8 (Jaguar AJ-V8) and 4.2L V8 Supercharged (later models); 2.7L V6 TDV6 Diesel, 3.0L TDV6 Diesel.

Engine Code Example V8:

Typically '448PN' for the naturally aspirated 4.4L V8.

Engine Code Example Diesel:

Typically '276DT' for the 2.7L TDV6.

Horsepower V8 Approx:

Around 290-300 hp for the naturally aspirated 4.4L V8.

Torque V8 Approx:

Around 300-310 lb-ft for the naturally aspirated 4.4L V8.

Horsepower Diesel Approx:

Around 190-200 hp for the 2.7L TDV6.

Torque Diesel Approx:

Around 310-320 lb-ft for the 2.7L TDV6.

Fuel Delivery V8:

Electronic Fuel Injection (EFI).

Fuel Delivery Diesel:

Common Rail Direct Injection (CRDi).

🔧 Transmission

Type V8:

6-speed ZF 6HP26 automatic transmission.

Type Diesel:

6-speed ZF 6HP26 automatic transmission.

Optional Gearbox:

No manual transmission option was widely available or standard for this generation in most markets.

Drive System:

Permanent Four-Wheel Drive (4WD) with electronic center differential and electronic rear differential lock.

📐 Dimensions

Length Mm:

Approx. 4809 mm (189.3 in)

Width Mm:

Approx. 1915 mm (75.4 in) (excluding mirrors)

Height Mm:

Approx. 1877 mm (73.9 in) (unladen)

Wheelbase Mm:

Approx. 2885 mm (113.6 in)

Curb Weight Kg Approx:

Around 2200-2400 kg (4850-5290 lbs), depending on engine and specification.

🛡️ Safety Features

NHTSA Rating Example:

While specific NHTSA ratings can vary by year and testing methodology, it was generally considered a safe vehicle.

ABS:

Standard Anti-lock Braking System.

Esc:

Standard Electronic Stability Control (DSC - Dynamic Stability Control).

Traction Control:

Standard Traction Control System (TCS).

Hill Descent Control:

Standard Hill Descent Control (HDC).

Terrain Response:

Active system that modifies engine, transmission, differentials, and suspension settings for optimal traction.

Airbags:

Front airbags, side curtain airbags, and often front side-impact airbags.

Seatbelts:

Three-point seatbelts with pre-tensioners and load limiters.

💡 Technology Features

Infotainment System:

Navigation system, premium audio options (e.g., Harman Kardon), and climate control displays.

Driver Assistance Features:

Hill Descent Control (HDC), Terrain Response, Cruise Control.

Connectivity Options:

Early Bluetooth integration for phone calls was available on some models.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000-15,000 miles or 12 months (check manual for specific engine and oil type).

Timing Belt Chain:

V8 engines use timing chains; diesel engines use timing belts, typically requiring replacement around 100,000 miles or 7 years. (Crucial to verify in manual).

Engine Oil V8:

e.g., Castrol EDGE Professional OE 5W-30 or equivalent meeting LR004233 specification. (Always verify in manual).

Engine Oil Diesel:

e.g., Castrol EDGE Professional A3 5W-30 or equivalent meeting ACEA A5/B5 specification. (Always verify in manual).

Coolant:

Land Rover (G4) Orange Antifreeze/Coolant (ethylene glycol based) or equivalent meeting BS 6580 specification.

Transmission Fluid Auto:

ZF LifeguardFluid8 (or equivalent specified for ZF 6HP26 transmission, e.g., Shell ATF M-1375.4).

Brake Fluid:

DOT 4 Brake Fluid.

Air Suspension Faults:

Common issues include compressor failure, air spring leaks, and sensor malfunctions.

Diesel Particulate Filter Dpf:

DPF regeneration issues and blockages can occur, particularly with short-distance driving on diesel models.

High Pressure Fuel Pump Diesel:

Some early diesel models experienced issues with fuel pump wear and injector problems.

Heater Control Valve:

Failure of the electronic heater control valves can lead to erratic cabin temperature control.

Rear Differential Seals:

Leaking rear differential pinion seals are a known issue.

Electronic Parking Brake:

Potential faults with the electronic parking brake module or cables.

📚 Vehicle History

Brand Legacy:

Land Rover has a long history of producing rugged, capable off-road vehicles, with the Discovery lineage dating back to 1989.

Discovery Evolution:

The Discovery 3 (LR3 in North America) represented a significant redesign from its predecessor (Discovery 2), introducing a monocoque chassis with integrated body-frame, advanced electronics, and the Terrain Response system.

Manufacturing Plant:

Solihull, West Midlands, England.

🏆 Awards & Recognition

Off Road Awards:

The Discovery 3 / LR3 consistently received praise for its off-road capabilities and received numerous accolades in off-road publications.