🏷️ Basic Information

Make:

Mazda

Model:

121

Model Variant:

DB

Year:

1993

Chassis Code:

DB

Engine Code:

B3 (1.3L)

👋 Introduction

Segment:

Subcompact hatchback.

Target Audience:

Budget-conscious consumers seeking economical and reliable transportation, especially in urban environments.

Key Competitors:

Ford Fiesta, Volkswagen Golf, Opel Corsa, Honda Civic (earlier generations), Toyota Starlet.

Design Philosophy:

Compact, fuel-efficient, practical, and straightforward design.

Value Proposition:

Affordable purchase price and low running costs.

📋 Manual Details

Engine:

Yes

Transmission:

Yes

Brakes:

Yes

Suspension:

Yes

Steering:

Yes

Electrical System:

Yes

Body And Chassis:

Yes

Heating And Air Conditioning:

Yes

Interior Components:

Yes

Troubleshooting:

Yes

Estimated Pages:

500+

Type:

Service and Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, cylinder head, pistons, crankshaft, camshaft, timing belt replacement, lubrication system, cooling system.

Engine Fuel And Ignition:

Fuel injection system (MPI), fuel pump, injectors, fuel filter replacement, ignition system, spark plugs, distributor, coil testing.

Transmission Manual:

Clutch system, gearbox overhaul, gear selection, drive shafts, clutch fluid replacement.

Transmission Automatic:

Automatic transmission fluid (ATF) change, torque converter, internal components (if applicable to the model variant covered).

Brakes Hydraulic:

Brake fluid bleeding, master cylinder, brake booster, caliper replacement, wheel cylinder servicing, brake line repair.

Brakes Parking:

Parking brake mechanism, cable adjustment and replacement.

Suspension Front:

MacPherson strut assembly, control arms, ball joints, bushings, springs, shock absorbers replacement and diagnosis.

Suspension Rear:

Torsion beam axle, bushings, shock absorbers replacement and diagnosis.

Steering System:

Power steering pump, steering rack, tie rod ends, steering column, wheel alignment procedures.

Electrical Charging System:

Alternator testing and replacement, battery maintenance and testing, wiring diagrams.

Electrical Starting System:

Starter motor testing and replacement, ignition switch.

Electrical Lighting System:

Headlights, taillights, interior lighting, bulb replacement, wiring for lighting circuits.

Electrical Accessories:

Wipers, horn, power windows, central locking (if equipped), fuses, relays.

Body Exterior:

Body panel removal and installation, door mechanisms, hood and trunk latches, glass replacement.

Body Interior:

Dashboard removal, seat removal, trim panel replacement, carpet.

HVAC System:

Heater core, blower motor, air conditioning system (refrigerant handling not covered extensively due to safety, but component replacement likely detailed), control panel.

Preventative Maintenance:

Oil change intervals, filter replacement (oil, air, fuel), spark plug replacement, coolant flush, brake fluid change, transmission fluid change, drive belt inspection and replacement.

Troubleshooting Diagnostics:

Symptoms-based troubleshooting guides, diagnostic procedures for common issues (e.g., hard starting, poor performance, unusual noises), diagnostic trouble codes (DTCs) if applicable to this era.

Major Repairs:

Engine rebuilding, transmission overhaul, suspension component replacement, brake system component replacement, exhaust system repair.

Component Replacement:

Detailed step-by-step instructions for replacing virtually all serviceable parts.

Electrical Diagnostics:

Fuse and relay testing, battery voltage checks, starter current draw tests, alternator output tests, basic wiring troubleshooting using provided diagrams.

Torque Specifications:

Crucial torque values for engine, chassis, and suspension fasteners.

Special Tools:

Identification of any special tools required for specific procedures.

Depth:

Comprehensive, covering basic to advanced repair and diagnostic procedures. Suitable for professional technicians and advanced DIY mechanics.

Diagrams And Illustrations:

Extensive use of exploded views, line drawings, and schematic diagrams to illustrate procedures and components.

Wiring Diagrams:

Detailed electrical wiring diagrams for all major systems, crucial for troubleshooting.

📊 Manual Specifications

Compatibility:

Adobe Acrobat Reader or compatible PDF viewer.

Searchability:

Fully searchable text for quick information retrieval.

Printability:

Printable pages for use in a workshop environment.

Resolution:

High-resolution scans ensuring clarity of text and diagrams.

Binding:

N/A (Digital PDF)

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Code:

B3

Engine Type:

Inline 4-cylinder, SOHC

Displacement:

1324 cc (1.3 Liters)

Horsepower:

63 hp @ 5500 rpm (approx.)

