🏷️ Basic Information

Make:

Mazda

Model:

MX-3 (Eunos 30X)

Market Variant:

Eunos 30X

Chassis Code:

EC

Engine Codes:

B6304FS (1.8L V6), K8-DE (1.6L DOHC)

👋 Introduction

Segment:

Compact Sports Coupe / Personal Luxury Coupe

Target Audience:

Enthusiasts seeking a stylish, V6-powered, front-wheel-drive coupe with accessible maintenance

Competitors:

Honda Prelude, Toyota Celica, Mitsubishi Eclipse, Nissan 240SX (S13)

Differentiating Factors:

Unique V6 engine option for its class, distinctive styling, Mazda's reputation for handling

Purpose:

To provide comprehensive repair, maintenance, and diagnostic information for Mazda MX-3 (Eunos 30X) V6 models.

📋 Manual Details

Model Years:

1991-1998

Engine Coverage:

1.8L V6 DOHC (B6304FS), 1.6L DOHC (K8-DE)

Region Coverage:

Global (likely based on factory specifications, adaptable to regional variations)

Estimated Pages:

Hundreds (as stated in product description)

Type:

Service Repair Workshop Manual

Language:

English (presumed from context)

Format:

Downloadable PDF

📖 Manual Coverage

Powertrain:

Engine (1.8L V6, 1.6L DOHC), Fuel System, Ignition System, Exhaust System, Cooling System, Lubrication System, Drivetrain (Front-Wheel Drive)

Chassis:

Suspension (Front/Rear), Steering System, Braking System (Front Disc/Rear Disc or Drum), Wheels & Tires

Electrical:

Engine Control Module (ECM), Body Control Module (BCM), Lighting System, Instrumentation, Power Accessories, Audio System, Anti-theft System (if applicable)

Body And Frame:

Body Exterior, Interior Trim, Glass, Seals, Bumpers, Chassis Frame

Maintenance:

Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements, Spark Plug Replacement, Belt Adjustments/Replacement

Repair:

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

Troubleshooting:

Diagnostic Flowcharts, Symptom-Based Troubleshooting, Error Code Interpretation (OBD-I likely), Component Testing

Installation:

Component Installation, Accessory Installation (if factory-specified)

Depth:

Comprehensive (from basic maintenance to complete engine/transmission rebuilds)

Diagnostics:

Advanced diagnostic procedures, wiring diagrams, component testing specifications

Illustrations:

Detailed photos, exploded diagrams, schematics

📊 Manual Specifications

Format:

PDF

Searchable:

Yes (implied by PDF, but actual searchability depends on OCR quality)

Print Capability:

Printable (single pages or entire manual)

Binding:

Digital Download (No physical binding)

Paper Type:

N/A (Digital)

Usage License:

Lifetime usage on multiple devices, no expiry

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated V6, 24-valve DOHC

Displacement:

1845 cc (1.8 Liters)

Bore X Stroke:

75.0 mm x 69.2 mm (approximate, requires verification)

Compression Ratio:

9.0:1 (typical for this era)

Horsepower:

130 hp @ 6000 rpm (approximate)

Torque:

115 lb-ft @ 4500 rpm (approximate)

Fuel System:

Multi-point Fuel Injection (MPI)

Ignition System:

Distributorless Ignition System (DIS) or Distributor-based system (variant dependent)

Cooling System:

Liquid-Cooled, Pressurized

Engine Mounting:

Transverse

Engine Type:

Naturally Aspirated Inline-4, DOHC

Displacement:

1597 cc (1.6 Liters)

Horsepower:

113 hp @ 6500 rpm (approximate)

🔧 Transmission

Transmission Type:

5-Speed Manual

Transmission Type:

4-Speed Automatic

Drive Layout:

Front-Wheel Drive (FWD)

Clutch Type:

Hydraulic Actuation

📐 Dimensions

Length:

4295 mm (169.1 in)

Width:

1700 mm (66.9 in)

Height:

1355 mm (53.3 in)

Wheelbase:

2575 mm (101.4 in)

Front Track:

1460 mm (57.5 in) (approximate)

Rear Track:

1450 mm (57.1 in) (approximate)

Curb Weight:

1170-1230 kg (2579-2712 lbs) (depending on configuration)

🛡️ Safety Features

Crash Test Ratings:

Not prominently rated by NHTSA/IIHS in modern standards, relied on Japanese domestic market standards of the era.

Brakes:

Front Ventilated Discs, Rear Drums or Discs (model dependent)

ABS:

Available (optional on some trims)

Airbags:

Driver Airbag (standard on later models, optional early)

Seat Belts:

3-point front seatbelts with pretensioners, 3-point rear seatbelts

💡 Technology Features

Audio System:

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

Climate Control:

Manual or optional automatic climate control.

Cruise Control:

Available (optional on some trims)

Connectivity Features:

Basic connectivity for the era, primarily focused on audio and power accessories.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles or 6 months (typical for era, consult manual)

Air Filter Replacement:

Every 15,000-30,000 miles or as needed (consult manual)

Spark Plug Replacement:

Every 30,000-60,000 miles (depending on plug type, consult manual)

Timing Belt Replacement:

Every 60,000-90,000 miles or 5-7 years (CRITICAL for V6 interference engine, consult manual for exact interval)

Engine Oil:

API SG/SH, SAE 5W-30 or 10W-30 (check manual for specific viscosity and capacity)

Coolant:

Mazda Super Long Life Coolant or equivalent ethylene glycol-based coolant (50/50 mix, consult manual for capacity)

Brake Fluid:

DOT 3 or DOT 4 (consult manual for specific type and capacity)

Transmission Fluid Manual:

API GL-4, SAE 75W-90 or 75W-85 (check manual for specific capacity)

Transmission Fluid Automatic:

Mazda ATF-MV or equivalent (consult manual for capacity)

Engine:

Timing belt failure (if not replaced at intervals), oil leaks from valve covers and oil pan, minor coolant leaks.

Suspension:

Worn control arm bushings, strut mounts, ball joints due to age and mileage.

Electrical:

Corrosion in electrical connectors, intermittent issues with power windows, HVAC blower motor resistor.

Body:

Rust in wheel wells, rocker panels, and around rear window seals.

📚 Vehicle History

Brand Focus:

Mazda has a long history of producing engaging and sporty vehicles, often with innovative engineering.

Generation:

First Generation (EC)

Introduction Year:

1991

Discontinuation Year:

1998

Manufacturing Location:

Japan

Facelift Years:

Minor styling updates occurred, particularly around 1994/1995.

🏆 Awards & Recognition

Awards:

While the MX-3 itself may not have garnered specific major awards in this period, Mazda as a brand was recognized for its engineering and driving dynamics, contributing to the model's appeal.