🏷️ Basic Information

Make:

Mitsubishi

Model:

Lancer / Lancer Wagon

Year:

2004

Chassis Codes:

CSA (Sedan), CSW (Wagon)

Platform:

Mitsubishi CS Platform

👋 Introduction

Segment:

Compact sedan and wagon, competing in a highly saturated segment known for value and reliability.

Key Competitors:

Honda Civic, Toyota Corolla, Ford Focus, Chevrolet Cavalier/Cobalt, Nissan Sentra.

Value Proposition:

The 2004 Lancer offered a compelling blend of affordability, distinctive styling (especially the Ralliart versions), and generally good mechanicals, making it a popular choice for budget-conscious buyers and enthusiasts alike.

Manual Importance:

This manual is essential for maintaining the vehicle's performance, addressing potential issues, and ensuring longevity, especially for owners performing their own maintenance or repairs.

📋 Manual Details

Market Coverage:

North America, Europe, Australia (likely, based on bilingual aspect and model commonality)

Engine Coverage:

All specified engines for 2004 Lancer/Lancer Wagon

Trim Level Coverage:

All trim levels included

Estimated Page Count:

Extensive, likely over 1000 pages given the 'complete' description and bilingual format.

Type:

Workshop Repair Service Manual

Languages:

English and Spanish

Format:

Digital (likely PDF, implied by typical sales of such manuals)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, cylinder head, crankshaft, pistons, connecting rods, lubrication system, cooling system.

Engine Electrical:

Ignition system, fuel injection system (MPI), emission control systems, starting system, charging system, engine control module (ECM).

Transmission:

Manual transmission (5-speed), Automatic transmission (4-speed INVECS-II), including clutch, torque converter, valve body, and shift control.

Drivetrain:

Front-wheel drive (FWD), All-wheel drive (AWD - for specific models/trims), driveshafts, CV joints, differentials.

Suspension:

Front suspension (MacPherson strut), Rear suspension (Multi-link beam for wagon, independent for sedan variants), shock absorbers, springs, bushings.

Steering:

Power steering system (hydraulic or electric assist), steering column, tie rods, steering gear.

Brakes:

Front disc brakes, Rear drum or disc brakes, Anti-lock Braking System (ABS), brake hydraulics, parking brake.

Electrical System:

12V battery system, alternator, starter motor, lighting (headlights, taillights, interior), power windows, power locks, wipers, horn.

Body And Interior:

Body panel removal and installation, doors, hood, trunk/tailgate, bumpers, seats, dashboard, trim panels, HVAC system.

Climate Control:

Air conditioning (A/C) system, heater, ventilation, blower motor, refrigerant.

Safety Systems:

Airbag system, seatbelt pre-tensioners, Supplemental Restraint System (SRS) diagnostics.

Routine Maintenance:

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

Diagnostic Troubleshooting:

Step-by-step troubleshooting guides for common symptoms and DTC (Diagnostic Trouble Code) interpretation.

Component Repair Rebuild:

Detailed instructions for repairing or rebuilding major components like engine, transmission, brakes, and suspension.

Electrical Diagnostics:

Wiring diagrams, component testing procedures, circuit analysis.

Specifications And Tolerances:

Torque specifications, clearances, wear limits, and critical measurement data for all components.

Alignment And Balancing:

Wheel alignment specifications, balancing procedures.

Lubrication And Capacities:

Fluid types, capacities, and lubrication points for all systems.

Depth:

Comprehensive, covering everything from basic maintenance to complete engine and transmission overhauls, including electrical system diagnosis.

Diagnostic Tools:

References to factory diagnostic tools (e.g., MUT-III) and generic OBD-II scanners for troubleshooting.

Special Tools:

Identification and usage of specialized tools required for specific repair procedures.

📊 Manual Specifications

Format:

PDF (highly probable for digital sales), ensuring searchability and ease of navigation.

Quality:

High resolution, clear diagrams, and legible text suitable for printing.

Type:

N/A (for digital format), but if printed, would typically be spiral-bound or perfect-bound for usability in a workshop.

Type:

N/A (for digital format), but typically high-quality, durable paper for printed manuals used in garages.

⚙️ Engine Specifications

Engine Code 1:

4G63 (2.0L SOHC)

Engine Code 2:

4G18 (1.6L SOHC)

Engine Code 3:

4G94 (2.4L SOHC - likely for higher trims or specific markets)

Horsepower 2.0L:

Approx. 120-135 hp (depending on specific market tune)

Torque 2.0L:

Approx. 130-140 lb-ft

Horsepower 1.6L:

Approx. 100-105 hp

Torque 1.6L:

Approx. 105-110 lb-ft

Horsepower 2.4L:

Approx. 150-165 hp

Torque 2.4L:

Approx. 150-170 lb-ft

Fuel Delivery:

Electronic Multi-Point Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline (87 octane minimum recommended)

Emissions Control:

Catalytic converter, EGR system, Oxygen sensors (O2 sensors), EVAP system.