Torque:

100 Nm @ 3500 rpm (approx.)

Induction:

Multi-Point Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline

Bore X Stroke:

71.0 mm x 83.6 mm

Compression Ratio:

9.5:1

🔧 Transmission

Type:

5-speed Manual Transmission

Type:

4-speed Automatic Transmission

Clutch Type:

Dry, single plate

Manual:

API GL-4, SAE 75W-90

Automatic:

Dexron III equivalent

📐 Dimensions

Length:

3860 mm (approx.)

Width:

1605 mm (approx.)

Height:

1385 mm (approx.)

Wheelbase:

2400 mm (approx.)

Track Width Front:

1370 mm (approx.)

Track Width Rear:

1375 mm (approx.)

Curb Weight:

880-930 kg (depending on transmission and equipment)

Gross Vehicle Weight:

1350 kg (approx.)

Trunk Capacity:

Variable, depending on rear seat configuration (typically around 250-300 liters)

Wheel Size:

13 or 14 inch alloy or steel wheels

Tire Size Standard:

165/70 R13 or 175/65 R14 (common fitments)

Bolt Pattern:

4x100

🛡️ Safety Features

Crash Test Data:

Limited official crash test data available for this specific model year and region. Likely basic safety structure for its era.

Brakes:

Front disc brakes, rear drum brakes (standard).

ABS:

Optional on some higher trims or specific markets.

Seatbelts:

Front seatbelts with pre-tensioners (likely standard). Rear seatbelts (lap or three-point depending on seating position and market).

Airbags:

Driver-side airbag was a rare option or not available on many base models for this year.

Body Structure:

Reinforced impact zones in doors and pillars, crumple zones.

💡 Technology Features

Audio System:

Basic AM/FM radio with cassette player. Speaker configuration typically 2 or 4 speakers.

Display:

Analog gauges for speedometer, tachometer (optional), fuel, and temperature. No digital displays.

Cruise Control:

Rarely available, likely only on higher trim levels in specific markets.

Parking Sensors:

Not available.

Bluetooth:

Not available.

Usb Ports:

Not available.

🔧 Maintenance

Engine Oil And Filter:

Every 10,000 km or 12 months, whichever comes first.

Air Filter:

Every 20,000 km or 24 months, or more frequently under dusty conditions.

Fuel Filter:

Every 40,000 km or 48 months.

Spark Plugs:

Every 40,000 km or 48 months (NGK BPR5EY or equivalent).

Coolant:

Every 40,000 km or 48 months (Mazda FL22 or equivalent long-life coolant).

Brake Fluid:

Every 24 months, regardless of mileage (DOT 3 or DOT 4 specification).

Transmission Fluid Manual:

Check level every 20,000 km. Change if slipping or discolored, typically every 60,000 km.

Transmission Fluid Automatic:

Check level regularly. Change fluid and filter every 40,000 km or 48 months.

Timing Belt:

Critical replacement interval: Every 90,000 km or 6 years. Failure can cause catastrophic engine damage.

Engine Oil Capacity:

3.5 Liters (with filter change)

Engine Oil Viscosity:

10W-30 or 5W-30 (depending on climate)

Coolant Capacity:

5.5 Liters

Engine Idling:

Idle control valve issues can lead to rough idling or stalling.

Electrical Corrosion:

Older wiring harnesses and connectors can experience corrosion, leading to intermittent electrical faults.

Suspension Wear:

Bushings and ball joints are common wear items, especially on the front suspension.

Exhaust Rust:

Rusting of the exhaust system, particularly in areas with road salt, is common.

Radiator Leaks:

Older radiators can develop leaks, especially at the end tanks.

Door Lock Mechanisms:

Interior door lock mechanisms can become stiff or break.

📚 Vehicle History

Mazda Origins:

Mazda Motor Corporation, a Japanese automaker with a long history dating back to 1920. Known for innovation and diverse model range.

First Generation:

The Mazda 121 nameplate was used for several different vehicles globally, often rebadged Ford models. The DB generation (1991-1996) was developed in collaboration with Ford and was based on the Ford Fiesta Mk3 platform.

Db Generation Focus:

This specific generation (DB) was positioned as an entry-level compact car, emphasizing affordability and fuel economy.

Manufacturing Location:

Primarily manufactured in Spain (under Mazda's agreement with Ford).

Db Generation:

1991 - 1996

🏆 Awards & Recognition

Awards Received:

The Mazda 121 (DB) did not receive significant industry awards due to its positioning as a budget-friendly, mass-market vehicle.

Fuel Economy Ratings:

Generally received good fuel economy ratings for its class and era, a key selling point.

Emissions Standards:

Compliant with prevailing emissions standards for the year 1993 in its primary markets (e.g., Euro I, EPA standards where applicable).