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Audi A6
Spacious premium executive car
Overview
Audi A6 in Brief
The Audi A6 is a showcase of German engineering and luxurious comfort, having firmly established itself as one of the most respected executive-class cars on the market. It is designed for the driver who demands prestige, technical superiority, and uncompromising ride comfort from their vehicle.
It sits in the Audi lineup between the A4 and the larger A8, with its sportier sibling being the Audi A7. The fully electric Audi A6 e-tron is its own separate model. Saka's selection includes multiple generations and powertrains: diesel, gasoline, and plug-in hybrid.
Who Is the Audi A6 For?
The Audi A6 is the right choice for you if
- You drive long distances frequently: the spacious, comfortable cabin and stable ride make it ideal for long business trips and vacations.
- You need cargo space: the Avant's trunk holds 565 liters, and with the seats folded down, you get up to 1,680 liters of space.
- You want to choose your powertrain: the selection includes diesel, gasoline, and plug-in hybrid options.
- You drive in winter conditions: quattro all-wheel drive provides traction on slippery roads.
Check out our test drive videos where we put the Audi A6 through its paces in real-world conditions: Saka's Test Drive Videos.
Saka's extensive selection features the highest-quality inspected pre-owned vehicles to meet the needs of even the most discerning driver. Whether you choose the iconic Quattro all-wheel drive, a powerful diesel, or an advanced hybrid, the Audi A6 delivers an experience where technology and elegance are in perfect balance.
Read more about the model on the tabs below!
Technical Specifications
Engines and Powertrains
Diesel
The most common diesel engines in the C7 generation are the 2.0 TDI (including an economical ultra version) and the 3.0 V6 TDI, whose most powerful biturbo version produces 235 kW. In the C8 generation, diesel engines are mild hybrids: 35 TDI, 40 TDI, and 45 TDI, as well as the six-cylinder 50 TDI (286 hp).
Gasoline
The C7 generation features the 2.0 TFSI and 3.0 V6 TFSI. In the C8 generation, gasoline engines are mild hybrids: the 45 TFSI (265 hp) and the six-cylinder 55 TFSI (340 hp).
Plug-in Hybrids (TFSI e)
The plug-in A6 models belong to the C8 generation, with the first one (50 TFSI e) going on sale in 2021. The available options are the 50 TFSI e (299 hp) and the 55 TFSI e (367 hp). The electric range is approximately 60 kilometers, making it possible to handle short daily commutes on electricity alone.
All-Wheel Drive
The Quattro all-wheel drive system automatically distributes power to where traction is needed. Some A6 models, particularly the smaller diesel variants, are front-wheel drive, so be sure to verify the drivetrain on a per-vehicle basis.
Generations
Generation | Production Years | Engines | What You Should Know |
C6 | 2004 to 2011 | Varies | Less common; only individual units available in inventory. |
C7 | 2011 to 2018 | 2.0 TDI (including ultra), 3.0 V6 TDI, 2.0 TFSI, 3.0 V6 TFSI | Updated in 2014: engines were revised, and S tronic replaced multitronic in front-wheel-drive models. |
C8 | 2018 to 2024 | Mild hybrids 35, 40, 45, and 50 TDI as well as 45 and 55 TFSI; plug-in hybrids 50 and 55 TFSI e | Virtual Cockpit, touchscreen MMI, and a facelift in 2023. |
The C8 generation Sedan was unveiled in February 2018 and the Avant in April 2018.
Body Styles and Dimensions
The dimensions below apply to the C8 generation.
Sedan | Avant | |
Length | approx. 4,940 mm | approx. 4,940 mm |
Height | approx. 1,450 mm | between 1,450 and 1,490 mm |
Cargo space | 530 liters (approx. 360 liters in the plug-in hybrid) | 565 liters (405 liters in the plug-in hybrid) |
Cargo space with rear seats folded | 1,680 liters (1,535 liters in the plug-in hybrid) |
The C7 generation Avant offers the same cargo capacity: 565 liters and 1,680 liters with the rear seats folded.
The Audi A6 Allroad, which features raised suspension and all-wheel drive, is based on the Avant and is well suited for rougher roads and winter conditions.
Safety and Driver Assistance Systems
The Audi A6 (C8) received a five-star rating in Euro NCAP testing in the fall of 2018. The Audi pre sense front collision avoidance system came standard. Additional available features include adaptive cruise control, blind spot warning, and Matrix LED headlights.
Trim Levels and Top Features
The Audi A6 is typically a well-equipped vehicle, but the level of equipment varies by generation, model year, and individual unit. In the used car market, the most common trim levels are Business, Business Sport, and S line. There are many optional extras available, meaning two cars with the same name can differ significantly from one another. It is always worth checking the equipment list for each individual vehicle to make sure it meets your needs.