🔧 Transmission

Type Sedan:

5-speed Manual Transmission

Type Sedan Wagon:

4-speed Automatic Transmission (INVECS-II)

AWD Option:

Available on certain trims/models, often paired with AWD viscous coupling center differential.

Manual Fluid Spec:

API GL-4 gear oil (specific viscosity to be confirmed in manual, likely 75W-90 or 80W-90).

Automatic Fluid Spec:

Diamond SP III (or equivalent ATF)

📐 Dimensions

Wheelbase Sedan:

Approx. 103.1 inches (2619 mm)

Wheelbase Wagon:

Approx. 103.1 inches (2619 mm)

Length Sedan:

Approx. 177.1 inches (4498 mm)

Length Wagon:

Approx. 179.5 inches (4560 mm)

Width:

Approx. 67.3 inches (1709 mm)

Height Sedan:

Approx. 55.1 inches (1400 mm)

Height Wagon:

Approx. 57.1 inches (1450 mm)

Cargo Volume Sedan:

Approx. 12.4 cu ft (351 L)

Cargo Volume Wagon:

Approx. 21.3 cu ft (603 L) with rear seats up

Curb Weight:

Varies by model and options, typically 2,700 - 3,100 lbs (1225 - 1406 kg)

🛡️ Safety Features

NHTSA Front Impact Driver:

Good (for 2004 models tested)

NHTSA Front Impact Passenger:

Good (for 2004 models tested)

IIHS Front Offset Score:

Acceptable to Good (depending on specific test year and minor structural changes)

ABS:

Optional on lower trims, standard on higher trims and AWD models.

Traction Control:

Available on some AWD models.

Airbags:

Front dual-stage airbags standard. Side airbags and curtain airbags optional on some trims.

Seatbelts:

3-point seatbelts with pretensioners in front, 3-point seatbelts in rear. LATCH child seat anchors.

💡 Technology Features

Audio System:

Factory AM/FM/CD player, with optional cassette and premium audio systems from Rockford Fosgate on some trims.

Display:

Basic LCD display for audio and clock functions. No navigation or advanced infotainment systems typically available in this model year.

Cruise Control:

Available on most trims.

Aux Input:

Not typically equipped from the factory. Aftermarket head unit installation common for iPod/Bluetooth connectivity.

🔧 Maintenance

Oil Change Interval:

Every 3,750 - 5,000 miles or 6 months, whichever comes first (check manual for specific engine oil recommendations).

Air Filter Replacement:

Every 15,000 - 30,000 miles or as needed based on inspection.

Spark Plug Replacement:

100,000 miles for iridium-tipped plugs (check manual for exact type and interval).

Timing Belt Replacement:

60,000 - 90,000 miles or 5-7 years for 4G63/4G94 engines (critical maintenance item, check manual for exact interval and type).

Engine Oil Capacity:

Approx. 4.0-4.5 quarts (3.8-4.3 L) for 2.0L/2.4L, 3.5 quarts (3.3 L) for 1.6L (check manual for exact capacity and viscosity).

Coolant Type:

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

Brake Fluid Type:

DOT 3 or DOT 4.

Ignition Coils:

Intermittent misfires can be caused by failing ignition coils or spark plug wires.

ABS Sensors:

ABS warning lights can indicate faulty wheel speed sensors.

Rear Suspension Bushings:

Worn rear suspension bushings can lead to clunks or poor handling, especially on the wagon.

Evaporative Emission Control:

Check Engine Light may illuminate due to EVAP system leaks (e.g., gas cap, purge valve).

📚 Vehicle History

Mitsubishi Legacy:

Mitsubishi has a long history in automotive manufacturing, known for robust engineering and performance-oriented vehicles, particularly in rallying.

Lancer Lineage:

The Lancer has been a staple of Mitsubishi's global lineup since its introduction in 1973. The 2004 model represents the third generation of the Lancer family in North America (based on the Mitsubishi Galant/Eclipse platform).

Manufacturing Location:

Primary assembly in Mizushima, Japan. Also produced in other global facilities depending on market.

Generation Designation:

This generation (CS/CSA/CSW) spanned from 2000 to 2007, with a facelift in 2003.

🏆 Awards & Recognition

Segment Competitiveness:

While not a recipient of major 'Car of the Year' awards in this specific iteration, the Lancer platform was known for its rally heritage (Evolution models) and offered a sporty alternative in its segment.