This factory service and repair manual covers the 2026 Audi S6 sedan, the performance version of Audi's executive four-door. It is organized the way the car is diagnosed rather than the way a brochure describes it: symptom to fault tree to circuit, with wiring diagrams, connector views, measured value tables, torque figures and complete removal and installation sequences. Coverage spans the V6 driveline and its mild hybrid belt alternator starter system, the automatic transmission and quattro center differential, adaptive damping and the optional air suspension with ride height calibration, the high-performance brake system, climate control, the MMI infotainment, and the camera, radar and ultrasonic sensors the assistance functions depend on.
Engine
- 2.9L V6 (DKMB) turbocharged mild hybrid EV-gas (MHEV)
The engine letter code is carried forward from the most recent confirmed model year, 2024, and is not verified for 2026. Audi's own erWin portal lists this chassis continuing into 2026, so treat the exact code and output as subject to confirmation against the vehicle data sticker before ordering parts or relying on a specification-critical figure.
Trims
- Base Sedan 4-Door
- Premium Sedan 4-Door
- Premium Plus Sedan 4-Door
- Prestige Sedan 4-Door
Those grades are carried over from the same baseline year and differ in equipment rather than mechanical specification. That equipment still matters for repair work, because it decides whether a given module, sensor or actuator exists on your car, so match the option-dependent chapters to your build before you start tracing a circuit.
Known issues on the 2026 S6. No recalls are on federal record for this model year, and no complaints are logged with NHTSA against it. For a low-volume performance sedan this recent that is an empty field record rather than proof of a fault-free car, so lean on the manual's guided diagnosis instead of assuming older S6 patterns transfer. On any mild hybrid Audi of this family, verify battery state of charge, the belt alternator starter and the DC-DC converter supply before condemning control modules, because a weak low-voltage supply produces fault entries across systems that look unrelated to each other.
Written for the 2026 model year specifically, this manual gives an independent workshop or a hands-on owner the same structured reference a franchised Audi technician works from, covering maintenance intervals, fluid and torque specifications, coding and adaptation, component overhaul and network-level fault diagnosis.