Top Features of the Audi A6
- Lighting: Matrix LED headlights (in the C8 generation); older models feature Bi-Xenon and LED lights.
- Driver assistance systems: adaptive cruise control, blind spot warning, 360-degree camera, parking sensors, rear-view camera, and Night Vision.
- Head-up display (HUD): projects speed and navigation instructions onto the windshield.
- Suspension and drivetrain: air suspension and Quattro all-wheel drive.
- Instrument cluster and interface: Virtual Cockpit digital instrument cluster and touchscreen MMI navigation in the C8 generation.
- Seats and interior: sport seats, memory seats, ventilated Comfort seats, and leather or leather-Alcantara upholstery.
- Roof: panoramic glass roof or sunroof.
- Audio system: Audi Sound System or BOSE; some vehicles also feature Bang & Olufsen.
- Heating and entry: Webasto auxiliary heater, engine block heater, and KeylessGo entry system.
- Trailer hitch: an optional add-on that should be verified on a per-vehicle basis.
Buyer's Guide
Maintenance and Running Costs
The maintenance and running costs of the Audi A6 are on par with other large premium cars, in the same class as the BMW 5 Series, Mercedes-Benz E-Class, and Volvo V90. The car is large and heavy, so tires, brakes, and many spare parts are significantly more expensive than on smaller cars. However, the A6 is a common model, so the availability of spare parts and service is good.
Costs are most affected by the engine and trim level. The simpler 2.0 TDI is generally the most affordable to maintain, while V6 engines, quattro all-wheel drive, air suspension, and the additional systems of the plug-in hybrid add to the maintenance workload. The larger wheels on S line models increase tire costs. It's worth checking transmission oil changes and timing system maintenance before purchasing, and on the plug-in hybrid, battery condition affects both value and running costs. In addition to the purchase price, compare upcoming service needs, tire condition, insurance, and vehicle tax.
What Should You Check on a Used Audi A6?
- Service history: check the dates, mileage, and repairs carried out. Also find out what services are coming up next.
- Transmission: for the S tronic dual-clutch transmission, ask about the oil change history, as the general recommendation is to change the oil approximately every 60,000 kilometers. Test pulling away, crawling, reversing, and gear changes both cold and warm.
- Timing system: the setup depends on the engine. Listings for 2.0 TDI cars often mention timing belt replacement, while V6 engines use a chain-driven system. Listen for chain rattle on cold starts and check the replacement history.
- Oil consumption: excessive oil consumption has been reported in 2.0 TFSI gasoline engines, including the plug-in 50 TFSI e engine. Check the oil level and ask about top-ups.
- Diesel: 2.0 TDI cars manufactured before 2015 may have had an emissions software update from the manufacturer. Ask whether the update has been applied.
- Air suspension: if the car has air suspension, make sure it sits level and that all ride height settings work. Replacing the compressor and air struts is expensive.
- All-wheel drive and chassis: listen for clunks over bumps and make sure the car tracks straight. Uneven tire wear may indicate a need for a chassis inspection.
- Electronics and displays: test the MMI screen, navigation, Virtual Cockpit instrument cluster, cameras, and parking sensors. The most commonly reported issues on the C8 generation relate to interior components and other electrical systems.
- Plug-in hybrid: ask for the battery test results and check the charging cable, charging port, and electric range. Charging from a standard household outlet takes approximately six hours from empty.
- Optional equipment: test the Webasto heater, block heater, electrically deployable tow hitch, and power tailgate.
- Tires and wheels: check the condition, age, and wear of both sets of tires. The larger tires on S line models are more expensive when new.
Sedan or Wagon?
The wagon is more practical if you transport cargo, children, or sports equipment. The sedan is a better fit if trunk space isn't a priority and you prefer a traditional three-box design. On the plug-in hybrid, the trunk is smaller than on other A6 models (approximately 360 liters on the sedan, approximately 405 liters on the wagon), so check your space requirements in advance.
Diesel, Gasoline, or Plug-In Hybrid?
- Diesel: well suited for long drives and the most common powertrain in the A6. In the newer C8 models, the diesels are mild hybrids. Short trips are not diesel's strong suit, so it's not the best choice if you only drive in the city.
- Gasoline: offers a smooth and quiet driving experience. The six-cylinder 55 TFSI (340 hp) is the most powerful option.
- Plug-in hybrid (TFSI e): a good fit for buyers who can charge at home or at work, allowing everyday commutes to be completed on electricity. In Finland, batteries in electric vehicles and plug-in hybrids are tested with the Aviloo battery test.
Competitors and Comparison
Comparison Between Audi Models
Smaller Audis
Larger Audis
The fully electric option is the Audi A6 e-tron.
