🏷️ Basic Information

Make:

Mazda

Model:

MX-5 Miata

Generation Code:

NB

Production Years Covered By Manual:

1999-2002

👋 Introduction

Vehicle Segment:

Lightweight, rear-wheel-drive sports car, roadster.

Key Selling Points:

Affordable sports car experience, balanced handling, open-top motoring, reliability, enthusiast appeal.

Key Competitors:

Porsche Boxster, BMW Z3, Honda S2000 (to some extent), Triumph Spitfire (historically), MG MGF.

Manual Value Proposition:

Empowers owners to perform their own maintenance and repairs, saving significant costs on labor, and providing in-depth knowledge for proper care.

Manual Update Status:

New & Updated, indicating current data and relevance.

📋 Manual Details

Manual Type:

Complete Workshop Repair Manual / Service Manual

Language:

English

Format:

Digital Download (PC, MAC, Tablets, Smartphones)

Page Count:

Extensive (Specific number not provided, but described as 'in-depth' and 'full professional quality')

📖 Manual Coverage

Engine Mechanical:

Detailed breakdown, diagnosis, and repair procedures for all engine components, including timing belt/chain, pistons, crankshaft, camshafts, cylinder head, valve train, lubrication system, cooling system.

Engine Management:

Fuel injection system (EFI), ignition system, emissions control systems (catalytic converter, EGR), engine control unit (ECU) diagnosis and troubleshooting, sensor testing (O2, MAP, TPS, CKP, CMP).

Transmission Manual:

Complete overhaul, clutch system service, gear selection mechanisms, internal component inspection and replacement, lubrication.

Transmission Automatic:

Diagnosis, fluid and filter service, torque converter inspection, hydraulic control system, electronic control module (ECM) interface.

Drivetrain:

Differential, driveshafts, CV joints, wheel bearings, rear axle assembly.

Suspension:

Front and rear suspension components, shock absorbers, springs, control arms, bushings, ball joints, sway bars, alignment specifications.

Steering:

Power steering system (pump, rack and pinion, lines), steering column, tie rods, steering wheel removal and installation.

Brakes:

Front and rear brake systems (disc brakes), brake calipers, rotors, pads, brake lines, master cylinder, ABS system diagnosis and components.

Electrical System:

Battery, charging system (alternator), starting system (starter motor), lighting (headlights, taillights, interior), fuses, relays, wiring diagrams, body control modules (BCM).

Body And Interior:

Exterior body panels, doors, hood, trunk lid, bumpers, interior trim, seats, dashboard, HVAC system (heating, ventilation, air conditioning), convertible top mechanism and service.

Wheels And Tires:

Wheel specifications, tire sizes, lug nut torque, tire pressure recommendations, wheel bearing replacement.

Routine Maintenance:

Oil changes, fluid checks and replacements (coolant, brake fluid, power steering fluid, transmission fluid), filter replacements (oil, air, fuel, cabin), spark plug replacement, battery maintenance.

Diagnostics And Troubleshooting:

Systematic approach to identifying and resolving common and complex issues, using diagnostic trouble codes (DTCs), circuit testing, and component testing.

Repair And Rebuild:

Step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation for nearly all vehicle systems.

Component Replacement:

Detailed guides for replacing common wear items and faulty components such as brake pads, rotors, alternators, starters, water pumps, radiators, fuel pumps, sensors, and more.

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all major systems, including power distribution, engine control, lighting, HVAC, audio, and safety features, aiding in electrical fault finding.

Specifications And Tolerances:

Precise torque values, engine clearances, alignment angles, fluid capacities, and other critical specifications required for accurate repairs and adjustments.

Depth Of Coverage:

Comprehensive, covering everything from basic user maintenance to advanced engine and transmission overhauls, including detailed diagnostic procedures.

Target Audience:

DIY enthusiasts, home mechanics, and professional technicians.

📊 Manual Specifications

File Type:

Digital Download (likely PDF, but compatible with multiple devices)

Searchability:

Searchable text content for quick access to specific information.

Accessibility:

Viewable on PC, MAC, Tablets, and Smartphones, ensuring flexibility.

Image Quality:

High-quality illustrations, diagrams, and photographs.

Text Clarity:

Clear and legible text for easy reading and comprehension.

Binding:

Not Applicable (Digital Download)

Paper:

Not Applicable (Digital Download)

⚙️ Engine Specifications

Engine Code Example:

BP-Z3 (common for this era)

Engine Type:

Inline 4-cylinder, DOHC, 16-valve

Displacement Common:

1.8L (1839 cc) and 1.6L (1598 cc) depending on market and trim.

Bore X Stroke Example 1.8L:

83.0 mm x 85.0 mm

Compression Ratio Example 1.8L:

9.5:1

Horsepower 1.8L Approx:

140-145 hp @ 6000 rpm (depending on market tuning)

Torque 1.8L Approx:

117-120 lb-ft @ 4500 rpm (depending on market tuning)

Horsepower 1.6L Approx:

115-120 hp (depending on market tuning)

Torque 1.6L Approx:

100-105 lb-ft (depending on market tuning)

Fuel Delivery:

Electronic Fuel Injection (EFI), Sequential Multi-port Fuel Injection (SMPI)

Fuel Type:

Unleaded Gasoline (Octane rating typically 91+ recommended for optimal performance)

Fuel Pump Type:

In-tank electric fuel pump

🔧 Transmission

Transmission Type Standard:

5-speed Manual Transmission

Transmission Type Optional:

4-speed Automatic Transmission (availability varies by market and trim)

Clutch Type:

Dry single-plate clutch

Manual Transmission Fluid Spec:

GL-4 75W-90 Gear Oil (e.g., Mazda Genuine Gear Oil, Castrol SYNTRANS) - Always verify with manual.

