🏷️ Basic Information

Make:

Land Rover

Model:

Discovery 2

Year:

2004

Platform Code:

L322 (This is the chassis code for the Discovery 3, but the Discovery 2 is often referred to by its internal code, 'Series II' or 'LT230SE' transfer case specific to its era. The L322 chassis was introduced later. Clarification needed for precise internal model codes of the Discovery 2 which is often associated with the P38A Range Rover underpinnings for the early models and then its own iteration. However, for a 2004 model, the platform is distinct.)

👋 Introduction

Target Audience:

Do-it-yourself owners and professional mechanics seeking detailed repair and maintenance information for the Land Rover Discovery 2.

Value Proposition:

Offers comprehensive coverage of all major systems, detailed procedures, and visual aids, making it a cost-effective resource for maintaining and repairing the vehicle.

Diagnostic Focus:

Emphasis on thorough procedures and detailed guidance to facilitate accurate diagnosis and repair.

Comprehensiveness:

Covers an extensive range of topics from general information and specifications to in-depth mechanical, electrical, and bodywork procedures.

📋 Manual Details

Systems Covered:

Engine (V8), Emission Control (V8), Engine Management System (V8), Cooling System (V8), Manifolds and Exhaust Systems (V8), Clutch (V8), Manual Gearbox (R380), Transfer Box (LT230SE), Automatic Gearbox (ZF4HP22-24), Propeller Shafts, Rear Axle, Front Axle, Steering, Front Suspension, Rear Suspension, Brakes, Restraint Systems, Doors, Exterior Fittings, Interior Trim Components, Screens, Seats, Sunroof, Chassis and Body Dimensions, Panel Repairs, Body Sealing Materials, Corrosion Prevention and Sealing, Painting, Heating and Ventilation, Air Conditioning, Wipers and Washers, Charging and Starting, Lighting, Body Control Unit, Alarm System and Horn, Windows, In Car Entertainment, Harnesses, Driving Aids, Navigation System, Instruments

Estimated Page Count:

Substantial; the detailed list of covered systems indicates a comprehensive manual, likely exceeding 1000 pages.

Type:

Service and Repair Manual

Language:

English

File Format:

PDF

Printability:

Yes

Operating Systems:

Windows, MAC

Software Requirements:

Adobe PDF Reader

📖 Manual Coverage

Engine Systems:

V8 engine mechanicals, cooling, lubrication, fuel delivery, ignition, emissions, engine management, exhaust systems, and relevant sensors/actuators.

Drivetrain Systems:

Manual gearbox (R380), automatic gearbox (ZF4HP22-24), transfer case (LT230SE), propeller shafts, front and rear axles, differentials, and CV joints.

Chassis Systems:

Front and rear suspension (including air suspension components if applicable to the 2004 model year), steering system (rack and pinion, power steering pump and lines), and braking system (ABS, EBD, brake pads, rotors, calipers, hydraulic lines).

Electrical Systems:

Charging and starting system (alternator, starter motor, battery), lighting circuits (headlights, taillights, interior lights), body control module, alarm system, horn, power windows, infotainment, navigation, instruments, and wiring harnesses.

Body And Interior:

Doors, exterior fittings, interior trim, screens (windscreen, side, rear), seats, sunroof, chassis dimensions, panel repair, body sealing, corrosion prevention, painting, HVAC (heating, ventilation, air conditioning), wipers, and washers.

Maintenance Procedures:

Regular scheduled maintenance, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, lubrication, brake system service, suspension component checks, and general inspection.

Repair Procedures:

Detailed step-by-step instructions for component disassembly, repair, and reassembly across all covered systems, including engine rebuilds, transmission overhaul, suspension repair, brake caliper replacement, and electrical component diagnosis.

Diagnostic Procedures:

Troubleshooting guides, symptom-based diagnosis, identification of common faults, and likely procedures for using diagnostic tools (though specific tool usage may be general).

Technical Data:

Torque wrench settings, fluid capacities, fluid specifications (types and grades), lubricant types, sealant specifications, and critical component tolerances.

Bodywork Procedures:

Panel repair techniques, body sealing, corrosion prevention, and painting guidelines.

Depth:

Comprehensive, covering from basic maintenance and fluid checks to complete engine rebuilds, transmission overhauls, and detailed electrical system diagnostics. Suitable for both DIY enthusiasts and professional mechanics.

📊 Manual Specifications

Format:

PDF

Searchability:

Likely searchable text within the PDF, allowing for quick access to specific topics.

Printability:

Printable pages for easy reference in a workshop environment.

Binding Type:

Digital (PDF) - no physical binding

Paper Type:

N/A (Digital format)

Illustrations:

Hundreds of photos and illustrations supporting repair procedures.

Instruction Style:

Step-by-step instructions based on complete disassembly.

Origin:

Not a scanned manual, implying a higher quality digital creation.

