🏷️ Basic Information

Make:

Mitsubishi

Model:

Magna / Verada / Diamante / Ralliart

Chassis Codes:

TJ, KJ, TH, KH

Body Styles:

Sedan, Wagon

Engine Codes Common:

6G72, 6G74, 6G75

Transmission Codes Common:

F4A51 (4-speed Auto), W4A51 (4-speed Auto), F5A51 (5-speed Auto)

👋 Introduction

Segment:

Large family sedan/wagon, often positioned as a more affordable alternative to premium European or Japanese sedans.

Competitors Australia:

Holden Commodore, Ford Falcon, Toyota Camry

Competitors North America:

Acura Legend/RL, Toyota Avalon, Nissan Maxima (as Diamante)

Strengths:

Spacious interiors, comfortable ride, powerful V6 engines, strong value proposition, especially in the Australian market.

Weaknesses:

Fuel economy could be better on V6 models, some interior material quality concerns compared to premium rivals, resale value can be lower than market leaders.

Engine Options:

Smooth V6 engines, offering good power and torque.

Suspension:

Independent suspension front and rear for a refined ride and handling balance.

Interior Space:

Generous cabin and boot space, particularly in the wagon variants.

Performance Variants:

Ralliart editions offered enhanced performance, often with unique styling and AWD systems.

📋 Manual Details

Regions Covered:

Australia, Japan, North America (for Diamante)

Model Years Covered:

Approximately 1996-2005 (corresponds to TH, KH, TJ, KJ generations)

Estimated Page Count:

1500+ pages (typical for a comprehensive workshop manual)

Type:

Workshop Repair Service Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Powertrain:

Engine mechanical, fuel system, ignition system, cooling system, lubrication system, exhaust system, engine management (ECU, sensors), manual transmission, automatic transmission (including F4A51, W4A51, F5A51).

Chassis:

Front and rear suspension (independent, multi-link), steering system (power assisted, rack and pinion), braking system (disc brakes front/rear, ABS, EBD), driveline (FWD, AWD for some Ralliart models).

Electrical:

Wiring diagrams, charging system, starting system, lighting, instruments, body electrical (power windows, locks, mirrors), climate control, audio system, SRS (airbag) system, diagnostics (OBD-II).

Body:

Exterior body panels, interior trim, doors, windows, locks, glass, bumpers, chassis repair, welding procedures, corrosion protection.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and top-ups, spark plug replacement, belt replacement, battery maintenance.

Repair:

Engine component replacement (pistons, rings, valves, head gasket), transmission overhaul, suspension component replacement, brake caliper and rotor replacement, steering rack rebuild, electrical component repair, body panel repair.

Troubleshooting:

Diagnostic flowcharts, symptom-based troubleshooting, electrical fault finding, engine performance issues, transmission problems.

Specifications:

Torque specifications for all fasteners, clearances, pressures, voltages, resistance values.

Depth:

Comprehensive, covering routine maintenance to complete engine and transmission rebuilds. Includes detailed diagnostic procedures and wiring diagrams.

📊 Manual Specifications

Type:

PDF

Searchable:

Likely searchable text (depending on scan quality)

Printable:

Yes

Image Resolution:

High resolution, clear diagrams and illustrations

Binding:

Not Applicable (Digital Download)

Paper Type:

Not Applicable (Digital Download)

Completeness:

Original factory service manual content, likely very comprehensive.

⚙️ Engine Specifications

Engine Family:

Mitsubishi 6G7 series V6

Common Displacements:

3.0L (6G72), 3.5L (6G74), 3.8L (6G75)

Horsepower Range:

Approximately 140 kW to 160 kW (for 6G72/6G74), up to 180 kW+ (for 6G75 and Ralliart variants).

Torque Range:

Approximately 255 Nm to 330 Nm.

Induction:

Multi-point Fuel Injection (MPI), some later models may feature Gasoline Direct Injection (GDI).

Fuel Type:

Unleaded Petrol (ULP), Premium Unleaded Petrol (PULP) recommended for higher performance variants.

ECU Type:

Mitsubishi Electronic Control Unit (ECU) with diagnostic capabilities.

Emission Standards:

Meets relevant Australian and international emission standards for the period.

🔧 Transmission

Transmission Type:

Automatic Transmission (AT)

Transmission Type:

Manual Transmission (MT) - less common, primarily on base models.

Automatic Gearbox Options:

F4A51 (4-speed), W4A51 (4-speed with wider ratio spread for better fuel economy), F5A51 (5-speed INVECS-II Sport Mode Automatic).

All Wheel Drive:

Available on some Ralliart models, typically with a center differential and viscous coupling.

Automatic Transmission Fluid:

Mitsubishi DIA QUEEN ATF SP-II, SP-III, or equivalent (refer to manual for specific type per gearbox).

Manual Transmission Fluid:

API GL-4 or GL-5 SAE 75W-90 gear oil (check manual for exact specification).