Automatic Transmission Fluid Spec:

Dexron III / Mercon (e.g., Mazda ATF-III, Mobil ATF 3309) - Always verify with manual.

📐 Dimensions

Length:

Approx. 3955 mm (155.7 in)

Width:

Approx. 1680 mm (66.1 in)

Height:

Approx. 1230 mm (48.4 in)

Wheelbase:

Approx. 2265 mm (89.2 in)

Ground Clearance:

Approx. 130 mm (5.1 in)

Curb Weight:

Approx. 1050-1150 kg (2315-2535 lbs) depending on engine and equipment.

Gross Vehicle Weight Rating:

Approx. 1400 kg (3086 lbs) - typical

Towing Capacity:

Not Recommended/Specified for towing.

🛡️ Safety Features

NHTSA Front Impact Driver:

Likely 4-star (based on general NB generation ratings, specific year may vary)

NHTSA Front Impact Passenger:

Likely 4-star (based on general NB generation ratings, specific year may vary)

IIHS Front Offset:

Likely Acceptable or Good (based on general NB generation ratings, specific year may vary)

ABS:

Anti-lock Braking System (ABS) available, standard on some trims/markets.

Traction Control:

Traction Control System (TCS) available on some models.

Stability Control:

Electronic Stability Control (ESC) was not standard or widely available during this generation, but check specific model. Mazda's system is called DSC (Dynamic Stability Control).

Airbags:

Driver and passenger front airbags. Side airbags were an option on some models.

Seatbelts:

Three-point inertia-reel seatbelts, pretensioners.

Roll Protection:

Reinforced A-pillars and pop-up roll hoops behind the headrests for occupant protection in a rollover.

💡 Technology Features

Audio System:

Factory-installed AM/FM stereo with CD player, typically 4 or 6 speaker system. Cassette player was an option early in the NB generation.

Climate Control:

Manual climate control for heating and air conditioning. Automatic climate control was not common in this era.

Gauges And Instrumentation:

Classic analog gauges: speedometer, tachometer, fuel gauge, temperature gauge. Warning lights for critical systems.

Cruise Control:

Optional on most trims, standard on some higher-spec models.

Auxiliary Input:

No factory auxiliary input or Bluetooth connectivity; aftermarket solutions are common.

🔧 Maintenance

Oil Change Interval:

Every 7,500 miles (12,000 km) or 6 months, whichever comes first, using synthetic or semi-synthetic oil. Severe driving conditions may require more frequent changes.

Air Filter Replacement Interval:

Inspect every 7,500 miles (12,000 km), replace as needed or every 15,000 miles (24,000 km).

Engine Coolant Replacement Interval:

First change at 60,000 miles (96,000 km) or 4 years, then every 30,000 miles (48,000 km) or 2 years.

Spark Plug Replacement Interval:

Typically 60,000 miles (96,000 km) for iridium or platinum plugs, check specific type. Original plugs were often copper or platinum.

Timing Belt Replacement Interval:

Not applicable; these models use timing chains.

Engine Oil Type:

API SG, SH, or SJ certified, SAE 5W-30 or 5W-40 recommended for most climates. 10W-30 can be used in warmer conditions.

Engine Oil Capacity 1.8L:

Approx. 4.8 US quarts (4.5 liters) with filter change.

Coolant Type:

Mazda long-life coolant (FL22) or equivalent Asian vehicle blue/green coolant (Ethylene Glycol based).

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Power Steering Fluid Type:

Mazda Genuine Power Steering Fluid or Dexron II/III ATF. Consult manual for exact spec.

Nb Common Issues Overview:

While generally reliable, some common issues include: oil consumption in higher mileage engines, worn clutch components, aging rubber bushings, power window regulators failing, and convertible top fabric degradation. Radiator and cooling system maintenance is important.

Nb Engine Oil Consumption:

Some NB engines, particularly with higher mileage, may exhibit increased oil consumption due to wear in piston rings or valve seals. Regular oil level checks are crucial.

Nb Rear Main Seal Leaks:

Rear main seal leaks can occur, requiring transmission removal to address.

Nb Convertible Top Leaks And Wear:

Older convertible tops can develop leaks, and the mechanism can require adjustment or lubrication. The rear plastic window can yellow or crack.

📚 Vehicle History

Mazda Sportscar Legacy:

Mazda has a long history of producing engaging and driver-focused sports cars, notably the Cosmo Sport and RX-7 series, culminating in the MX-5 Miata's spiritual successor role.

First Generation Na:

Introduced in 1989 (NA generation), revolutionizing the affordable sports car market with its lightweight, RWD layout, and simple, pure driving experience. Sold over 400,000 units.

Second Generation Nb:

Launched in 1998 for the 1999 model year. The NB generation featured a more modern design with pop-up headlights removed, improved aerodynamics, increased chassis rigidity, updated engines, and optional ABS and air conditioning. It maintained the core Miata philosophy. The years 1999-2002 represent the early NB models.

Production Location:

Mazda's Hofu Plant, Yamaguchi Prefecture, Japan.

Global Sales:

The MX-5 Miata holds the Guinness World Record for the best-selling two-seater sports car.

🏆 Awards & Recognition

Car And Driver 10Best:

The Mazda MX-5 Miata (including NB generation) was frequently named to Car and Driver's 10Best lists for its exceptional driving dynamics and value.

Automotive Journalism Accolades:

Consistently praised by automotive journalists worldwide for its handling, driver engagement, and reliability, solidifying its status as a modern classic.

Epa Fuel Economy Mpg City:

Approx. 20-24 MPG (Varies by engine and transmission, specific data requires model year lookup).

Epa Fuel Economy Mpg Highway:

Approx. 25-30 MPG (Varies by engine and transmission, specific data requires model year lookup).