The service and repair manual for the 2018 Audi A3 — 2.0L I4 and 1.4L I4 and 1.8L I4 engines, 13 trims. Matched to this exact model year, so the specifications and sequences are the ones Audi published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2018 |
|---|---|
| Engines | 2.0L I4 — 121 cu in, DOHC, turbocharged 1.4L I4 — 85 cu in, DOHC, turbocharged 1.8L I4 — 110 cu in, DOHC, turbocharged |
| Trims | Prestige Sedan 4-Door · Select Sedan 4-Door · Premium Sedan 4-Door · Premium Plus Convertible 2-Door · Progressiv Sedan 4-Door · Premium Plus Sedan 4-Door +7 |
| Other 2018 A3 variants | A3 Quattro → · A3 Sportback e-tron → |
| Federal record | 2 recalls · 46 complaints · 629 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2018 A3 manual
03 / ContentsSections in the manual
- Quick Lookups 117
- General Information 2,593
- Accessories & Equipment 4,093
- Heating, Ventilation & A/C (HVAC) 1,602
- Body & Frame 2,514
- Maintenance 293
- Brakes 444
- Restraints 444
- Drivelines & Axles 242
- Steering 174
- Differentials & Drive Axles 48
- Electrical 698
- Suspension 870
- Engine Mechanical 1,030
- Transmission 369
- Engine Performance 1,193
04 / Known issuesRecalls on federal record for the 2018 A3
- Air Bags — sensor › occupant classification › front passenger · 21V198000A deactivated passenger air bag increases the risk of injury during a crash.
- Fuel System, Gasoline · 24V110000A fuel leak in the presence of an ignition source increases the risk of a fire.
Owners have filed 46 complaints and Audi has issued 629 technical service bulletins for the 2018 A3. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2018 A3 manual
Is this manual specific to the 2018 A3?
Yes. It is the OEM manual matched to the 2018 model year, covering the 2.0L I4 and 1.4L I4 and 1.8L I4 across the Prestige Sedan 4-Door, Select Sedan 4-Door, Premium Sedan 4-Door, Premium Plus Convertible 2-Door, Progressiv Sedan 4-Door, Premium Plus Sedan 4-Door, Attraction Convertible 2-Door, Dynamic Sedan 4-Door, Komfort Sedan 4-Door, S Line Sedan 4-Door, Prestige Convertible 2-Door, S Line Convertible 2-Door, Premium Convertible 2-Door trims. Specifications and procedure sequences are the ones Audi published for this year.
What 2018 A3 problems does it help with?
2 recalls are on federal record for the 2018 A3, covering air bags, fuel system, gasoline. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Audi dealers.
Does it include 2018 A3 wiring diagrams?
Yes — the complete wiring diagrams for the 2018 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $40.99 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 A3 years and 2018 Audi models
2024 A3 · 2023 A3 · 2022 A3 · 2020 A3 · 2019 A3 · 2017 A3 · 2016 A3 · 2015 A3 · 2014 A3 · 2013 A3 · 2012 A3 · all 26 years
2018 Audi A1 · 2018 Audi A3 Quattro · 2018 Audi A3 Sportback e-tron · 2018 Audi A4 · 2018 Audi A4 Quattro · 2018 Audi A4 allroad · 2018 Audi A5 · 2018 Audi A5 Quattro · 2018 Audi A5 Sportback · 2018 Audi A6 · 2018 Audi A6 Quattro · 2018 Audi A7 · every 2018 model