🏷️ Basic Information

Make:

Mitsubishi

Model:

Lancer

Year:

2003

Chassis Code:

CS_A (Global), CT9A (Evolution VIII)

Engine Code Common:

4G13, 4G15, 4G93, 4G94, 4G63 (Evolution VIII)

👋 Introduction

Segment:

Compact sedan/hatchback, often positioned as an affordable and engaging-driving option.

Competitive Set 2003:

Honda Civic, Toyota Corolla, Ford Focus, Mazda3, Nissan Sentra.

Design:

Modern, aerodynamic styling. The Lancer ES and LS offered a more mainstream appeal, while the OZ Rally and the high-performance Lancer Evolution VIII targeted enthusiasts.

Performance Variants:

The inclusion of the Lancer Evolution VIII (CT9A chassis) significantly boosted the model's performance credentials, renowned for its rally-bred engineering and turbocharged engine.

Target Audience:

Primarily professional automotive technicians, but also suitable for experienced DIY mechanics seeking in-depth repair and maintenance information.

Value Proposition:

Provides detailed, accurate, and actionable information for diagnosing and repairing all systems of the 2003 Mitsubishi Lancer, saving time and money compared to guesswork or limited online resources.

📋 Manual Details

Global Coverage:

Yes, this manual covers global specifications and procedures for the 2003 Lancer, acknowledging regional variations.

Estimated Page Count:

Approximately 1500-2000 pages (typical for comprehensive service manuals)

Manual Type:

Factory Service Manual (FSM) / Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Mechanical:

Engine overhaul, cylinder head, piston, crankshaft, camshafts, timing systems, lubrication, cooling system.

Engine Electrical:

Ignition system, fuel injection system, starting system, charging system, engine control unit (ECU) diagnostics, sensors.

Transmission Manual:

Clutch system, gearbox overhaul, shift mechanisms, fluid specifications, diagnosis.

Transmission Automatic:

Automatic transmission overhaul, valve body, torque converter, control systems, fluid specifications, diagnosis.

Drivetrain:

Front-wheel drive (FWD) and All-wheel drive (AWD) systems (for Evolution models), driveshafts, differentials, wheel bearings.

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment procedures.

Brakes:

Front and rear brake systems (disc and drum variations), ABS system, hydraulic components, brake fluid specifications, bleeding procedures.

Steering:

Power steering system, steering rack, tie rods, steering column, fluid specifications, diagnosis.

Body And Chassis:

Body panel removal and installation, structural components, doors, windows, interior trim, underbody protection.

Electrical System General:

Wiring diagrams, battery, lighting system, horn, wipers, power windows, central locking.

Climate Control:

HVAC system, air conditioning (A/C) service, heater core, blower motor, refrigerant type.

Airbags:

Airbag system components, SRS module, diagnostic procedures, safety precautions.

Routine Maintenance:

Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspection.

Diagnostic Procedures:

Step-by-step troubleshooting guides for common symptoms, diagnostic trouble codes (DTCs), using scan tools.

Repair And Replacement:

Detailed instructions for removing, inspecting, repairing, and installing all major vehicle components.

Wiring Diagrams:

Comprehensive electrical schematics for all major vehicle systems.

Specifications And Tolerances:

Torque specifications, clearances, fluid capacities, and other critical measurements.

Special Tools And Equipment:

Identification of necessary specialized tools for specific repair procedures.

Depth Of Coverage:

Comprehensive, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission rebuilds, and advanced electrical diagnostics.

📊 Manual Specifications

PDF Quality:

High-resolution, searchable PDF with clear text and legible diagrams.

Searchable Text:

Yes, enabling quick location of specific information.

Printability:

Designed for printing, allowing users to print individual pages or sections as needed.

Binding Type:

N/A (Digital download)

Paper Type:

N/A (Digital download)

⚙️ Engine Specifications

Engine Code:

4G15 (1.5L SOHC) or 4G94 (2.4L SOHC MIVEC)

Displacement Common:

1.5L, 2.0L, 2.4L

Horsepower Estimate 1.5L:

90-100 hp @ 6000 rpm

Torque Estimate 1.5L:

90-95 lb-ft @ 4000 rpm

Horsepower Estimate 2.4L:

130-140 hp @ 5500-6000 rpm

Torque Estimate 2.4L:

145-155 lb-ft @ 3700-4000 rpm

Engine Code:

4G63 (2.0L DOHC Turbocharged)

Horsepower Estimate Evo:

271-286 hp @ 6500 rpm (depending on market and specific tune)

Torque Estimate Evo:

273-282 lb-ft @ 3000-3500 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type Standard:

Unleaded Gasoline (87 octane or higher recommended)

Fuel Type Evo:

Premium Unleaded Gasoline (91 octane or higher recommended for optimal performance)

🔧 Transmission

Type:

5-speed Manual Transmission

Type:

4-speed Automatic Transmission (typically on ES/LS models)

Type:

6-speed Manual Transmission

Drivetrain:

All-Wheel Drive (AWD) with Active Center Differential (ACD) and Super Active Yaw Control (S-AYC) on some models.

