Photo: Alexander Migl / CC BY-SA 4.0 / Wikimedia Commons
Sedan · Gas · 174 versions · owner report
Ranked #5 of 10 luxury midsize cars on owner data, price and fuel economy
Power
0–62 mph (0–100 km/h)
Top speed (250 km/h)
Combined, EPA 2027
Our take, from owner reports
Sentiment is sharply divided by generation and powertrain.
8 problems reported (2 very frequent, 5 recurrent, 1 isolated) · high confidence
Parking system failure, LED headlight malfunctions with high-frequency whine)
The Prestige trim is favored for its comprehensive technology and comfort features, including the head-up display, massaging seats, and superior sound insulation. The air suspension on the Allroad is singled out as a transformative feature for ride comfort.
Owners compare it most often with the BMW 5 Series, Mercedes-Benz E-Class, Lexus ES, Genesis G80 and Audi A4/A5.
Is the A6 right for you?
Get an answer for your year, mileage and budget.
Sentiment is sharply divided by generation and powertrain. For the C7 (approx. 2012-2018) and C8 (approx. 2019-2023) generations, owner feedback is generally positive, praising the cars for their refined driving experience, comfortable and quiet ride, spacious interiors, and strong performance from the 3.0-liter engines (both TFSI and TDI). The A6 Allroad variant, in particular, receives high marks for its air suspension comfort, practicality, and impressive highway fuel economy. However, a consistent and very frequent criticism across all discussions is the high cost of maintenance and repairs compared to non-German competitors. Concerns about long-term reliability and expensive out-of-warranty fixes are pervasive. For the new 2026 model year, sentiment is overwhelmingly negative based on an isolated but severe report of catastrophic electronic failures, leading to the characterization of the vehicle as an unreliable "premium priced beta" or "dumpster fire."
Positioned as a more understated, comfortable, and technology-focused alternative to the BMW 5 Series, with the A6 interior frequently described as nicer and more refined. Compared to the Mercedes E-Class, it is sometimes seen as offering better value but potentially inferior resale value and interior prestige. The A6 Allroad occupies a unique niche as a comfortable, capable wagon, often cross-shopped with SUVs like the Audi Q5 for its practicality and superior driving dynamics. It is consistently acknowledged that Asian competitors (Lexus, Genesis) offer superior long-term reliability and lower running costs, while German rivals may offer more engaging driving dynamics or brand cachet.
For the C8 generation, the 3.0T engine is strongly recommended over the 2.0T for performance and perceived robustness. Allroad models with air suspension are recommended for supreme comfort. For infotainment reliability, using a wired connection for CarPlay is suggested over wireless due to recurrent connectivity issues. A thorough pre-purchase inspection and verification of a complete service history are considered essential for used models. For new models, avoiding the first model year of a new generation (e.g., 2026) is a recurrent suggestion based on severe isolated reports.
Suitable for buyers who prioritize a refined, comfortable, and powerful highway cruiser with a premium interior. Ideal for those who can perform some maintenance themselves or have access to a trusted independent mechanic to mitigate high dealer service costs. Strongly recommended to purchase with a certified pre-owned (CPO) warranty or factor in the cost of an extended warranty for peace of mind. Not recommended for budget-conscious buyers unprepared for maintenance costs that are significantly higher than mainstream brands (e.g., $1,200 for a routine 10k-mile service). Potential buyers of used high-mileage examples (over 100k miles) must prioritize vehicles with meticulous, documented service histories.
Owner discussions heavily emphasize that the ownership cost and experience are directly tied to maintenance diligence. The 3.0T TFSI and TDI engines are generally viewed as reliable powerplants when properly maintained, with some owners reporting trouble-free operation beyond 200,000 km. The severe negative experience with the 2026 model represents an isolated data point but has significantly impacted community perception of Audi's new generation quality control. The A6, particularly the sedan, is noted for experiencing high depreciation, which makes used examples appealing but also reflects concerns about long-term cost of ownership. Analysis based on approximately 60 substantive owner discussions spanning model years from approximately 2011 to 2026.
Owner insights per generation and US complaint/recall records (NHTSA).
Most-reported areas (NHTSA): electrical system (7) · forward collision avoidance (7) · fuel/propulsion system (3)
Our take, from owner reports
Owner sentiment is sharply divided.
17 problems reported (4 very frequent, 8 recurrent, 5 isolated) · high confidence
Blind spot, etc.) with multiple warning messages.
Is a 2025–2026 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): electrical system (160) · engine (40) · forward collision avoidance (36)
Our take, from owner reports
Owners praise the C8 A6 for its sharp exterior design, especially the Avant wagon, and its luxurious, tech-forward interior.
8 problems reported (2 very frequent, 1 recurrent, 5 isolated) · high confidence
Description: Owners strongly dislike the fake chrome exhaust tips, calling it a “hack job” and a “horrible styling trend.”.
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.
Description: Owners dislike the lack of physical buttons for HVAC, volume, and tuning, citing fingerprints and distraction.