📐 Dimensions

Wheelbase Mm:

Approximately 2700-2720 mm (varies slightly by generation)

Length Mm:

Approximately 4820-4920 mm (Sedan), 4850-4950 mm (Wagon)

Width Mm:

Approximately 1780-1800 mm

Height Mm:

Approximately 1420-1480 mm (Sedan), 1490-1550 mm (Wagon)

Passenger Volume Cu Ft:

Around 100-105 cu ft (typical for segment)

Boot Capacity Litres Sedan:

Approximately 470-500 litres

Boot Capacity Litres Wagon:

Approximately 1150-1300 litres (seats up), expandable with seats folded.

Kerb Weight Kg:

Approximately 1500-1700 kg (varies by engine, transmission, and trim)

Gvw Kg:

Refer to vehicle's compliance plate, typically around 2100-2300 kg.

🛡️ Safety Features

Ancap Rating Era:

Likely 4-star ANCAP for models equipped with airbags and ABS, but verification by specific model and year is recommended.

ABS:

Standard on most models, often with Electronic Brake-force Distribution (EBD).

Traction Control:

Available on higher trim levels and Ralliart models.

Stability Control:

Less common on earlier models, may be present on later TJ/KJ generations.

Airbags:

Driver and passenger front airbags standard. Side airbags available on higher trims.

Seatbelts:

Three-point seatbelts with pretensioners for front occupants.

Child Seat Anchors:

ISOFIX mounting points (availability may vary by year and market).

💡 Technology Features

Head Unit Features:

Factory-installed CD players, radio/cassette units, some later models may have optional CD changers or basic digital displays.

Premium Audio Options:

Bose or Clarion premium audio systems available on higher trim levels (Verada).

Cruise Control:

Standard on most models, electronic speed control.

Parking Sensors:

Optional on later models, particularly Verada and higher-spec Magnas.

Bluetooth:

Not commonly integrated into factory head units of this era; aftermarket solutions are usually required.

Auxiliary Input:

Rarely present in factory systems; aftermarket adapters or head unit replacements are common.

Air Conditioning:

Standard on most models, manual or automatic climate control available.

🔧 Maintenance

Oil Change Km:

Every 15,000 km or 12 months, whichever comes first (using synthetic oil).

Air Filter Replacement Km:

Every 30,000 km or 24 months.

Spark Plug Replacement Km:

Platinum-tipped: 90,000 km. Iridium-tipped: 100,000+ km (refer to manual for exact type and interval).

Timing Belt Replacement Km:

For engines with a timing belt (6G72, 6G74), typically 90,000 km or 6 years. Engines with timing chains do not have this interval.

Engine Oil Capacity:

Approx. 4.5-5.0 litres (for 3.5L V6), check dipstick.

Engine Oil Viscosity:

SAE 10W-40 or 10W-30 (refer to manual for climate suitability and specific engine).

Coolant Type:

Mitsubishi Super Long Life Coolant (SLLC) - pink coloured, or equivalent phosphate-based long-life coolant.

Brake Fluid Type:

DOT 3 or DOT 4 (check manual).

Engine:

Head gasket failures on early 6G74 engines (TJ generation) due to coolant leaks. Variable Induction System (VIS) actuator issues can cause rough idling or power loss. Oil leaks from rocker cover gaskets or sump gaskets.

Transmission:

Automatic transmission shifting issues or failure on high-mileage vehicles. Torque converter lock-up problems. Transmission fluid flushes are critical for longevity.

Suspension:

Wear in ball joints, control arm bushes, and sway bar links can lead to knocking noises and poor handling. Rear multi-link suspension can develop worn bushes.

Electrical:

Window regulator failures. Central locking issues. SRS warning light illumination due to faulty occupant detection sensors or clock spring.

Body:

Rust in common areas like wheel arches, sills, and door bottoms, especially in areas with salt exposure.

📚 Vehicle History

Manufacturer:

Mitsubishi Motors Corporation, Japan.

Australian Presence:

Mitsubishi Australia played a significant role in developing and adapting the Magna platform, including significant local engineering input.

Th Kh Generation:

Third generation (TH: 1996-1999, KH: 1999-2001). Introduced new styling, improved V6 engines (3.5L 6G74), and a more refined interior. KH was a facelift with minor updates.

Tj Kj Generation:

Fourth generation (TJ: 2001-2003, KJ: 2003-2005). Significant redesign with 'Gale' styling. Introduced the larger 3.8L 6G75 engine. KJ was a facelift of the TJ with further refinements.

Ralliart Variants:

Performance-oriented versions based on the Magna platform, often featuring more powerful engines, sportier suspension, and AWD.

Manufacturing Location:

Primarily Adelaide, South Australia, Australia (for Magna/Verada). Diamante also produced in Japan.

Production End Date:

Production of the Magna platform ceased in 2005.

🏆 Awards & Recognition

Australian Car Of The Year:

While not winning outright Car of the Year, the Magna platform consistently received praise for its value and features in Australian automotive press.

Safety Awards:

Model specific safety awards depend on equipment and testing protocols of the time; ANCAP ratings provide a benchmark.

Fuel Economy Ratings:

Varies significantly by engine and driving conditions; generally considered average to below average for V6 models compared to later vehicles, but competitive for its era.

Manufacturing Standards:

Built to meet Australian Design Rules (ADRs) and Mitsubishi's global quality standards.