This service and repair manual is written for the 2026 Audi RS6 Avant, the Audi Sport wagon built on the A6 platform. It is organized for real workshop use: symptom-led fault trees first, then wiring diagrams, connector views, measured value tables, torque figures and step-by-step removal and installation. Alongside the standard A6 Avant content it covers the RS-specific hardware, including the V8 driveline and its cooling package, the automatic transmission with quattro center differential and sport rear differential, RS adaptive air suspension and ride height calibration, the high-performance brake system with its carbon ceramic option, the sport exhaust with its valve control, and the RS-specific displays, drive select modes and MMI programming.
Engine
- 4.0L V8 (DYGA) 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 service 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 trusting a specification-critical value.
Trims
- Performance Wagon 4-Door
Only the Performance grade is catalogued for this baseline year, so the real variation on any given car comes from options rather than trim level: carbon ceramic brakes, the dynamic package and its top speed limiter, the RS design and carbon packages, and the assistance bundles all change which components, sensors and control modules are physically present. Confirm what your car carries before following an option-dependent chapter.
Known issues on the 2026 RS6 Avant. No recalls are on federal record for this model year, and no complaints are logged with NHTSA against it. On a low-volume performance wagon this recent that is an empty field record rather than evidence of a fault-free car, so lean on the manual's guided diagnosis rather than assuming earlier RS6 patterns apply. Given the thermal and electrical load this driveline carries, verify mild hybrid system health, the belt alternator starter and the condition of the separate cooling circuits before condemning driveline or chassis parts, because supply voltage and coolant temperature faults show up as symptoms in systems that look unrelated.
Written for the 2026 model year specifically, this manual gives an independent performance shop or an experienced owner the same structured reference an Audi Sport-trained dealer technician follows, from service intervals and fluid capacities through coding, adaptation, component overhaul and network-level fault diagnosis.
