🏷️ Basic Information

Make:

Mitsubishi

Model:

Lancer

Year:

2004

Chassis Code:

CS Series (Sedan/Sportback)

👋 Introduction

Segment:

Compact car / Small family car.

Competitors:

Honda Civic, Toyota Corolla, Mazda3, Ford Focus, Hyundai Elantra.

Vehicle Focus:

Practicality, affordability, and sporty styling, especially in higher trim levels like the GT or GTS.

Target Audience:

Professional technicians and DIY enthusiasts seeking to maintain and repair their 2004 Mitsubishi Lancer.

📋 Manual Details

Manual Type:

Complete Workshop Service Repair Manual

Language:

English

Format:

Downloadable PDF

Estimated Page Count:

Approximately 1500-2000+ pages (typical for a comprehensive workshop manual of this era)

📖 Manual Coverage

Powertrain:

Engine mechanical, engine performance, fuel system, emission control systems, exhaust system, cooling system, lubrication system, ignition system, starting system, charging system.

Drivetrain:

Manual transmission, automatic transmission, transfer case (if applicable), drive shafts, differentials, axles, CV joints.

Chassis:

Suspension (front and rear), steering system, braking system (hydraulic, ABS, EBD), wheel alignment.

Electrical:

Wiring diagrams, lighting system, instrument cluster, power accessories, body control modules, ECM/PCM, diagnostic trouble codes (DTCs), audio system, power windows, central locking.

Body And Interior:

Body panels, doors, windows, seats, trim, HVAC system, airbags, seat belts, bumpers, exterior trim.

Maintenance:

Scheduled maintenance, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug replacement, belt replacement.

Diagnostics:

Troubleshooting guides, symptom-based diagnostics, diagnostic trouble code (DTC) interpretation and resolution, live data analysis.

Repair:

Engine overhaul, transmission overhaul, brake system repair, suspension component replacement, electrical component repair, body panel repair, HVAC system repair.

Installation:

Component replacement, accessory installation (e.g., tow hitch, audio upgrades - if covered).

Bodywork Repair:

Includes procedures for body panel removal/installation, frame alignment (if applicable), rust repair, and glass replacement.

Emission Control Repair:

Covers diagnosis and repair of emissions-related components such as O2 sensors, catalytic converters, EVAP system, and EGR (if equipped).

Depth:

Comprehensive, covering everything from routine maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures.

Torque Specifications:

Detailed torque specifications for all critical fasteners, from engine components to suspension and bodywork.

Clearances And Tolerances:

Provides precise engine bearing clearances, piston ring end gap, and other critical machining tolerances for engine rebuilds.

Diagnostic Flowcharts:

Includes step-by-step diagnostic flowcharts for troubleshooting common and complex electrical and mechanical issues.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Searchability:

Likely searchable text within the PDF for quick information retrieval.

Printability:

Designed for printing, with clear text and diagrams.

Binding:

Not applicable (Downloadable PDF format)

Paper Quality:

Not applicable (Downloadable PDF format)

⚙️ Engine Specifications

Engine Code:

4G15 (1.5L SOHC), 4G94 (2.0L SOHC), 4G63 (2.0L DOHC Turbo - Lancer Evolution variants are often covered separately, but base models might share aspects)

Displacement 1:

1.5 Liters (1498 cc)

Horsepower 1:

Approx. 90-100 HP (for 1.5L)

Torque 1:

Approx. 95-100 lb-ft (for 1.5L)

Displacement 2:

2.0 Liters (1997 cc)

Horsepower 2:

Approx. 120-135 HP (for 2.0L SOHC)

Torque 2:

Approx. 130-140 lb-ft (for 2.0L SOHC)

Engine Design:

Inline 4-cylinder, SOHC or DOHC (depending on variant)

Compression Ratio 1:

9.5:1 (typical for 4G15)

Compression Ratio 2:

9.5:1 (typical for 4G94)

Fuel Delivery:

Electronic Fuel Injection (MPI - Multi-Point Injection)

Fuel Type:

Unleaded gasoline

Ignition System:

Distributorless Ignition System (DIS) with Coil-on-Plug (COP) or Coil-Near-Plug (CNP) depending on exact engine variant.

