🏷️ Basic Information

Make:

Mazda

Model:

MX-6 / 626

Model Generation:

GD/GV Series

Production Years:

1990-1992

Chassis Codes:

GD (coupe), GV (wagon/sedan variants may exist)

👋 Introduction

Target Audience:

Professional mechanics, DIY enthusiasts, and fleet maintenance operations

Value Proposition:

Provides factory-level repair information, enabling accurate and efficient maintenance, reducing reliance on expensive dealership services.

Comparison:

This manual aims to replicate the depth and accuracy of official Mazda factory workshop manuals, offering a superior alternative to generic repair guides or incomplete online resources.

Comprehensiveness:

Covers all aspects of vehicle service, repair, and maintenance for the specified model years and variants.

Accuracy:

Based on authentic factory documentation, ensuring technical accuracy and adherence to OEM specifications.

📋 Manual Details

Regions Covered:

Likely Global, including North America, Europe, and Japan

Vehicle Variants Covered:

All gasoline engine variants, likely including both coupe (MX-6) and sedan/wagon (626) body styles where applicable

Estimated Page Count:

1500-2500+ (typical for a complete factory-style service manual)

Type:

Comprehensive Service and Repair Manual (Factory Workshop Manual Equivalent)

Language:

English

Format:

Digital (likely PDF, potentially searchable)

📖 Manual Coverage

Powertrain:

Engine Mechanical, Fuel System, Ignition System, Exhaust System, Engine Control System (ECU), Lubrication System, Cooling System

Transmission:

Manual Transmission, Automatic Transmission (including operation, diagnosis, and overhaul)

Drivetrain:

Front Wheel Drive, Drive Shafts, CV Joints, Differential

Suspension:

Front Suspension (MacPherson Strut), Rear Suspension (Independent Multi-link), Shock Absorbers, Springs, Bushings

Steering:

Power Steering System (Hydraulic), Steering Column, Tie Rods, Steering Rack/Gearbox

Brakes:

Front Disc Brakes, Rear Disc/Drum Brakes, ABS (if equipped), Brake Lines, Master Cylinder, Calipers, Parking Brake

Electrical:

12V Battery System, Charging System (Alternator), Starting System (Starter Motor), Lighting System, Fuses, Relays, Wiring Diagrams (Schematics)

Body:

Body Panels, Doors, Hood, Trunk, Glass, Trim, Seats, Interior Components

HVAC:

Heating, Ventilation, and Air Conditioning (AC) System (Components, Refrigerant, Diagnosis)

Diagnostics:

Troubleshooting Guides, Diagnostic Trouble Codes (DTCs) if applicable (OBD-I era), Symptom-based diagnosis

Maintenance:

Oil Changes, Filter Replacements, Spark Plugs, Belts, Hoses, Fluid Checks and Replenishments, Tune-ups

Repair:

Engine Overhaul, Transmission Rebuild, Brake System Service, Suspension Component Replacement, Electrical Component Diagnosis and Repair, Body Panel Repair

Troubleshooting:

Systematic fault finding for common and complex issues across all vehicle systems

Diagnostics:

Component testing, circuit diagnosis using wiring diagrams, using specialized tools

Specifications:

Torque values for critical fasteners, component clearances, fluid capacities, electrical system specifications

Depth:

Expert-level; covers complete disassembly, overhaul, repair, and reassembly of all major components and systems

Precision:

Includes detailed measurements, tolerances, and diagnostic procedures for accurate repairs

Diagnostic Tools:

Specifies required special tools and equipment for diagnostics and repairs

📊 Manual Specifications

Digital Format:

PDF (Portable Document Format), optimized for digital viewing and printing

Searchability:

Likely OCR processed for text search functionality, enabling quick information retrieval

Image Resolution:

High-resolution images, diagrams, and schematics for clarity

Binding:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Code Common:

FE (1.6L I4), FS (2.0L I4), KF (2.5L V6 DOHC)

Engine Type Fe:

1.6L SOHC Inline-4

Engine Type Fs:

2.0L DOHC Inline-4 (often with variable valve timing, S-VT)

Engine Type Kf:

2.5L DOHC V6

Horsepower Fe:

~90-100 HP (Varies by specific market/tuning)

Horsepower Fs:

~120-130 HP (Varies by specific market/tuning, S-VT adds performance)

Horsepower Kf:

~160-170 HP

Torque Kf:

~150-160 lb-ft

Fuel Delivery:

Multi-port Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

Ignition System:

Distributor-based Electronic Ignition, Electronic Ignition (Distributorless on later FS models)

