🏷️ Basic Information

Make:

Mitsubishi

Model:

Sigma

Year:

1996-1997

Generation:

Third Generation (E10-E20)

Chassis Codes:

E15A, E16A, E17A (depending on specific variant and market, though often broadly referred to as E1x series for this generation)

👋 Introduction

Positioning:

Premium sedan positioned as a comfortable, stylish, and capable vehicle in its segment, often competing with models from Toyota, Nissan, and Honda. Known for its spacious interior and smooth ride.

Competitors:

Toyota Avalon/Camry, Nissan Maxima, Honda Accord/Legend, Ford Taurus, Buick LeSabre/Park Avenue.

Distinguishing Features:

The Sigma (often known as Diamante in North America and Verada in Australia) from this era was praised for its elegant styling, refined interior, powerful V6 engines, and advanced features for its time, including optional all-wheel drive and sophisticated suspension systems.

User Benefits:

Enables DIY repairs and maintenance, saving significant costs. Provides access to factory-level diagnostic and repair procedures, ensuring correct maintenance and extending vehicle lifespan. Crucial for troubleshooting complex issues and performing detailed component overhauls.

Digital Format Benefits:

Electronic format allows for selective printing of specific sections, avoiding contamination of the primary file with workshop dirt. Easier storage and access compared to bulky paper manuals.

📋 Manual Details

Regions Covered:

Likely global markets where the Mitsubishi Sigma was sold, with specific focus on North America and Australia where it was prominently marketed under various names (e.g., Diamante in North America, Verada in Australia).

Vehicle Variants:

All Models, All Engines, All Trim Levels, All Transmission Types

Estimated Page Count:

Hundreds (specific number not provided, but typical for comprehensive workshop manuals)

Type:

Workshop Repair Service Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Powertrain:

Engine Service/Repair, Transmission Service/Repair, Differential/Drive, Axle

Chassis:

Brake System, Suspension, Steering, Chassis/Body

Electrical And Engine Management:

Wiring Diagram, Electrical System, Engine Control System, Fuel Injection/Fuel System, Emission System

Comfort And Convenience:

Cooling System, Heater/Air Conditioner, Interior, Restraint System

Body And Interior:

Chassis/Body, Interior, Restraint System (airbags, seatbelts).

Fuel And Emissions:

Fuel Injection/Fuel System, Emission System (catalytic converter, EVAP, sensors).

Climate Control:

Cooling System, Heater/Air Conditioner (HVAC) system components, operation, and diagnostics.

Maintenance And Diagnostics:

General Maintenance, Periodic Lubrication, Troubleshooting, Diagnostic Procedures, Electrical Service Procedures

Repair And Rebuild:

Disassembly, Assembly, Cleaning, Reinstalling Procedures, Detailed Repair Procedures with substeps, Step-by-step instructions

Troubleshooting Guides:

Comprehensive troubleshooting charts and procedures for diagnosing common and complex faults across all vehicle systems.

Body Repair:

Information on body panel removal/installation, collision repair guidelines, and potentially corrosion prevention measures.

Paint And Finish:

While not a primary focus, some manuals may include basic information on paint codes and touch-up procedures.

Depth:

Professional Technician Level: Comprehensive diagnostic, repair, and maintenance information as used by local service/repair shops. Covers everything from basic checks to complex system overhauls.

Diagnostic Procedures:

Detailed diagnostic flowcharts, OBD-I/OBD-II (depending on market implementation and specific model year) trouble code interpretations, and component testing procedures.

Specifications And Tolerances:

Precise technical specifications, torque values for fasteners, fluid capacities, electrical resistance values, and operational tolerances for all components.

Wiring Diagrams Detail:

Comprehensive wiring diagrams illustrating the electrical layout for all major systems, including engine management, lighting, power accessories, and safety systems, often color-coded and with component identification.

📊 Manual Specifications

Print Quality:

Full Printable

Zoom Capability:

YES (Zoom IN/OUT)

Searchability:

Likely text-searchable PDF, allowing quick finding of specific terms or procedures.

Binding Type:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

Delivery Method:

Instant Download

Software Requirements:

Adobe PDF Reader, WinZip

Operating Systems:

All Versions of Windows & Mac

⚙️ Engine Specifications

Engine Options:

The Mitsubishi Sigma in these years primarily featured V6 engines. Common options included: - 3.0L SOHC V6 (6G72) - 3.5L SOHC V6 (6G74 - often found in higher trims or specific markets)

Horsepower Torque:

Engine output varied by specific engine and market. For the 3.0L 6G72, expect outputs around 170-190 hp and 175-200 lb-ft of torque. The 3.5L 6G74 typically offered higher figures, closer to 200-230 hp and 210-230 lb-ft of torque. (Exact figures require consulting specific market data or the manual itself).

Fuel Delivery:

Multi-point Fuel Injection (MPI) or Electronic Fuel Injection (EFI) for all gasoline engines.

Common Engine Codes:

6G72 (3.0L V6), 6G74 (3.5L V6) - these are Mitsubishi's family of V6 engines common across their lineup during this period.

