The service and repair manual for the 2018 Mazda 3 — 2.5L I4 and 2.0L I4 engines, 18 trims. Matched to this exact model year, so the specifications and sequences are the ones Mazda published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2018 |
|---|---|
| Engines | 2.5L I4 — 152 cu in, DOHC 2.0L I4 — 122 cu in, DOHC |
| Trims | Touring Hatchback 4-Door · I Touring Sedan 4-Door · GS Sedan 4-Door · GT Sedan 4-Door · SE Sedan 4-Door · Touring Sedan 4-Door +12 |
| Other 2018 3 variants | 3 Sport → |
| Federal record | 4 recalls · 106 complaints · 239 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2018 3 manual
03 / ContentsSections in the manual
- Quick Lookups 120
- General Information 1,838
- Accessories & Equipment 3,081
- Heating, Ventilation & A/C (HVAC) 380
- Body & Frame 804
- Maintenance 24
- Brakes 545
- Restraints 343
- Drivelines & Axles 78
- Steering 119
- Electrical 511
- Suspension 120
- Engine Mechanical 619
- Transmission 217
- Engine Performance 1,967
- Loosen 180
04 / Known issuesRecalls on federal record for the 2018 3
- Visibility — windshield wiper/washer · 19V272000Reduced visibility while driving can increase the risk of crash.
- Engine And Engine Cooling — exhaust system · 17V745000An engine stall can increase the risk of a crash.
- Fuel System, Gasoline — delivery › fuel pump · 21V875000Fuel pump failure may cause an engine stall, increasing the risk of a crash.
- Back Over Prevention — sensing system › camera · 23V487000A rearview camera that does not display properly can reduce the driver's rear view, increasing the risk of a crash or injury.
Owners have filed 106 complaints and Mazda has issued 239 technical service bulletins for the 2018 3. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2018 3 manual
Is this manual specific to the 2018 3?
Yes. It is the OEM manual matched to the 2018 model year, covering the 2.5L I4 and 2.0L I4 across the Touring Hatchback 4-Door, I Touring Sedan 4-Door, GS Sedan 4-Door, GT Sedan 4-Door, SE Sedan 4-Door, Touring Sedan 4-Door, S Sedan 4-Door, Grand Touring Hatchback 4-Door, Grand Touring Sedan 4-Door, I Touring Hatchback 4-Door, G Sedan 4-Door, i Sedan 4-Door, Sport Sedan 4-Door, S Hatchback 4-Door, s Grand Touring Sedan 4-Door, Sport Hatchback 4-Door, s Grand Touring Hatchback 4-Door, GX Sedan 4-Door trims. Specifications and procedure sequences are the ones Mazda published for this year.
What 2018 3 problems does it help with?
4 recalls are on federal record for the 2018 3, covering visibility, engine and engine cooling, fuel system, gasoline. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Mazda dealers.
Does it include 2018 3 wiring diagrams?
Yes — the complete wiring diagrams for the 2018 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $49.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther 3 years and 2018 Mazda models
2024 3 · 2023 3 · 2022 3 · 2021 3 · 2020 3 · 2019 3 · 2017 3 · 2016 3 · 2015 3 · 2014 3 · 2013 3 · 2012 3 · all 21 years
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