🔧 Transmission

Transmission Type Std:

5-speed manual transmission

Transmission Type Opt:

4-speed automatic transmission (INVECS-II or similar)

Clutch Type:

Dry single-plate clutch (manual transmission)

Manual Transmission Fluid:

API GL-4 SAE 75W-90 (check manual for specific viscosity and Mopar/MITSU specifications)

Automatic Transmission Fluid:

DIA QUEEN ATF-SP III (or equivalent Dexron III/Mercon compatible ATF, confirm with manual)

📐 Dimensions

Length:

Approx. 4510 mm (Sedan)

Width:

Approx. 1740 mm

Height:

Approx. 1445 mm (Sedan)

Wheelbase:

Approx. 2630 mm

Curb Weight:

Approx. 1200-1350 kg (depending on engine and trim)

Gross Vehicle Weight Rating:

Varies by model, consult owner's manual or VIN plate.

Trunk Capacity:

Approx. 400-450 Liters (Sedan)

🛡️ Safety Features

NHTSA Front Impact:

Likely 4-star (driver) and 5-star (passenger) based on typical IIHS/NHTSA ratings for this era, verify specific tests.

IIHS Side Impact:

Likely Good or Acceptable, verify specific tests.

ABS:

Available (Anti-lock Braking System)

Ebd:

Often paired with ABS (Electronic Brakeforce Distribution)

Traction Control:

Optional on some higher trims.

Airbags:

Front airbags standard, side airbags optional on higher trims.

Seatbelts:

3-point seatbelts with pre-tensioners and load limiters for front seats.

💡 Technology Features

Audio System:

Factory AM/FM/CD player with standard speaker configuration. Higher trims may have upgraded audio systems or CD changers.

Navigation:

Rarely offered as standard; optional aftermarket or dealer-installed systems may exist.

Cruise Control:

Available on most trim levels.

Keyless Entry:

Available on higher trim levels, remote keyless entry.

Aux Input:

Unlikely to be standard; aftermarket adapter or head unit replacement would be required for aux input.

🔧 Maintenance

Oil Change Interval:

Typically 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, whichever comes first, depending on driving conditions. Check manual for severe vs. normal service.

Air Filter Replacement:

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

Spark Plug Replacement:

Platinum-tipped plugs typically every 60,000-100,000 miles (96,000-160,000 km). Iridium-tipped plugs have longer intervals. Check specific plug type and manual.

Engine Oil Type:

API SN or SP, ILSAC GF-5 or GF-6. Viscosity: 5W-30 is most common, but check manual for regional variations or specific engine needs.

Engine Oil Capacity:

Approx. 4.0-4.5 liters (4.2-4.8 US quarts) with filter change (for 2.0L engine).

Coolant Type:

Mitsubishi Super Long Life Coolant (SLLC) or equivalent ethylene glycol based coolant with required additives for aluminum engines.

Brake Fluid Type:

DOT 3 or DOT 4, check manual for specific recommendation.

Engine Mounts:

Can degrade over time leading to vibration.

Suspension Components:

Ball joints, tie rod ends, and bushings can wear, especially with high mileage or rough driving.

Catalytic Converter:

May become clogged or fail, especially if engine is burning oil.

Exhaust System:

Rust and corrosion can affect pipes and mufflers.

Climate Control Actuators:

Blend door actuators for HVAC can fail, leading to incorrect temperature or airflow distribution.

📚 Vehicle History

Manufacturer:

Mitsubishi Motors Corporation (Japan)

Generation:

This manual covers the 8th Generation Lancer (CS series), which ran from 2000 to 2007 (in many global markets). This specific year of 2004 falls within this generation's lifecycle, likely representing a mid-cycle refresh or consistent model.

Manufacturing Locations:

Japan, Thailand, and other global assembly plants.

🏆 Awards & Recognition

Safety Awards:

Check specific model year reviews for IIHS or NHTSA safety accolades, though often these models received decent, if not class-leading, safety ratings.

Sporty Variants:

While the standard Lancer was more economy-focused, higher trims and special editions (like the GTS) sometimes received praise for sporty handling and driving dynamics relative to their segment.