Audi A6 C8 (2019–2026)

Audi A6 (C8, 2019-2026)

Overall Sentiment

Owners praise the C8 A6 for its sharp exterior design, especially the Avant wagon, and its luxurious, tech-forward interior. However, there is strong criticism of the fake exhaust outlets, the reliance on dual touchscreens for climate and audio controls, and the interior’s tendency to show fingerprints. Early reactions were mixed on the styling, with some preferring the softer lines of the C7, while later owners appreciate the modern look and advanced technology. A notable water retention issue with the hatch has been reported across multiple model years, causing frustration.

Sentiment Confidence Level

High

Frequently Mentioned Competitors

BMW 5-Series, Mercedes-Benz E-Class, Mercedes-Benz E-Class Estate, BMW 5-Series Touring

Positioning vs Competitors

Owners consider the C8 A6 a strong competitor to the BMW 5-Series and Mercedes-Benz E-Class, with one owner noting the general consensus that the new 5-Series is “a tad better” than the E-Class, and that the A6 “looks like it’ll do just fine” in comparison. The A6 Avant is described as “a lot better looking” than the BMW 5-Series Touring, but the Mercedes E-Class Estate is seen as “equally as good,” making it a tough choice. Some owners prefer the E-Class interior for its use of metal, wood, and leather over the A6’s tech-focused cabin.

Best Version According to Owners

Insufficient owner data available to declare a consensus. Owners mention the 40 TDI, 45 TDI, and RS6 variants, but no single version is universally recommended. One owner advises that if going for an Audi, it should be Quattro and preferably not “Quattro ultra.”

Recommended Configurations

Owners recommend avoiding 20-inch wheels if comfort is a priority, suggesting 18-inch wheels are best and 19-inch a balanced choice for summer, especially without air suspension. For the 40 TDI, one owner notes the 2.0-liter uses a 12V mild hybrid system (not 48V), which may have fewer BSG issues. Another owner recommends at least the 45 TDI Quattro for diesel buyers, as they found the 2.0-liter (non-PHEV) unenjoyable to drive.

General Recommendations

The C8 A6 is recommended for buyers seeking a luxurious, tech-laden, and comfortable daily driver, particularly the Avant wagon for its practicality and looks. Owners suggest avoiding early model years (2019-2020) due to potential electrical and electronic issues, with one owner reporting a lemon-like experience. The 2021 model year may have improved BSG reliability, but the hatch drain issue persists across years. Potential buyers should inspect the hatch seal and drains for water retention, and verify if any recalls for the 48V mild hybrid system have been performed on V6/V8 models.

Reported Issues

Fake exhaust outlets — Description: Owners strongly dislike the fake chrome exhaust tips, calling it a “hack job” and a “horrible styling trend.” — Frequency: very frequent

Hatch water retention — Description: Water pours out from the top edge of the hatch when opened after rain or a car wash. Some dealers attribute it to a failed spoiler seal (not covered by warranty), while others claim it is normal by design. — Frequency: very frequent

Dual touchscreen controls — Description: Owners dislike the lack of physical buttons for HVAC, volume, and tuning, citing fingerprints and distraction. — Frequency: recurrent

ABS module failure — Description: One owner reported the ABS module failed two months outside the 3-year warranty, costing £3000 to replace (Audi paid half). — Frequency: isolated

Interior rattles — Description: One owner described the car as “riddled with rattles.” — Frequency: isolated

Heavy steering after alignment — Description: One owner reported heavier steering after a wheel alignment, with resistance when turning slightly, possibly due to incorrect alignment specs. — Frequency: isolated

Control arm bearing wear — Description: One owner reported needing new control arm elastomeric bearings at 50,000 miles (under warranty) and again at 65,000 miles (out of warranty, $1500 cost). — Frequency: isolated

Oil consumption — Description: One owner reported their 40 TDI consumes roughly 1 liter of oil per 10,000 km. — Frequency: isolated

Remarks

Owners frequently cross-shop the A6 with the BMW 5-Series and Mercedes E-Class, and the Avant is particularly praised for its design. The hatch water retention issue is the most commonly reported problem across multiple model years (2021-2026), with inconsistent dealer responses. The fake exhaust tips are a near-universal point of criticism. Analysis based on approximately 18 substantive owner discussions about this generation.