Buying a used luxury sedan can be a smart way to enjoy premium comfort, advanced technology, and strong performance at a much lower price than buying new.
Audi has built a reputation for producing refined sedans with elegant interiors and confident all wheel drive systems. However, not every model offers the same ownership experience once the warranty has expired.
Some Audi sedans hold up well over time and deliver a rewarding blend of performance, comfort, and reasonable long term costs when properly maintained. Others, while impressive when new, can become expensive as they age due to complex engines, advanced electronics, or known reliability concerns.
The difference between a smart used buy and a financial burden can come down to the specific model, engine, and generation you choose.
In this guide, we look at both sides of the used Audi sedan market. First, we highlight six Audi sedans we would confidently consider buying used because they offer strong value and a solid ownership reputation.
After that, we cover six models we would approach with caution or avoid, mainly due to higher repair risk or long term expense. The goal is to help you choose wisely and enjoy Audi luxury without unexpected stress.
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Top 6 Audi Sedans We’d Buy Used
Audi has produced many excellent sedans that become especially appealing after depreciation lowers their price.
The key is identifying models that combine Audi’s signature interior quality and composed road manners with engines and components that have proven durable over time. A well chosen used Audi sedan can feel just as premium as a newer car while costing significantly less to purchase.
The sedans in this list stand out because they offer a strong balance between performance and reliability. They tend to use engines with solid track records, fewer widespread design flaws, and more manageable maintenance needs compared to some higher performance or more complex variants.
While upkeep is still more expensive than non luxury brands, these cars are less likely to surprise owners with constant major repairs.
We are focusing on models that still feel modern enough for daily use while avoiding some of the most problematic generations.
These sedans deliver the refined ride, quiet cabins, and confident handling that Audi is known for, without pushing ownership costs into extreme territory. If you want a used Audi sedan that offers real luxury value rather than endless workshop visits, these six are strong places to begin.
1. Audi A4 B8.5 2.0T Sedan
The B8.5 generation A4 with the 2.0 liter turbocharged engine is one of the most balanced used Audi sedans available. It combines a comfortable ride, a high quality interior, and solid all weather capability with an engine that is generally more reliable than earlier versions.
One of the main reasons we would buy this model used is its refined driving character. The suspension is tuned for comfort but still feels composed on winding roads. Quattro all wheel drive adds confidence in poor weather, making it a practical year round daily driver in many climates.
The updated version of the 2.0T engine found in this generation addressed several issues that affected earlier models. While regular maintenance is still important, many owners report dependable performance when service schedules are followed. Fuel economy is also reasonable for a luxury sedan with all wheel drive.
We are including the A4 B8.5 because it offers the core Audi experience without stepping into the most complicated or highest risk territory. It feels upscale inside, drives smoothly, and can be a sensible long term choice for someone wanting an entry level luxury sedan with a premium feel.
2. Audi A6 C7 3.0T Sedan
The C7 generation A6 with the supercharged 3.0 liter V6 engine is a strong option for buyers who want a larger and more powerful Audi sedan without moving into flagship price and complexity levels. It delivers smooth performance along with a comfortable and refined ride.
The 3.0T engine is known for providing strong and consistent power across the rev range. Because it uses a supercharger rather than turbochargers, throttle response feels immediate and smooth. When properly maintained, this engine has developed a relatively solid reputation compared to some other Audi powerplants.
Inside, the A6 offers a spacious and well finished cabin that still feels modern. It is quiet on the highway and well suited for long trips. The ride quality leans toward comfort, making it an appealing daily driver for people who want luxury without a harsh sport suspension.
We are highlighting the C7 A6 3.0T because it blends performance, comfort, and a comparatively dependable engine. It gives buyers a taste of higher end Audi luxury and power while avoiding some of the more extreme maintenance risks found in larger or more performance focused models.
3. Audi A3 8V 2.0T Sedan
The 8V generation A3 sedan with the 2.0 liter turbocharged engine is a smart used choice for buyers who want Audi style and technology in a smaller, more efficient package. It delivers a premium feel without the size, weight, and operating costs that come with larger luxury sedans.
One of the main reasons we would consider this model is its balance of performance and economy. The turbocharged four cylinder provides lively acceleration for daily driving while still offering respectable fuel efficiency. This makes it easier to live with as a commuter car compared to bigger and heavier Audi sedans.
