Running costs

Audi A6 running costs: what UK ownership really costs

Audi A6 UK running costs: fuel or electric, insurance group, road tax, servicing and depreciation.

Updated 4th September 2026 DVSA data: Across 121,366 recorded MOT tests, 16.6% failed.

Audi A6
Image via Wikipedia, CC-licensed.

The Audi A6 offers a blend of performance and luxury, but its running costs can be significant. Fuel efficiency varies by engine choice, insurance groups range from 30 to 50, road tax depends on emissions, servicing intervals are typically every 12 months or 10,000 miles, and depreciation can be steep, particularly in the first few years.

Fuel Costs

Fuel efficiency for the Audi A6 varies significantly depending on the engine and model year. For example, the 2.0-litre TDI diesel engine is known for its efficiency, making it a popular choice for those concerned about fuel costs.

When calculating fuel costs, consider the current fuel prices in the UK, which fluctuate regularly.

Insurance Costs

Insurance for the Audi A6 can be on the higher side, with insurance groups ranging from 30 to 50. The specific group depends on the model, engine size, and additional features. For instance, the A6 2.0 TDI is generally in a lower insurance group compared to the high-performance S6 or RS6 models.

When calculating insurance costs, it is essential to shop around and consider factors such as your driving history, location, and the level of coverage you require. Comprehensive insurance can significantly increase your annual premium, so it is advisable to compare quotes from various providers.

Road Tax

The road tax for the Audi A6 is determined by its CO2 emissions, which vary by engine type. For example, the 2.0-litre diesel model typically incurs a lower tax rate due to its reduced emissions.

Newer models benefit from lower tax rates due to improved efficiency standards. However, older models with higher emissions can be costly to tax.

Servicing Intervals

The Audi A6 has recommended servicing intervals of 12 months or 10,000 miles, whichever comes first. This regular maintenance is crucial for keeping the vehicle in optimal condition and can help prevent more significant issues down the line.

Servicing costs can vary based on the dealership or independent garage you choose, but it is essential to budget for these expenses. Additionally, Audi offers a service plan that can help spread out these costs over time, making it easier for owners to manage their budgets.

Depreciation

Depreciation is a significant factor in the total ownership cost of an Audi A6. Factors influencing depreciation include mileage, condition, and market demand for specific models.

The A6 tends to hold its value better than some competitors, especially if well-maintained and with a full service history. However, buyers should be aware that higher-spec models may depreciate faster due to their initial higher purchase price. Keeping an eye on market trends and maintaining the vehicle can help mitigate depreciation losses.

Additional Costs

In addition to fuel, insurance, road tax, servicing, and depreciation, there are other costs associated with owning an Audi A6.

Moreover, unexpected repairs can arise, so it’s wise to set aside a budget for these potential expenses. Regular maintenance and addressing minor issues promptly can help keep overall ownership costs manageable.

Audi A6 recall record

35 recalls have been issued for the Audi A6, between 1997 and 2025.

  1. Belt buckle rivet missing

    R/2025/508

    Issued 14 November 2025

    On affected vehicles an important connection in the seat belt buckle may not have been produced correctly during the assembly process.

    Remedy:The belt buckles on both front seats (left and right) must be replaced.

    Affects cars built Mar 2025 to Apr 2025

  2. Software update for battery control unit

    R/2025/463

    Issued 24 October 2025

    On affected vehicles there may be defective battery modules which may result in a fire hazard when charging the high-voltage battery.

    Remedy:Update the software of the high-voltage battery to improve the self-diagnosis capabilities. Vehicle owners are advised to not charge the high-voltage battery using external charging sources and also not use the e-tron modes “Battery charge” and “Battery hold” until the update is applied.

    Affects cars built Feb 2021 to Jun 2024

  3. Replacing front seat belt

    R/2025/426

    Issued 30 September 2025

    On affected vehicles a sub-component of the belt force limiter in the front seat belt retractors may be damaged. Either one or both front seat belt retractors may be affected.

    Remedy:Replace the affected seat belts.

    Affects cars built Jul 2025 to Jul 2025

  4. Stop-drive TAKATA PSAN

    R/2025/387

    Issued 8 August 2025

    Urgent Safety Warning – Do Not Drive Your Vehicle Affected vehicles were originally allocated to or used for an extended period of time in a region with a climate zone considered to as HIGH RISK. Certain front airbags contain an ageing inflator propellant that may explode when deployed due to long-term exposure to heat and humidity. If the airbag inflator explodes metal fragments may be ejected causing life-threatening or fatal injuries to anyone in the vehicle.

    Remedy:Affected airbags will be be replaced. You can contact Audi's dedicated Takata Stop Drive helpline at 0113 526 9646 (MONDAY to FRIDAY 9:00AM to 5:00PM.

    Affects cars built Jul 2004 to Dec 2010

31 older recalls not shown.

A recall applies to a build range, not to every car of this model. Check a registration to see whether one specific vehicle has an outstanding recall.

Audi A6 MOT record

From 121,366 recorded MOT tests, 16.6% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20243293.3%33,847 mi
20236083.1%55,817 mi
20223,9668.2%30,189 mi
20214,4557.7%40,064 mi
20203,3888.4%49,548 mi
20198,64410.3%60,090 mi
20188,02612.3%67,943 mi
20179,16012.6%80,094 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements34.0%
  2. A suspension pin, bush or joint excessively worn31.6%
  3. A tyre seriously damaged16.1%
  4. a brake lining or pad worn below 1.5mm9.9%
  5. Brake disc or drum excessively weakened, insecure or fractured8.4%

Figures cover every Audi A6 tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

Audi A6 official figures

Median across 35 variants on sale, diesel electric, electricity, electricity / petrol, petrol, petrol electric.

Combined economy
39.8 mpg
WLTP median across variants
CO2 emissions
164.5 g/km
Sets the first-year tax rate
Electric range
401 miles
Manufacturer WLTP figure

Official figures for new cars. Real economy varies with driving, load and conditions.

Frequently asked questions

What are the average fuel costs for an Audi A6?

The average fuel costs for an Audi A6 can vary depending on the engine type and driving habits. Generally, you can expect to spend more on fuel for larger engines compared to smaller, more efficient ones.

How much does insurance typically cost for an Audi A6?

Insurance costs for an Audi A6 can vary widely based on factors such as your age, driving history, and location. On average, you might find insurance premiums to be higher than for smaller cars due to the A6's value and performance.

What are the maintenance costs associated with an Audi A6?

Maintenance costs for an Audi A6 can be higher than average due to the brand's premium status. Regular servicing, parts, and repairs can add up, so it's wise to budget accordingly.

How reliable is the Audi A6 in terms of running costs?

The Audi A6 is generally considered reliable, but like any vehicle, it can have issues that affect running costs. Regular maintenance and servicing can help keep it running smoothly and reduce unexpected expenses.

What are the road tax costs for an Audi A6?

Road tax costs for an Audi A6 depend on the specific model and its CO2 emissions. Generally, newer models with lower emissions may benefit from reduced tax rates.

Are there any common issues that could increase running costs?

Common issues that could increase running costs for an Audi A6 include electrical problems, suspension wear, and engine issues. Staying on top of regular maintenance can help mitigate these risks.

How does the Audi A6 compare to other cars in its class regarding running costs?

The Audi A6 tends to have higher running costs compared to some competitors due to its premium features and performance. However, it may offer better reliability and resale value, which can offset some of the costs.

Sources