2018 Audi S4 Service & Repair Manual

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The service and repair manual for the 2018 Audi S4 — 3.0L V6 and 3.0L V6 engines, 5 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 year2018
Engines
3.0L V6 — 183 cu in, DOHC, turbocharged
3.0L V6 — 183 cu in, DOHC, supercharged
TrimsPrestige Sedan 4-Door · Base Sedan 4-Door · Progressiv Sedan 4-Door · Premium Plus Sedan 4-Door · Technik Sedan 4-Door
Federal record2 recalls · 9 complaints · 647 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2018 S4 manual

2018 Audi S4 service manual page 12018 Audi S4 service manual page 22018 Audi S4 service manual page 32018 Audi S4 service manual page 42018 Audi S4 service manual page 52018 Audi S4 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 331
  • General Information 2,534
  • Accessories & Equipment 4,367
  • Heating, Ventilation & A/C (HVAC) 2,740
  • Body & Frame 3,731
  • Maintenance 1,068
  • Brakes 1,482
  • Restraints 451
  • Drivelines & Axles 274
  • Steering 371
  • Electrical 1,236
  • Suspension 785
  • Engine Mechanical 2,138
  • Transmission 456
  • Engine Performance 753
  • Front 200
  • Rear 200

04 / Known issuesRecalls on federal record for the 2018 S4

  1. Air Bags — frontal › passenger side › inflator module · 19V547000
    A disabled passenger air bag increases the risk of injury in the event of a crash.
  2. Seats · 21V874000
    A disabled passenger air bag increases the risk of injury in the event of a crash.

Owners have filed 9 complaints and Audi has issued 647 technical service bulletins for the 2018 S4. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2018 S4 manual

Is this manual specific to the 2018 S4?

Yes. It is the OEM manual matched to the 2018 model year, covering the 3.0L V6 and 3.0L V6 across the Prestige Sedan 4-Door, Base Sedan 4-Door, Progressiv Sedan 4-Door, Premium Plus Sedan 4-Door, Technik Sedan 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.

What 2018 S4 problems does it help with?

2 recalls are on federal record for the 2018 S4, covering air bags, seats. 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 S4 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.

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