🔧 Transmission

Manual Transmission:

5-speed manual

Automatic Transmission:

4-speed automatic (e.g., F4A-EL)

All Wheel Drive:

Not commonly available on these model years/platforms for MX-6/626, primarily FWD

Limited Slip Differential:

Optional on some performance variants (e.g., MX-6 GT with V6, or specific 626 trims)

📐 Dimensions

Body Styles:

Coupe (MX-6), Sedan/Wagon (626)

Wheelbase:

Approx. 100.4 inches (2550 mm)

Length:

Approx. 175.0 - 180.0 inches (4445 - 4572 mm) depending on body style

Width:

Approx. 67.9 inches (1725 mm)

Height:

Approx. 52.5 - 54.0 inches (1333 - 1372 mm) depending on body style

Curb Weight:

Approx. 2700 - 3200 lbs (1225 - 1450 kg) depending on engine and equipment

Gross Vehicle Weight Rating:

Typically around 4000 lbs (1814 kg)

🛡️ Safety Features

NHTSA Ratings:

Specific ratings vary by year and testing methodology; typically rated average to good for the era.

ABS:

Anti-lock Braking System (Optional on some trims, standard on higher-end models)

Traction Control:

Not commonly available on this generation

Airbags:

Driver's side airbag (often standard by 1992), passenger airbag optional or unavailable depending on market/trim.

Seatbelts:

3-point front seatbelts, 2-point rear lap belts (3-point rears on some wagons/sedans)

Crumple Zones:

Designed with front and rear crumple zones for energy absorption

💡 Technology Features

Audio System:

Factory AM/FM stereo with cassette player, optional CD player on higher trims.

Display:

Analog gauges, basic climate control displays.

Cruise Control:

Available on most trims.

Anti Lock Brakes:

As mentioned in safety, an available technology for improved braking control.

Connectivity Features:

Basic at best for the era; primarily focused on core vehicle functions, not modern connectivity.

🔧 Maintenance

Oil Change:

Every 3,750 - 5,000 miles (6,000 - 8,000 km) or 6 months, whichever comes first.

Air Filter Replacement:

Every 15,000 - 30,000 miles (24,000 - 48,000 km)

Spark Plug Replacement:

Every 30,000 - 60,000 miles (48,000 - 96,000 km), depending on plug type (copper vs. platinum).

Timing Belt Replacement:

Crucial for FS (DOHC 2.0L) and KF (V6) engines. Typically every 60,000 - 90,000 miles (96,000 - 145,000 km). Failure can cause catastrophic engine damage.

Engine Oil Spec:

API SG or SH, SAE 5W-30 or 10W-30 recommended (check owner's manual for specific ambient temperature ranges)

Coolant Type:

Ethylene glycol based antifreeze, typically a 50/50 mix with distilled water.

Transmission Fluid Manual:

API GL-4 SAE 75W-90 or 80W-90 gear oil.

Transmission Fluid Automatic:

Dexron III or equivalent (e.g., MERCON compatible)

Power Steering Fluid:

ATF Dexron II/III or specific Mazda power steering fluid.

Engine Oil Leaks:

Common valve cover gasket and rear main seal leaks on higher mileage engines.

Cooling System:

Plastic radiator end tanks can become brittle and crack, leading to leaks. Thermostat and fan switch failures.

Suspension Wear:

Worn control arm bushings, ball joints, and tie rod ends can lead to steering looseness and tire wear.

Electrical Corrosion:

Ground points, fuse box connections, and lighting connectors can suffer from corrosion over time.

Exhaust System:

Rust and corrosion of exhaust pipes, muffler, and catalytic converter.

📚 Vehicle History

Mazda Performance Image:

Mazda has a long history of producing engaging driving machines, often focusing on driver-centric design and sportiness, as exemplified by the RX-7 and MX-5 Miata.

Mx6 Legacy:

The MX-6 nameplate represented Mazda's sporty coupe offering, built on the platform shared with the mainstream 626 sedan/wagon.

Gd Gv Platform:

This generation (GD for MX-6 coupe, GV for 626 variants) marked a significant styling and engineering update, featuring advanced suspension and optional V6 power.

Manufacturing Location:

Primarily manufactured in Japan.

🏆 Awards & Recognition

Editorial Reviews:

While specific awards for these model years are less commonly cited than later generations, the MX-6 and 626 were generally well-regarded for their sporty handling, comfortable ride, and stylish design.

Consumer Reports Historical:

Consumer Reports reviews from this period often highlighted good reliability for Mazda vehicles, with some specific areas of concern noted in various reports.