This manual is built specifically for the 2023 Audi S8 Base Sedan 4-Door, so the diagnostic steps, wiring routes, and torque values inside match what Audi actually specified for this trim rather than a generic full-size sedan writeup. It covers the 4.0L V8 (DWKA) turbocharged mild hybrid EV-Gas (MHEV) engine under this S8's hood.
Engines covered
- 4.0L V8 mild hybrid (244 cu in) — DOHC, turbocharged, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Base
Known issues on the 2023 S8. Two recalls are on federal record for this model year. The first covers the front passenger air bag: the occupant protection flap may not have been folded correctly during assembly, and in a crash an incorrectly folded bag can deploy with too much force, raising injury risk for an unbelted occupant seated close to the instrument panel. The second covers the rearview camera, where a software error can prevent the image from displaying, reducing the driver's view behind the vehicle and increasing crash risk. No complaints or technical service bulletins are logged for the year. The factory diagnostic and repair procedures behind both systems are here.
Whether you're inspecting the front air bag module or diagnosing a rearview camera fault, it keeps you on the OEM procedure and the correct specification for your 2023 S8.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2022-2023 S8 and A8 vehicles. During air bag assembly, the front-passenger occupant protection flap of the air bag may not have been folded correctly. As such, these vehicles fail to com
In a crash, an incorrectly folded air bag can deploy with too much force, increasing the risk of injury to a child or small person who is seated and unbelted on the front passenger seat and very close
Dealers will replace the front-passenger air bag module, free of charge. Owner notification letters are expected to be mailed April 14, 2023. Owners may contact Audi's customer service at 1-800-253-
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles
A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is
This bulletin provides a statement regarding the bottleneck of supply for VW approved oil types VW 504.00 and VW 507.00.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
This bulletin provides information when there is a seat operation display error (rear remote control).
This bulletin provides informaiotn regarding squeaking noises when steering or maneuvering.
Showing the 8 most recent of 838 technical service bulletins on file with NHTSA.