Description: One owner described the car as “riddled with rattles.”.
Description: One owner reported heavier steering after a wheel alignment, with resistance when turning slightly, possibly due to incorrect alignment specs.
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).
Description: One owner reported their 40 TDI consumes roughly 1 liter of oil per 10,000 km.
Is a 2019–2026 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): electrical system (156) · engine (40) · forward collision avoidance (33)
Our take, from owner reports
Owners generally view the C8 A6 as a comfortable, capable luxury sedan with strong acceleration and a high-quality interior.
16 problems reported (2 very frequent, 7 recurrent, 7 isolated) · high confidence
Is a 2019–2025 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): engine (60) · air bags (58) · electrical system (34)
Our take, from owner reports
Owners of the 2012-2018 A6 are generally positive, praising the 3.0T supercharged engine as one of Audi's most reliable and the ZF 8-speed transmission as stout and well-programmed.
12 problems reported · high confidence
Recurrent: The screen mechanism can break, and the screen may not retract or extend properly.
Very frequent: A common failure on the 3.0T, often addressed as preventive maintenance.
Recurrent: Known to fail on the 3.0T, especially on earlier CGXB engines.
Recurrent: Engine mounts can leak and fail, causing vibration at idle.
Recurrent: Control arms and suspension components are common wear items at higher mileage.
Recurrent: A notable annoyance; requires adapters or aftermarket solutions like Tune2Air.
Recurrent: Sensors, tank, and pump are a single unit; failure can be very expensive and parts may have long wait times.
Recurrent: Common on Euro5 and later diesels, especially with short trips.
Recurrent: Rear struts can leak at the top seal around 200,000-220,000 km; compressor may fail if driven with a leaking strut.
Isolated: Mentioned as a maintenance item, but not a widespread failure.
Isolated: Mentioned as a potential issue on high-mileage 3.0T engines.
Isolated: Mentioned as a possible issue.
Is a 2012–2018 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): engine (60) · air bags (58) · electrical system (34)
Our take, from owner reports
Owners of the 2012-2018 A6 (C7 generation) broadly regard it as one of the best used luxury sedan values available, with the supercharged 3.0T engine repeatedly described as bulletproof and the 8-speed ZF transmission as stout.
17 problems reported (1 very frequent, 8 recurrent, 8 isolated) · high confidence
Is a 2012–2018 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): air bags (82) · engine (60) · electrical system (38)
Our take, from owner reports
Owners of the 2011-2018 A6 (C7 generation) are generally positive about the driving experience, comfort, and styling, calling it "the best car I've ever owned" and noting it is "fast, super comfortable, and looked good." However, sentiment is sharply divided by mileage and maintenance history.
10 problems reported (10 recurrent) · high confidence
Requires specialized cleaning (pressure washing via freeze plugs or engine removal), not a simple DIY job.
Often replaced preventatively; can leak vacuum and trigger check engine light.
Often replaced alongside water pump.
Located under the supercharger; replacement is a moderate DIY job.
Described as the "biggest headache"; replacement is expensive and typically farmed out.
Common on post-Euro5 diesels; can sometimes be cleared by a sustained high-rev drive.
Generally lasts 80,000–150,000 km; one owner reports a rear spring leak at 160,000 km.
Sensitive to oil/filter condition; described as less reliable than other transmissions and expensive to repair.
Generic OBD2 scanners may not catch all errors; VCDS or similar is needed.
Is a 2011–2018 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): air bags (283) · electrical system (49) · exterior lighting (21)
Our take, from owner reports
Owners of the 2006-2011 A6 express a deeply divided sentiment.
12 problems reported (1 very frequent, 6 recurrent, 5 isolated) · high confidence
A common recurring expense.
Can require a full engine replacement costing $8,000+.
Can cause major oil leaks and rear timing cover damage if not addressed.
Common on direct-injection engines.
Expensive to repair.
Specific to this engine and year.
Is a 2006–2011 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): air bags (283) · electrical system (49) · exterior lighting (21)
Our take, from owner reports
Owners of the 2006-2011 A6 describe it as a car that is enjoyable and rewarding when properly maintained, but one that demands a substantial financial cushion and a willingness to stay ahead of repairs.
17 problems reported (3 very frequent, 8 recurrent, 6 isolated) · high confidence
Particularly on early 3.0T engines and requiring engine-out repair.
Is a 2006–2011 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): electrical system (101) · fuel system (73) · service brakes (65)
Our take, from owner reports
Owners are sharply divided on this generation.
10 problems reported (2 very frequent, 4 recurrent, 4 isolated) · high confidence
Turbos often fail past 100,000 miles, with replacement costs of $5,000–$10,000.
Failure can destroy the engine.
Often requires rebuild or replacement.
Clutch packs fry past 400 hp; the 2.7T's torque is hard on the box.
Check for engine and transmission leaks.
Expensive ($1,000 each side), causes misfires.
Requires dashboard removal to replace.
Mentioned as a potential future issue.
Listen for noise when turning.