The A3 also benefits from sharing many components with other well known models in the Volkswagen Group lineup. This can help with parts availability and service familiarity at independent repair shops. While it is still a luxury vehicle, maintenance and repairs are often more manageable than on higher end Audi models.
Inside, the cabin feels modern and well built, with clean design and intuitive controls. Even though it is smaller than an A4 or A6, it still provides a comfortable environment for most drivers and passengers. Road noise is well controlled, and the ride remains composed over uneven pavement.
We are including the A3 8V because it offers an accessible entry point into Audi ownership. It combines premium design, solid performance, and more reasonable long term costs, making it a practical and enjoyable used luxury sedan for many buyers.
4. Audi A5 Sportback B9
Although often associated with its sleek coupe like styling, the A5 Sportback B9 functions very well as a practical sedan alternative. It provides four doors, a spacious cabin, and strong everyday usability while retaining Audi’s modern design and refined driving experience.
A key reason we would buy this model used is its updated 2.0 liter turbocharged engine paired with a smooth shifting automatic transmission. The power delivery feels responsive without being excessive, and fuel economy is competitive for a luxury car with this level of performance.
The interior is another highlight. Audi is known for high quality materials and clean design, and the B9 generation continues that tradition. The infotainment system is more modern than in older models, and overall cabin comfort makes it a pleasant place to spend time during long drives or daily commutes.
Practicality is better than many people expect. The Sportback design offers a large rear cargo area thanks to its hatch style opening, which adds versatility without sacrificing style. For buyers who want something more distinctive than a traditional sedan, this layout is a big advantage.
We are highlighting the A5 Sportback B9 because it blends style, usability, and modern engineering. As a used buy, it offers a near luxury experience with strong everyday practicality and relatively manageable ownership compared to some higher prformance Audi models.
5. Audi A7 C7 3.0T Sedan
The C7 generation A7 with the supercharged 3.0 liter V6 engine offers a strong combination of style, comfort, and performance that makes it an appealing used luxury sedan. It shares much of its mechanical foundation with the A6 of the same era, which helps give it a more proven and balanced ownership profile than some more exotic Audi models.
One of the biggest reasons we would consider this car used is its refined driving character. The supercharged V6 delivers smooth and confident acceleration, making highway merging and passing feel effortless. Power delivery is consistent and predictable, which adds to the car’s relaxed yet capable personality.
The A7 also stands out for its interior quality. Materials feel upscale, and the cabin design still looks modern years after its release. It is quiet at speed, and the suspension is tuned to prioritize comfort while still maintaining the controlled road manners Audi is known for. This makes it well suited to long distance driving.
Practicality is another advantage. The Sportback style rear hatch offers a large cargo opening, making it more versatile than a traditional trunk. Owners get the sleek look of a coupe inspired sedan without sacrificing everyday usefulness.
We are including the A7 C7 3.0T because it delivers premium style and performance without stepping into the highest risk territory. When properly maintained, it can be a rewarding used luxury car that feels special without being as intimidating to own as some flagship or high performance variants.
6. Audi A8 D4 3.0T Sedan
The D4 generation A8 with the supercharged 3.0 liter V6 engine offers flagship comfort and technology with a powertrain that is generally more manageable than the larger V8 and W12 options. For buyers seeking full size luxury at a used price, this version stands out as one of the more sensible choices in the A8 lineup.
Ride comfort is one of the A8’s strongest points. The suspension is tuned to glide over rough roads, and the cabin remains exceptionally quiet even at highway speeds. Long trips feel effortless, and rear seat passengers benefit from generous space and a high level of refinement.
The 3.0T engine provides smooth and adequate power for a car of this size. While not as fast as the bigger engine options, it avoids some of the extra heat and complexity associated with higher output versions. This can make long term ownership somewhat less risky compared to V8 or W12 equipped A8 models.
Inside, the A8 showcases Audi’s high end craftsmanship. Materials, fit, and finish all reflect its flagship status. Even years later, the cabin still feels upscale and comfortable, which adds to the sense of value when buying used.
We are highlighting the A8 D4 3.0T because it allows buyers to experience top tier Audi luxury with a relatively more reasonable engine choice. It still requires proper maintenance, but it avoids some of the extreme costs that can come with more powerful variants.
6 Audi Sedans We Wouldn’t Buy Used
Not every Audi sedan becomes a smart purchase once the price drops on the used market. Some models that seem like incredible bargains at first glance can turn into expensive ownership experiences due to complex engineering, known mechanical issues, or high parts and labor costs.
