The service and repair manual for the 2018 Subaru WRX — the 2.0L H4 engine, 7 trims. Matched to this exact model year, so the specifications and sequences are the ones Subaru published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2018 |
|---|---|
| Engines | 2.0L H4 — 122 cu in, DOHC, turbocharged |
| Trims | Premium Sedan 4-Door · Base Sedan 4-Door · Sport Sedan 4-Door · Sport-tech Sedan 4-Door · 6 Man Sedan 4-Door · Limited Sedan 4-Door +1 |
| Other 2018 WRX variants | WRX STI → |
| Federal record | 2 recalls · 61 complaints · 253 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2018 WRX manual
03 / ContentsSections in the manual
- Quick Lookups 285
- General Information 1,643
- Accessories & Equipment 2,602
- Heating, Ventilation & A/C (HVAC) 179
- Body & Frame 637
- Maintenance 14
- Brakes 567
- Restraints 338
- Drivelines & Axles 349
- Steering 316
- Electrical 882
- Suspension 255
- Engine Mechanical 719
- Transmission 392
- Engine Performance 2,363
- Axle Shaft Nut (Front) 162
- Axle Shaft Nut (Rear) 140
04 / Known issuesRecalls on federal record for the 2018 WRX
- Fuel System, Gasoline — delivery › fuel pump · 21V587000Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
- Exterior Lighting — back up lights › switch · 22V522000Inoperative backup lights and an inoperative rearview camera can reduce vehicle visibility and drive.
Owners have filed 61 complaints and Subaru has issued 253 technical service bulletins for the 2018 WRX. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2018 WRX manual
Is this manual specific to the 2018 WRX?
Yes. It is the OEM manual matched to the 2018 model year, covering the 2.0L H4 across the Premium Sedan 4-Door, Base Sedan 4-Door, Sport Sedan 4-Door, Sport-tech Sedan 4-Door, 6 Man Sedan 4-Door, Limited Sedan 4-Door, CVT Sedan 4-Door trims. Specifications and procedure sequences are the ones Subaru published for this year.
What 2018 WRX problems does it help with?
2 recalls are on federal record for the 2018 WRX, covering fuel system, gasoline, exterior lighting. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Subaru dealers.
Does it include 2018 WRX 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 WRX years and 2018 Subaru models
2024 WRX · 2023 WRX · 2022 WRX · 2021 WRX · 2020 WRX · 2019 WRX · 2017 WRX · 2016 WRX · 2015 WRX · 2014 WRX · 2013 WRX · 2012 WRX · all 13 years
2018 Subaru BRZ · 2018 Subaru Crosstrek · 2018 Subaru Forester · 2018 Subaru Impreza · 2018 Subaru Legacy · 2018 Subaru Outback · 2018 Subaru WRX STI · 2018 Subaru XV · every 2018 model