🏷️ Basic Information

Make:

Hyundai

Model:

XG250, XG300, XG350

Model Years Covered:

2003 onwards

Internal Model Code Xg250:

XG

Internal Model Code Xg300:

XG

Internal Model Code Xg350:

XG

👋 Introduction

Vehicle Segment:

Mid-size luxury sedan, competing with established players in its class.

Key Competitors:

Toyota Avalon, Buick LeSabre, Ford Crown Victoria, Honda Accord (higher trims).

Target Audience:

Consumers seeking a comfortable, well-equipped, and value-oriented premium sedan.

Manual Value Proposition:

Empowers owners and independent technicians with professional-level diagnostic and repair information, enabling cost savings and improved vehicle maintenance.

Unique Selling Points Manual:

Instant download, comprehensive coverage, professional quality, high-quality visuals.

📋 Manual Details

Overall Coverage:

All repairs covered A-Z, all models covered

Specific Topics:

Maintenance & Servicing, Engine & Clutch, Transmissions, Cooling Systems, Fuel & Exhaust, Ignition & Electrical, Brakes & Brake Assembly, Wheels & Tires, Steering & Suspension, Frame & Bodywork, Wiring Diagrams, Fault Finding Troubleshooting

Estimated Page Count:

Likely extensive, typical for professional workshop manuals (1000+ pages)

Type:

Service Repair Workshop Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Detailed coverage of engine assembly, disassembly, repair, and overhaul for all XG series engines.

Engine Management:

Exhaustive details on fuel injection, ignition systems, emission controls, and engine control unit (ECU) diagnostics.

Transmission Manual:

Complete service and repair procedures for manual transmissions, including clutch assembly and driveline components.

Transmission Automatic:

Comprehensive coverage of automatic transmission operation, diagnostics, repair, and fluid specifications.

Cooling System:

Detailed information on radiator, water pump, thermostat, cooling fans, and coolant specifications.

Fuel System:

In-depth coverage of fuel pump, fuel injectors, fuel filter replacement, and fuel tank service.

Exhaust System:

Procedures for exhaust manifold, catalytic converter, mufflers, and exhaust pipe repairs.

Electrical System:

Extensive coverage of starter motor, alternator, battery, lighting systems, and power distribution.

Ignition System:

Detailed diagnostics and repair of spark plugs, ignition coils, and ignition timing.

Brake System:

Complete service procedures for hydraulic brakes, ABS, parking brake, and brake fluid specifications.

Wheel Tire Assembly:

Information on tire rotation, balancing, wheel alignment, and wheel bearing replacement.

Steering System:

Detailed service for power steering system, steering column, and steering linkage components.

Suspension System:

Repair and replacement procedures for struts, shock absorbers, control arms, and bushings.

Frame Bodywork:

Information on body panel alignment, dent repair, corrosion prevention, and structural components.

HVAC System:

Service and repair of air conditioning, heating, and ventilation systems, including refrigerant handling.

Safety Systems:

Coverage of airbags, seat belts, and related restraint system diagnostics.

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all vehicle systems.

Preventive Maintenance:

Detailed schedules and procedures for routine maintenance tasks.

Troubleshooting:

Systematic fault finding and diagnostic procedures for common and complex issues.

Component Replacement:

Step-by-step instructions for replacing major and minor vehicle components.

Rebuild Procedures:

Detailed instructions for engine and transmission rebuilds.

Adjustment Procedures:

Calibration and adjustment procedures for various systems, e.g., valve lash, wheel alignment.

Special Tools:

Identification and usage instructions for specialized tools required for specific repairs.

Diagnostic Capability:

Professional-grade diagnostic information, including symptom-to-cause charts and OBD-II code explanations.

Repair Complexity:

Covers everything from basic fluid changes to complete engine and transmission overhauls.

Visual Aids:

Numerous high-quality pictures and diagrams to illustrate repair procedures.

📊 Manual Specifications

Digital Format:

PDF

Compatibility:

Windows (95, 98, 2000, Me, Xp, Vista, 7, etc.), MAC

Image Resolution:

High quality for clear visual reproduction of diagrams and photos.

Text Readability:

Designed for easy reading, likely with searchable text capabilities.

Binding:

Not applicable (digital download)

Paper Quality:

Not applicable (digital download)

⚙️ Engine Specifications

Engine Type:

V6, SOHC (Sigma)

Displacement:

2.5 Liters (2498 cc)

Bore X Stroke:

86.7 mm x 71.5 mm

Compression Ratio:

9.4:1

Horsepower Net:

Approximately 160-168 hp @ 6000 rpm (varies slightly by market/year)

Torque Net:

Approximately 177-180 lb-ft @ 4000 rpm (varies slightly by market/year)

Engine Type:

V6, SOHC (Sigma)

Displacement:

3.0 Liters (2972 cc)

Bore X Stroke:

86.7 mm x 85.0 mm

Compression Ratio:

9.4:1

Horsepower Net:

Approximately 190-200 hp @ 6000 rpm (varies slightly by market/year)

Torque Net:

Approximately 200-205 lb-ft @ 4000 rpm (varies slightly by market/year)

Engine Type:

V6, DOHC (Sigma II)

Displacement:

3.5 Liters (3497 cc)

Bore X Stroke:

91.0 mm x 89.0 mm

Compression Ratio:

10.0:1

Horsepower Net:

Approximately 200-204 hp @ 5500 rpm (varies slightly by market/year)