Comparison With Competitors
The Audi A6 competes in the large premium sedan and wagon segment. In a cargo space comparison of the latest models, the Mercedes-Benz E-Class wagon offers 640 liters and the BMW 5 Series Touring offers 570 liters, while the A6 Avant comes in at 565 liters.
- BMW 5 Series: sporty driving feel and a wide range of engine options.
- Mercedes-Benz E-Class: spacious wagon with a comfort-focused character.
- Volvo V90: Scandinavian wagon available with plug-in hybrids.
- Volkswagen Arteon: spacious liftback model.
- Skoda Superb: significantly larger cargo space for those on a tighter budget.
What Do These Models Have in Common?
All of them are large, comfortable, and well-equipped cars for long trips. They offer diesel, gasoline, and plug-in hybrid powertrains, and most are available with all-wheel drive. Pay particular attention to cargo space, drivetrain, and equipment levels when comparing.
Summary
The Audi A6 is a great fit for buyers who want a spacious and comfortable car for long trips and value quattro all-wheel drive. The Avant offers more cargo space, while the Sedan has a more classic look. You can choose between diesel, gasoline, or plug-in hybrid powertrains. Saka's inventory includes both C7 and C8 generation models for you to compare.
Audi A6 – Frequently Asked Questions
What are the most common engine options for the Audi A6?
The most common options are the 2.0 TDI and 3.0 V6 TDI in older models, and the 40 TDI and 45 TDI in C8 models. On the gasoline side, there are the 2.0 TFSI, 45 TFSI, and 55 TFSI, while plug-in hybrid options include the 50 TFSI e and 55 TFSI e.
What is the difference between the A6 Avant and the Sedan?
The Avant is a station wagon with a cargo capacity of 565 liters (1,680 liters with the rear seats folded). The Sedan has a trunk capacity of 530 liters. The Sedan is a traditional notchback, while the Avant is better suited for larger loads.
What is the difference between the C7 and C8 generations?
The C7 was produced between 2011 and 2018, while the C8 has been produced from 2018 through the end of 2024. The C8 features primarily mild-hybrid engines, with plug-in hybrids added to the lineup in 2021. The interior includes a Virtual Cockpit instrument cluster.
Is the Audi A6 a safe car?
The Audi A6 (C8) received a five-star rating in Euro NCAP testing in the fall of 2018.
What is the A6 TFSI e?
It is a plug-in hybrid that pairs a 2.0-liter gasoline engine with an electric motor. The electric-only range is approximately 60 kilometers.
What is the difference between the A6 and the A6 Allroad?
The Allroad features a raised suspension and all-wheel drive, and it is based on the Avant. See A6 Allroad.
What is the difference between the A6 and the A6 e-tron?
The A6 e-tron is a fully electric vehicle and its own distinct model. See A6 e-tron.
What should you check when buying a used A6?
Check the service history, transmission operation, and the individual vehicle's features, such as air suspension, a tow hitch, and an auxiliary heater. Saka's condition inspection and Rehti certificate summarize the key findings for vehicles priced over 10,000 euros.
Easy car deals at Saka!
Saka is Finland's largest used-car dealer, and our operations are built on strict quality control. We select only the best examples among used cars and make sure every car we sell lives up to our promises.
Every used car priced over €10,000 that comes up for sale at Saka undergoes an independent third-party condition inspection, and the key findings are compiled for the customer in the Rehti certificate – the new standard for used-car condition inspections.
Why buy a car from Saka?
- Thorough condition inspection and the Rehti certificate: Our used cars priced over €10,000 undergo an independent third-party condition inspection, and the batteries of electric cars and plug-in hybrids are tested with the Aviloo battery test. The key findings of the inspection are compiled for the customer in the Rehti certificate. Read more about the Rehti certificate, the condition inspection and the battery test.
- Flexible car financing: We offer ready-negotiated financing, letting you pay for your car easily in even monthly instalments – even without a down payment if needed.
- Trading in your car: Sell us your old car! We buy cars under 10 years old with under 225,000 km on the clock. When you buy a car from us, we'll take your old car in trade.
- Home delivery: We deliver the car of your dreams to a Saka showroom or straight to your front door anywhere in Finland. Read more about home delivery.
On our site you'll also find plenty of information on different car models and fuel types. On our media page you'll find, besides our sweepstakes, things like:
- Guides to buying an electric car, a hybrid car and a used car
- Test-drive videos, where experienced car journalist Anniina Pohjonen test-drives Saka's most popular cars
- Tip videos, where our car salespeople answer the most common questions about choosing a car
- Stylish vibe videos of the most popular car models
Interested in a A6?
Get in touch!Contact one of our experts and find the perfect A6 for you.