⚙️ Engine Specifications

Engine Type:

V8 Petrol (likely 4.0L or 4.6L Rover V8)

Horsepower Torque:

Specific figures vary by engine displacement (e.g., 4.0L approx. 182 hp, 4.6L approx. 217 hp). The manual will detail these for specific models.

Fuel Delivery:

Multi-point fuel injection (MPI) for the V8 engines.

ECU Type:

Details the specific engine management system and sensors used for the 2004 model year, crucial for diagnostics.

Emission Systems:

Covers catalytic converters, oxygen sensors, EGR (if fitted), and evaporative emission control systems.

🔧 Transmission

Model:

R380

Model:

ZF 4HP22-24

Model:

LT230SE (with center differential lock)

Gear Ratios:

The manual will provide specific gear ratios for both manual and automatic transmissions, as well as transfer case ratios.

Transmission Fluids:

Specifies the correct Automatic Transmission Fluid (ATF) for the ZF gearbox and manual gearbox oil type and quantity.

📐 Dimensions

Wheelbase:

2755 mm (108.5 inches)

Length:

4709 mm (185.4 inches)

Width:

1890 mm (74.4 inches)

Height:

1946 mm (76.6 inches)

Curb Weight:

Approx. 2100-2300 kg (4600-5100 lbs) depending on specification. Manual will have exact figures.

Cargo Volume:

Significant cargo space, typical for a large SUV. Manual will provide precise capacity figures.

Wheel Bolt Pattern:

5x120 mm

Standard Tire Size:

Commonly 255/55 R18 or similar. Manual will specify exact fitments.

🛡️ Safety Features

Crash Test Results:

Euro NCAP or NHTSA ratings would have been available during its production, manual may reference safety standards met.

Airbags:

Front airbags for driver and passenger. Side airbags may be optional or standard depending on trim. Manual will detail locations and types.

Seatbelts:

Three-point seatbelts with pre-tensioners for front occupants, lap and diagonal belts for rear occupants. Manual will cover adjustment and maintenance.

Restraint Systems:

Detailed coverage of the restraint systems, including SRS (Supplemental Restraint System) components and deployment logic.

ABS:

Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD). Manual will detail operation and troubleshooting.

Traction Control:

Traction Control System (TCS) and likely Hill Descent Control (HDC) for off-road capability. Manual will explain system operation.

💡 Technology Features

System Details:

Covers the factory-installed audio system, possibly including CD changer and navigation system. Includes wiring diagrams and troubleshooting for these components.

Features:

Details systems like ABS, EBD, Traction Control, and Hill Descent Control (HDC), explaining their operation and maintenance.

Wiring Harnesses:

Comprehensive coverage of vehicle wiring harnesses, essential for diagnosing electrical faults and understanding the integration of various electronic systems.

🔧 Maintenance

Oil Change Interval:

Typically 6,000-10,000 miles or 12 months, whichever comes first. Manual will provide precise intervals for the 2004 model.

Major Service Points:

Spark plug replacement, coolant flush, transmission fluid service, differential oil changes, and timing belt/chain inspection (depending on engine variant, though the Rover V8 uses a timing chain).

Engine Oil:

Likely a synthetic 5W-30 or 5W-40, meeting specific API/ACEA specifications. Manual will specify exact grade and API/ACEA rating.

Coolant:

Antifreeze/coolant, likely a long-life OAT (Organic Acid Technology) type. Manual will detail the specific type and mixture ratio.

Brake Fluid:

DOT 4 brake fluid. Manual will specify replacement intervals and bleeding procedures.

Common Problems:

The manual will likely address common issues for the Discovery 2, such as: EAS (Electronic Air Suspension) problems (leaks, compressor failures), head gasket leaks on V8 engines, SLS (Self-Leveling Suspension) issues, viscous coupling (VCU) wear in the transfer case, and potential for rust on the chassis and bodywork, especially around wheel arches and sills. The manual's detailed troubleshooting sections are invaluable for addressing these.

Importance:

Dedicated section for torque wrench settings ensures critical fasteners are tightened to manufacturer specifications, crucial for engine, chassis, and drivetrain integrity.

📚 Vehicle History

Heritage:

Land Rover has a long history of producing capable off-road vehicles, with the Discovery line representing a blend of utility, luxury, and go-anywhere ability.

Discovery 2 Era:

The Discovery 2 (Series II) was produced from 1998 to 2004. It represented a significant evolution from the original Discovery, incorporating more advanced electronics, improved comfort, and updated styling, while retaining its core off-road prowess. The 2004 model year represents the final iteration before the introduction of the significantly redesigned Discovery 3 (L320).

Manufacturing Locations:

Primarily manufactured at the Solihull plant in the United Kingdom.

🏆 Awards & Recognition

Off Road Capability:

The Discovery series has consistently been recognized for its exceptional off-road capability and versatility, often winning accolades in adventure and off-road vehicle categories.

Segment Performance:

Competed in the premium SUV segment against vehicles like the Toyota Land Cruiser, Jeep Grand Cherokee, and Mercedes-Benz ML-Class. The manual provides the technical depth to maintain its performance against these competitors.