While many Audi sedans drive beautifully and offer impressive technology, long term durability and repair risk are just as important as comfort and performance.
Luxury cars often include advanced engines, sophisticated transmissions, and layers of electronic systems. As these vehicles age, the cost of maintaining and repairing those systems can rise quickly.
For buyers who are not prepared for premium service bills, certain Audi sedans can become far more expensive than expected, even if the initial purchase price seems attractive.
The sedans in this section are not necessarily bad to drive. In fact, many are quick, comfortable, and packed with features. However, they are included here because they tend to have higher risk profiles in the used market.
Whether due to engine problems, transmission concerns, or complicated technology that does not age well, these models often demand deeper pockets and more patience than most used car shoppers anticipate.
1. Audi A4 B8 2.0T Sedan
The earlier B8 generation A4 with the 2.0 liter turbocharged engine can be a tempting used buy because of its stylish design and affordable pricing. However, this version is known for several engine related issues that can make ownership frustrating and expensive over time.
One of the most well known problems involves excessive oil consumption. Some versions of this engine developed a reputation for burning oil at a higher than normal rate, which can lead to frequent top ups and, in severe cases, internal engine damage if not addressed properly. Repairs can be costly and may involve significant engine work.
Timing chain tensioner issues are another concern. A failing tensioner can lead to serious engine damage if not repaired in time. Because this problem can develop without obvious warning, it creates uncertainty for used buyers, especially if service history is incomplete.
While the car itself is comfortable and refined, these engine risks overshadow its strengths. Even well maintained examples may require expensive preventative work to ensure long term reliability.
We are including the A4 B8 2.0T because it often appears to be a luxury bargain. Unfortunately, the potential for major engine related expenses makes it a risky choice compared to later versions that addressed many of these issues.
2. Audi A6 C6 4.2 V8 Sedan
The C6 generation A6 equipped with the 4.2 liter V8 offers strong performance and a refined driving experience, but it can be a difficult car to own as it ages. The combination of a large naturally aspirated V8 and a complex luxury platform can lead to high running and repair costs.
Fuel consumption is one immediate drawback. The V8 engine provides smooth power, but it also uses a significant amount of fuel, especially in city driving. For buyers expecting reasonable efficiency from a midsize sedan, this can become a constant expense.
Mechanical complexity is another concern. The V8 is tightly packaged in the engine bay, which makes many repairs labor intensive. Common maintenance tasks can take more time and cost more money than on smaller engine models. Cooling system components and other wear items can also be expensive to replace.
Electronics and luxury features add another layer of risk. As the car ages, issues with infotainment, sensors, and comfort systems can appear, and fixing them is rarely cheap.
We are highlighting the A6 C6 4.2 because it blends strong performance with high long term costs. For most used buyers, the added fuel and maintenance burden make it less appealing than six cylinder alternatives.
3. Audi A8 D3 4.2 Sedan
The D3 generation A8 with the 4.2 liter V8 engine can look like an incredible bargain on the used market. It was a flagship luxury sedan when new, filled with advanced technology and premium materials. However, as these cars age, the cost and complexity of keeping them on the road can outweigh the low purchase price.
One of the biggest concerns is the engine layout and service difficulty. The V8 is tightly packaged, and many repairs require significant labor. Routine maintenance such as timing related service or cooling system work can become far more expensive than buyers expect. As mileage climbs, oil leaks and other age related issues are common.
The A8 also features an air suspension system designed for a smooth and comfortable ride. While it works beautifully when everything is functioning correctly, air suspension components can fail over time. Replacing air struts or related parts can be very costly, and ignoring problems can lead to poor ride quality or further damage.
Electronics are another weak point in older flagship sedans. The A8 D3 introduced many high tech features for its time, but aging control modules, sensors, and wiring can lead to persistent warning lights and complicated diagnostics. Fixing these issues can require specialized equipment and expertise.
We are including the A8 D3 4.2 because it combines a complex engine, advanced suspension, and aging electronics in one package. While it delivers impressive comfort and prestige, the long term ownership risk is high for most used car buyers.
4. Audi S6 C6 V10 Sedan
The C6 generation S6 is an exciting performance sedan powered by a naturally aspirated V10 engine. It offers thrilling acceleration and a unique engine sound, but those same qualities also make it one of the riskiest Audi sedans to own once it is out of warranty.