📐 Dimensions

Value:

Approximately 177.0 - 178.0 inches (4495 - 4521 mm)

Value:

Approximately 66.7 - 67.1 inches (1695 - 1705 mm)

Value:

Approximately 55.1 - 55.5 inches (1400 - 1410 mm)

Value:

Approximately 102.4 inches (2600 mm)

Trunk Capacity:

Approximately 12.4 - 13.1 cubic feet (350 - 370 liters), varies by body style and market.

Curb Weight Typical:

Approximately 2500 - 2800 lbs (1135 - 1270 kg) for FWD models, Evolution VIII can be around 3200 - 3300 lbs (1450 - 1500 kg).

🛡️ Safety Features

NHTSA Front Impact:

Likely achieved 4-star ratings in frontal impacts for driver and passenger (based on general trends of the era).

IIHS Side Impact:

Good (for models equipped with side airbags, if available)

ABS:

Standard on most trims, optional on some base models.

Traction Control:

Optional on some higher trims, standard on Evolution VIII.

Airbags:

Dual front airbags standard. Optional side airbags and curtain airbags available on select trims.

Seatbelts:

3-point seatbelts with pretensioners for front occupants, 3-point seatbelts for rear occupants.

💡 Technology Features

Audio System:

Standard AM/FM stereo with CD player. Higher trims may offer premium audio systems (e.g., Rockford Fosgate) and more speakers.

Navigation:

Optional navigation system available on select higher trim levels.

Cruise Control:

Available on most models, particularly LS and higher trims.

Keyless Entry:

Available on higher trim levels.

Power Accessories:

Power windows, power door locks, and power mirrors standard on most trims.

🔧 Maintenance

Oil Change:

Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6-12 months, depending on driving conditions. Consult manual for specific recommendation.

Air Filter Replacement:

Every 15,000 - 30,000 miles (24,000 - 48,000 km) or as needed based on inspection.

Spark Plug Replacement:

100,000 miles (160,000 km) for iridium or platinum plugs (common for this era).

Transmission Fluid Change:

Manual: Every 30,000 - 60,000 miles (48,000 - 96,000 km). Automatic: Every 30,000 - 50,000 miles (48,000 - 80,000 km).

Engine Oil Type Common:

SAE 5W-30 or 5W-40 API Service Category SN or higher. Consult manual for exact specification.

Engine Oil Capacity Common:

Approximately 3.7 - 4.5 quarts (3.5 - 4.3 liters), including filter. Check manual for exact capacity.

Coolant Type:

Mitsubishi DiaQueen Super Long Life Coolant (Green) or equivalent ethylene glycol-based coolant with demineralized water.

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid.

Power Steering Fluid:

Dexron III/Mercon ATF or specific power steering fluid recommended by Mitsubishi.

Engine Mounts:

Can wear prematurely, leading to vibration and noise.

Automatic Transmission:

Some models can experience shifting issues or torque converter problems; regular fluid changes are crucial.

Catalytic Converter:

Can become clogged over time, impacting performance and emissions.

Suspension Bushings:

Front and rear suspension bushings can degrade, causing noise and affecting handling.

Cooling System:

Radiator leaks or thermostat issues can occur; proper coolant maintenance is important.

📚 Vehicle History

Mitsubishi Motors:

Mitsubishi Motors has a long history in automotive manufacturing, known for innovation, particularly in rally racing with the Lancer Evolution lineage.

Lancer Generations:

The 2003 model belongs to the seventh generation (CS_A chassis globally, CT9A for Evo VIII), which debuted in late 2000/early 2001. This generation marked a significant styling update and improved engineering.

Evolution Development:

The Lancer Evolution VIII, introduced in 2003, was a homologation special for World Rally Championship (WRC) competition, featuring advanced AWD, turbocharging, and robust chassis components.

Manufacturing Locations:

Primarily Japan, with assembly also occurring in other international locations depending on market.

🏆 Awards & Recognition

Performance Legacy:

The Lancer Evolution series, particularly the VIII, has a strong reputation and numerous accolades in the automotive press and motorsport circles for its performance capabilities.

Handling Reviews:

Often praised for its sharp handling and driver engagement, especially in performance variants.