Is a 2000–2005 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): electrical system (101) · fuel system (73) · service brakes (65)
Our take, from owner reports
Owners of the 2000-2005 A6 describe a car that is genuinely enjoyable to drive and own when it has been well maintained, but one that demands constant attention and money as it ages.
18 problems reported (2 very frequent, 8 recurrent, 8 isolated) · high confidence
Window cables, ABS modules, seat controls, mirror motors and wiper pump motors failing one after another.
Including cold-start rattle and the high cost of replacement with the engine out.
Is a 2000–2005 A6 right for you?
Get an answer for your year, mileage and budget.
Most-reported areas (NHTSA): fuel system (152) · electrical system (137) · service brakes (117)
Our take, from owner reports
Owners are sharply divided on this generation.
12 problems reported (3 very frequent, 6 recurrent, 3 isolated) · high confidence
Is a 1997–2004 A6 right for you?
Get an answer for your year, mileage and budget.
Each year graded against the model's other years: Year Score. See all Audi A6 years to avoid
| Year | Complaints | Recalls | Most-reported area |
|---|---|---|---|
| 2026 | 8 | 0 | electrical system |
| 2025 | 9 | 2 | forward collision avoidance |
| 2024 | 3 | 1 | service brakes |
| 2023 | 2 | 1 | electrical system |
| 2021 | 45 | 12 | electrical system |
| 2020 | 58 | 9 | electrical system |
| 2019 | 114 | 7 | electrical system |
| 2018 | 2 | 2 | electrical system |
| 2017 | 20 | 3 | air bags |
| 2016 | 51 | 3 | engine |
| 2015 | 22 | 4 | engine |
| 2014 | 41 | 4 | steering |
| 2013 | 52 | 6 | air bags |
| 2012 | 59 | 8 | air bags |
Complaint counts come from owner reports filed with the US National Highway Traffic Safety Administration. Higher-selling years naturally accumulate more complaints.
2025 · seat belts:rear/other:retractorcampaign 25V899000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2025 SQ6 E-Tron, SQ6 Sportback E-Tron, Q6 Sportback E-Tron, A6, A5, A6 Sportback E-Tron, Q6 E-Tron, S5, and S6 Sportback E-Tron vehicles. The automatic locking retractor may fail to engage when a child seat is installed using the seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 208, "Occupant Crash Protection" and 209, "Seat Belt Assemblies."
2025 · back over prevention: sensing system: cameracampaign 25V900000
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 fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
2024 · back over prevention: sensing system: cameracampaign 25V900000
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 fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
2023 · back over prevention: sensing system: cameracampaign 25V900000
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 fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
2021 · seat belts:rear/other:retractorcampaign 21V606000
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
2021 · tirescampaign 22V034000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
2021 · air bagscampaign 21V159000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi RS6 Avant, RS7, 2020-2021 A6 Allroad, S6 Sedan, S7, 2019-2021 A6 Sedan, and A7 vehicles. The score line on the passenger air bag may not have been manufactured correctly.
2021 · electrical systemcampaign 20V749000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi A6 Allroad, Q7, RS6 and RS7 vehicles. The electrical connector can detach from the door crash sensor in either of the front doors.
2021 · suspension:rear:axle:non-powered axle assemblycampaign 21V295000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.
2021 · electrical system:instrument panel:fuel gauge:fuel level float/sensor/sending unitcampaign 22V155000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 RS6 Avant and RS7, 2020-2022 A6 Allroad, S6 Sedan, and S7, and 2019-2022 A6 Sedan and A7 vehicles. The fuel level sender may stick, causing an inaccurate fuel level reading to be displayed on the instrument cluster.
2021 · back over prevention:display functioncampaign 22V742000
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
2021 · electrical systemcampaign 22V861000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2020-2022 Audi S7, S6 Sedan, A6 Allroad, 2021-2022 RS7, RS6 Avant, 2019-2022 A7, and A6 Sedan vehicles. Liquid spilled in the rear seat may penetrate and cause the gateway control module to shut down.
2021 · service brakes, hydraulic:fluidcampaign 23V601000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi S7, S6 Sedan, RS7, RS6 Avant, A6 Allroad, 2019-2021 A7, and A6 Sedan vehicles. An incorrectly labeled brake fluid cap may have been installed, which can result in the use of the wrong type of brake fluid.
2021 · electrical system: instrument cluster/panelcampaign 25V201000
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 SQ8, A6 SEDAN, A7, A8, Q7, Q8, RS6 Avant, RS7, RSQ8, S6 SEDAN, S7, S8, A6 Allroad, and SQ7 vehicles. Due to a software error, the instrument panel display may fail.
2021 · back over prevention: sensing system: cameracampaign 25V900000
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 fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
121 older recalls not shown. Check nhtsa.gov with your VIN for the full history.
Enthusiast code: C9
3.0 TFSI V6 Mild Hybrid plus quattro ultra
3.0L 6-cylinder · 367 hp · AWD · automatic
Built 2025–2026