🔧 Transmission

Transmission Types:

Automatic Transmission was the predominant offering, typically a 4-speed electronically controlled automatic.

Manual Transmission Availability:

Manual transmissions were less common for the Sigma/Diamante/Verada models in this generation, particularly in North American markets. Availability might be limited to specific global markets or performance variants.

Transmission Features:

Features like 'Sport Mode' or 'Econo Mode' for varying shift patterns were common in the automatic transmissions.

Transmission Gear Ratios:

Specific gear ratios for the 4-speed automatic transmission would be detailed in the manual, critical for understanding performance characteristics and for any transmission overhaul work.

📐 Dimensions

Body Styles:

Typically offered as a 4-door Sedan. Some markets may have had a 2-door Coupe variant or a station wagon (often badged differently).

Curb Weight:

Curb weight generally ranged from approximately 3,500 lbs to 3,800 lbs (1590 kg to 1725 kg), depending on engine and equipment.

Wheelbase:

Approximately 107.1 inches (2720 mm), which contributed to a comfortable ride and stable handling.

Front Rear Track:

Detailed track width specifications would be present in the manual, important for alignment procedures and wheel/tire fitment.

🛡️ Safety Features

Crash Test Performance:

Specific crash test ratings (e.g., NHTSA, IIHS) for the 1996-1997 Sigma are not as widely documented as more recent vehicles. However, this generation typically featured dual front airbags, anti-lock brakes (ABS) as standard or optional, and reinforced side-impact door beams.

Active Safety:

Anti-lock Braking System (ABS), Traction Control System (TCS - often optional on higher trims).

Passive Safety:

Dual front airbags, Crumple zones, Side-impact door beams, Seatbelt pretensioners.

💡 Technology Features

Audio System:

Factory-installed AM/FM stereo with cassette tape player, and often a CD player on higher trims or optional upgrades. Speaker configurations varied by trim level.

Cruise Control:

Standard on most models or trims, providing driver convenience on highways.

Power Accessories:

Power windows, power door locks, power mirrors, and often power adjustable front seats were available, enhancing convenience.

Headlight Bulb Types:

Details on headlight, taillight, and interior lighting bulb types and replacement procedures would be included.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000 to 7,500 miles (8,000 to 12,000 km) or 6 months, whichever comes first, depending on driving conditions and oil type used. The manual will specify exact intervals and oil viscosity grades.

Timing Belt Replacement:

For V6 engines (6G72, 6G74), timing belt replacement is critical, typically recommended every 60,000 to 90,000 miles (96,000 to 144,000 km). Failure to do so can result in catastrophic engine damage. The manual will detail the exact interval and procedure, including the need to replace associated components like water pump and tensioners.

Engine Oil:

Typically SAE 5W-30 or 10W-30 synthetic or semi-synthetic engine oil meeting API service classifications like SG, SH, or SJ. Specific viscosity and API rating will be detailed in the manual.

Coolant:

A 50/50 mixture of high-quality ethylene glycol-based antifreeze and deionized water. The manual will specify the correct type of coolant (e.g., green, pink) and its properties.

Transmission Fluid:

ATF SP-III or equivalent (for 4-speed automatic transmissions). It is crucial to use the specified fluid to ensure proper operation and longevity of the automatic transmission. Manuals often list specific part numbers.

Brake Fluid:

DOT 3 or DOT 4 brake fluid, depending on the specific hydraulic system requirements. Manual will specify the exact type and fluid specification.

Power Steering Fluid:

Specific power steering fluid type, often ATF Dexron II or equivalent, as recommended by Mitsubishi. Incorrect fluid can damage the power steering system.

Common Wear Items:

As with many vehicles of this age, common issues can include: - Age-related rubber component degradation (hoses, belts, bushings). - Automatic transmission solenoid issues or torque converter problems. - HVAC system components (blower motor, A/C compressor, blend door actuators). - Ignition system components (spark plugs, coils, wires) leading to misfires. - Suspension wear (ball joints, tie rod ends, bushings) affecting ride quality and alignment. - Potential for head gasket issues on some V6 engines if maintenance is neglected.

Oil Filter Example:

While specific part numbers vary by manufacturer and filter type (OEM, aftermarket), the manual would reference the correct Mitsubishi part number or equivalent specification for the oil filter (e.g., MD069782 or similar).

📚 Vehicle History

Mitsubishi Legacy:

Mitsubishi Motors has a long history in automotive manufacturing, with a focus on robust engineering and diverse product offerings ranging from small economy cars to heavy-duty trucks and SUVs. The Sigma/Diamante/Verada lineage represents their push into the premium and mid-to-full-size sedan market.

Sigma Diamante Verada Lineage:

The Mitsubishi Sigma (sold globally under names like Diamante and Verada) was developed to compete in the large family car segment. The third generation (1990-1996, with 1996-1997 being the tail end of this generation and potentially overlap with the next) was a significant step forward in styling and technology for Mitsubishi, featuring a more aerodynamic design and updated powertrains.

Manufacturing Locations:

Primary production for this generation was typically in Japan, with some models potentially assembled in other countries depending on the target market.