2020 Mazda MX-5 Miata Service and Repair Manual

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Covers all 2020 MX-5 Miata trims — Sport Convertible 2-Door, GT Convertible 2-Door, 100th Anniversary Special Edition Convertible 2-Door +5 more ·
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2020 Mazda MX-5 Miata service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • Sport Convertible 2-Door
  • GT Convertible 2-Door
  • 100th Anniversary Special Edition Convertible 2-Door
  • RF Club Convertible 2-Door
  • GS-P Convertible 2-Door
  • RF GT Convertible 2-Door
  • RF 100th Anniversary Special Edition Convertible 2-Door
  • GS Convertible 2-Door
  • RF GS-P Convertible 2-Door
  • RF Grand Touring Convertible 2-Door
  • Grand Touring Convertible 2-Door
  • Club Convertible 2-Door

Engines covered

  • 2.0L 1998CC 122Cu. In. l4 GAS DOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #24V69500018/09/2024Component: AIR BAGS: AIR BAG/RESTRAINT CONTROL MODULE:SOFTWARE

Mazda North American Operations (Mazda) is recalling certain 2016-2023 MX-5 Miata vehicles. A software error in the air bag control module may cause the front air bags to deploy with excessive force

Consequence

An air bag that deploys with excessive force can increase the risk of injury during a crash.

Remedy

Dealers will update the Sophisticated Air Bag Sensor (SAS) control module software, free of charge.

No service bulletins No technical service bulletins on file with NHTSA for the 2020 Mazda MX-5 Miata.
20260512Component: AIR BAGS

Mazda and NHTSA have sent out multiple notices calling owner to go to dealers to have the recall remediated. If one schedules to go to a dealership they are informed that Mazda does not yet have a too

20240523Component: FUEL/PROPULSION SYSTEM

2020 mx5 rf club edition with 65k miles lost engine power while driving in rush hour traffic. Car would not re-start, required a tow, and I was left stranded and without transportation. Since car was

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