Used Audi A6 for Sale – Inspected, ULEZ Compliant & Ready to Buy

Why Buy a Used Audi A6?

The Audi A6 is a favourite among UK drivers looking for a blend of executive comfort, advanced technology and understated style. Buying used means you get all of that at a fraction of the new price, with depreciation already absorbed by previous owners. The A6 is available in saloon, estate (Avant) and Allroad variants, offering versatility for business, family, or long-distance commuting. At SecondCar, every used Audi A6 is independently inspected and backed by a free downloadable report, so you can see its true condition before you bid or buy.

All A6s currently listed are ULEZ compliant, making them a practical choice for city driving and avoiding Clean Air Zone charges. You can filter by year, mileage, body style and fuel type to find the right match for your needs.

Current Used Audi A6s in Stock

Our live inventory includes three Audi A6s from 2015 to 2019, with current prices ranging from £200 to £1,800. Average mileage is 93,259 miles, and every car is ULEZ compliant. All lots are available with Buy Now pricing as well as auction bidding, so you can choose the approach that suits you best.

• 2015 Audi A6 Allroad 3.0 TDI V6 S Tronic quattro – 104,380 miles, automatic
• 2016 Audi A6 Avant 2.0 TFSI Quattro S Line Auto – 53,000 miles, automatic
• 2019 Audi A6 2.0 TDI 40 Sport S Tronic Saloon – 122,396 miles, automatic

Each listing includes a full photo gallery, downloadable inspection report, DVLA and MOT history, and an HPI-style check. This means you can quickly assess not just the vehicle’s appearance, but its maintenance, ownership, and legal status too.

Running Costs, Insurance and ULEZ

The Audi A6 is known for refined engines and a comfortable ride, but running costs vary by engine and specification. Petrol and diesel options are both present in our current stock, and all are ULEZ compliant—so you won’t pay extra to drive in London or other Clean Air Zones. Insurance groups for the A6 typically range from 27 to 40, depending on model year and trim, so it’s worth checking quotes before you buy.

Fuel economy can be strong, especially for the 2.0 TDI models, which often achieve over 50mpg on a run. Servicing and parts are widely available, but as with any executive car, budgeting for regular maintenance is sensible. MOT history and advisories are clearly listed with each lot, helping you spot any potential running cost issues before you commit.

What to Check When Buying a Used Audi A6 at Auction

Every SecondCar A6 comes with a free, downloadable inspection report, graded for condition and showing any cosmetic or mechanical issues. Still, it’s wise to:

• Review the full photo gallery for signs of accident repair or heavy wear
• Check the MOT history for recurring advisories
• Read the inspection report’s damage map and grading
• Use the DVLA and HPI data to confirm mileage, ownership and outstanding finance
• Look for evidence of regular servicing, especially for diesels and Allroad variants
• Consider the cost of tyres, brakes and timing belt changes (if due)

Unlike some auctions, you’ll never be bidding blind: all key details are available up front, and you can ask questions before bidding closes.

How Bidding, Buy Now and Fees Work

SecondCar’s process is designed for transparency. Register for free to see all details and place bids. Auctions use clear increments: £50 up to £1,000, £100 up to £5,000, and so on. If a bid is placed in the final two minutes, the auction timer extends by another two minutes—so there’s no last-second sniping. If you want certainty, use Buy Now to secure the car immediately at a fixed price (if available). The buyer’s premium is 5% of the hammer price (minimum £250), plus VAT at 20% on the fees only. For example, a £1,600 winning bid would have a £250 premium plus £50 VAT, totalling £1,900 for the car and fees, before optional delivery.

After winning, pay securely by UK bank transfer using Open Banking. Once payment is confirmed, collection or UK delivery can be arranged, and the V5C logbook is transferred into your name.

Reliability, Common Issues and What Sets the A6 Apart

The Audi A6 is generally reliable, especially when well-maintained. Common points to check include:

• Timing belt and water pump changes (especially on diesels)
• Automatic gearbox servicing (for S Tronic models)
• Suspension wear on higher-mileage cars
• Electrical issues (check all functions and infotainment)
• Signs of previous accident repairs

SecondCar’s inspection report highlights any mechanical or cosmetic concerns, so you won’t face surprises after purchase. Compared to rivals like the BMW 5 Series or Mercedes E-Class, the A6 offers understated style, strong refinement and a good balance of comfort and driver engagement. ULEZ compliance across all current stock is a real plus for city drivers.

Why Buy Your Used Audi A6 from SecondCar?

SecondCar combines the best of online convenience with the reassurance of independent inspections and transparent data. Every A6 comes with a free report, MOT and DVLA data, and (where available) HPI-style checks for peace of mind. The process is straightforward: register, research, bid or buy, pay securely, and arrange collection or delivery. There’s no pressure, no hidden fees, and you get all the information you need to make a smart, informed purchase. If you’re comparing options, check our other used Audi and saloon listings, or see how we work at How It Works and Fees.