The V10 engine is closely related to high performance models and is extremely complex. It requires careful maintenance, and many repair jobs involve extensive labor due to tight packaging. Carbon buildup, oil leaks, and other engine related problems can lead to very expensive service visits as the car ages.
Fuel economy is another major downside. A large V10 engine consumes fuel at a high rate even in normal driving. For a daily driver, the constant fuel costs can add up quickly, especially when combined with premium fuel requirements.
Beyond the engine, the S6 includes upgraded brakes, suspension components, and performance parts that cost more to replace than those on standard A6 models. As these parts wear, routine maintenance becomes significantly more expensive.
We are highlighting the S6 C6 V10 because it offers supercar level character in a sedan body, but at a serious financial cost. For most used buyers, the combination of complex engineering, high fuel use, and expensive repairs makes it a car to admire rather than own.
5. Audi A7 4.0T Sedan
The A7 equipped with the 4.0 liter twin turbo V8 delivers impressive performance and a sleek luxury design, but it can be a risky used purchase for buyers focused on long term affordability. While the power and refinement are undeniable, the engine and supporting systems are complex and can become very expensive to maintain as the vehicle ages.
This V8 engine operates under high heat and pressure, which can accelerate wear on internal components and surrounding systems. Turbochargers, cooling lines, and oil related components are all potential trouble spots over time. Repairs in these areas often require significant labor because of tight packaging in the engine bay.
Fuel consumption is also noticeably higher than in V6 powered A7 models. For drivers who do not need the extra performance, the added fuel cost can feel unnecessary. Routine maintenance such as spark plugs, ignition components, and fluid services also tends to be more expensive due to the engine’s size and design.
The A7 platform includes advanced electronics and luxury features that can develop issues as the car gets older. Air suspension systems, infotainment hardware, and driver assistance components add comfort but also increase the number of expensive parts that may need attention.
We are including the A7 4.0T because it often looks like a high performance luxury bargain on the used market. In reality, the long term maintenance and repair demands can quickly erase any savings from the lower purchase price.
6. Audi A8 D4 W12 Sedan
The A8 D4 equipped with the W12 engine represents the peak of Audi engineering and luxury from its era. It delivers exceptional smoothness, effortless power, and an incredibly refined driving experience. However, it is also one of the most complex and expensive Audi sedans to own once it is out of warranty.
The W12 engine is extremely intricate, effectively combining two narrow angle V6 engines into one unit. This design results in a large number of components packed into a tight space. Even routine service tasks can be labor intensive, and major repairs can be extraordinarily costly.
Beyond the engine, this version of the A8 includes nearly every luxury and technology feature Audi offered at the time. Air suspension, advanced driver assistance systems, and complex electronics all contribute to comfort but also increase the risk of expensive failures as the car ages.
Fuel economy is predictably poor for a large luxury sedan with a W12 engine. Frequent fuel stops and high insurance and parts costs add to the long term financial commitment required to keep the car running properly.
We are highlighting the A8 D4 W12 because it is an impressive showcase of luxury and performance, but also a potential financial burden. For most used car buyers, the extreme complexity and high running costs make it far less practical than simpler Audi sedan options.
Buying a used Audi sedan can be a great way to experience premium design, advanced technology, and confident road manners at a far lower price than new. The key is choosing the right model and engine combination.
Some Audi sedans age gracefully and deliver years of enjoyable driving, while others become costly due to complex engineering and known mechanical weaknesses.
The models we would buy used tend to feature well regarded turbocharged four cylinder or supercharged V6 engines paired with balanced chassis tuning. Cars like the A4 B8.5, A6 C7 3.0T, and A7 C7 3.0T offer a strong mix of performance, comfort, and relatively manageable long term ownership when properly maintained.
Smaller options like the A3 8V provide Audi quality in a more efficient and affordable package, while the A8 D4 3.0T gives flagship luxury with a more sensible engine choice.
On the other hand, the Audi sedans we would avoid often combine high performance engines with heavy complexity.
Older 2.0T models with oil consumption issues, large V8 sedans, V10 powered performance variants, and W12 flagships can all generate very high repair and fuel costs. Aging air suspension and electronics add further risk.
In the end, a smart used Audi purchase is about balance. Choosing a model with a solid engine and reasonable complexity helps you enjoy Audi refinement without turning ownership into a financial strain.
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