Torque Net:

Approximately 220-225 lb-ft @ 3500 rpm (varies slightly by market/year)

Fuel Delivery:

Multi-port fuel injection (MPI)

Fuel Type:

Unleaded gasoline (87 octane or higher recommended)

Timing Drive:

Timing belt (for SOHC Sigma engines), Timing chain (for DOHC Sigma II engines)

🔧 Transmission

Type:

4-speed Automatic (H-Matic)

Type:

5-speed Manual (less common)

Type:

4-speed Automatic (H-Matic)

Transmission Fluid:

Refer to manual for specific type (e.g., SP-III or equivalent for 4-speed automatic)

Transmission Capacity Auto:

Approximately 7.7 US quarts (7.3 Liters) for 4-speed automatic (refer to manual for exact capacity).

📐 Dimensions

Xg Series Overall Length:

Approximately 196.7 inches (4996 mm)

Xg Series Overall Width:

Approximately 73.0 inches (1854 mm)

Xg Series Overall Height:

Approximately 56.7 inches (1440 mm)

Xg Series Wheelbase:

Approximately 112.4 inches (2855 mm)

Xg Series Curb Weight:

Approximately 3500-3700 lbs (1588-1678 kg) depending on model and equipment.

Xg Series Gross Vehicle Weight Rating Gvwr:

Refer to vehicle's compliance plate or manual.

🛡️ Safety Features

NHTSA Front Crash Test:

Good (for 2002-2004 models, as rated by IIHS, often aligns with NHTSA general performance).

IIHS Side Impact Test:

Acceptable (for 2002-2004 models, as rated by IIHS).

ABS:

Standard on all models

Traction Control System TCS:

Available on some higher trims or later models.

Electronic Stability Control Esc:

Not widely available or standard on early models; check specific vehicle configuration.

Airbags:

Front airbags standard, side-impact airbags available on higher trims.

Seat Belts:

Three-point seat belts with pretensioners and load limiters for front occupants.

💡 Technology Features

Audio System:

AM/FM/CD player, optional premium audio systems (e.g., Infinity).

Navigation System:

Optional on higher trim levels.

Climate Control:

Manual or automatic climate control, often with dual-zone capability.

Cruise Control:

Standard

Power Adjustable Seats:

Available on higher trim levels.

Keyless Entry:

Available on most models.

Power Windows Locks Mirrors:

Standard

🔧 Maintenance

Engine Oil And Filter:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first. Use synthetic blend or full synthetic oil meeting API SN or higher and ILSAC GF-5 or higher specifications.

Engine Air Filter:

Inspect every 7,500 miles (12,000 km), replace every 15,000 miles (24,000 km) or as needed based on conditions.

Cabin Air Filter:

Replace every 15,000 miles (24,000 km) or 12 months.

Transmission Fluid Change:

Inspect fluid level and condition every 30,000 miles (48,000 km). Replace fluid and filter every 60,000 miles (96,000 km) for automatic transmission.

Coolant Replacement:

Replace coolant every 30,000 miles (48,000 km) or 24 months. Use a 50/50 mixture of ethylene glycol coolant and distilled water.

Brake Fluid Replacement:

Replace brake fluid every 24,000 miles (39,000 km) or 24 months. Use DOT 3 brake fluid.

Spark Plug Replacement:

Refer to manual for specific interval based on engine. For Sigma II 3.5L, typically iridium plugs with a longer life (e.g., 100,000 miles).

Timing Belt Replacement:

Crucial for SOHC Sigma engines. Replace every 60,000-90,000 miles (96,000-144,000 km) or 5-7 years. Failure can cause catastrophic engine damage. Refer to manual for exact interval.

Engine Oil Viscosity:

Refer to manual; typically 5W-30 or 5W-20 for most models.

Power Steering Fluid:

Refer to manual for specific type; typically ATF Dexron-III or equivalent.

Engine Timing Belt Failure:

A critical maintenance item. If not replaced at recommended intervals, it can break and cause severe engine damage (interference engine).

Automatic Transmission Harsh Shifting:

Can sometimes occur due to internal wear or solenoid issues, often addressed with fluid/filter service or transmission control module recalibration.

ABS Wheel Speed Sensor Failure:

Can lead to ABS warning lights and system malfunction.

Radiator Leaks:

Plastic end tanks can become brittle and crack over time, leading to coolant loss.

Suspension Component Wear:

Common for components like ball joints, tie rod ends, and bushings to wear, leading to noise and alignment issues.

📚 Vehicle History

Hyundai Brand Focus:

Evolved from economy car manufacturer to a global player offering a wide range of vehicles with increasing quality and features.

Xg Series Introduction:

Introduced in 1999 (as a 2000 model year) to target the growing mid-size premium sedan market.

Xg Series Major Updates:

Facelift and engine upgrades occurred for the 2003 model year, introducing the XG350 with the new Sigma II engine and revised styling. The XG250 and XG300 were phased out or supplemented by the XG350 in many markets. The manual explicitly states '2003-ONWARDS', indicating coverage for the updated XG350 generation and any subsequent model year variations of these platforms.

Production Period:

1999-2005

Manufacturing Location:

South Korea

🏆 Awards & Recognition

Initial Reception:

While specific awards for the XG series are not widely publicized, it was generally recognized for offering strong value and a comfortable ride in its segment, helping to build Hyundai's reputation for quality and features.