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Used Audi A6 Avant S Line for sale

9 cars

An Audi A6 Avant S line for sale is a stylish and well-equipped version of the popular A6 Avant, which is one of the most spacious estates you can buy. It’s a premium model with a more affordable price tag than many of its rivals, especially if you look out for our finance deals on used Audi A6 Avant S line cars.

Personal Contract Purchase (PCP) representative example

Based on a cash price of £12,550, with a £2,000 customer deposit, borrowing £10,550 at a representative APR of 11.4%. 48 monthly payments of £194.03. Fixed rate of interest per annum 5.93%. Optional final payment £5,005.00. Option-to-purchase fee £10. Amount of interest £3,768.44. Total amount payable £16,318.44. Annual mileage limit 8,000 miles. Excess mileage charge 4p per mile.

  1. Audi A6 Avant

    40 TDI S Line 5dr S Tronic

    • Vehicle Year, 2019
    • Mileage, 62,983 miles
    • Fuel Type, Diesel
    • Transmission Type, Automatic
    Full price.£19,999
    Price per month. pcp. £326

  2. Audi A6 Avant

    270kW Performance 100kWh S Line 5dr Auto [S+V]

    • Vehicle Year, 2025
    • Mileage, 1,344 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£50,099
    Price per month. pcp. £700

  3. Audi A6 Avant

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle Year, 2025
    • Mileage, 4,374 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£51,064
    Price per month. pcp. £738

  4. Audi A6 Avant

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle Year, 2025
    • Mileage, 9,758 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£51,089
    Price per month. pcp. £752
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  6. Audi A6 Avant

    270kW Performance 100kWh S Line 5dr Auto [S+V]

    • Vehicle Year, 2025
    • Mileage, 5,727 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£52,039
    Price per month. pcp. £756

  7. Audi A6 Avant

    210kW 83kWh S Line 5dr Auto

    • Vehicle Year, 2025
    • Mileage, 2,755 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£50,094
    Price per month. pcp. £754

  8. Audi A6 Avant

    270kW Performance 100kWh S Line 5dr Auto [S+V]

    • Vehicle Year, 2025
    • Mileage, 6,612 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£50,604
    Price per month. pcp. £725

  9. Audi A6 Avant

    210kW 83kWh S Line 5dr Auto

    • Vehicle Year, 2025
    • Mileage, 3,484 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£48,889
    Price per month. pcp. £728

  10. Audi A6 Avant

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle Year, 2025
    • Mileage, 2,777 miles
    • Fuel Type, Electric
    • Transmission Type, Automatic
    • Range In Miles,
    Full price.£51,759
    Price per month. pcp. £750

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    • Audi

    • A6 Avant

    • S Line

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Audi A6 Avant S Line buying guide

What is the Audi A6 Avant S line?

An Audi A6 Avant S line comes with plenty of upgrades over more standard models, including a sporty bodykit and more comforts inside.

In the case of the latest model, it has a 565-litre boot, which extends to 1,680 litres with the rear seats folded.

It’s the floorspace on offer that makes this car appealing, however, because you can fit large and bulky items in the back of an A6 Avant S line.

S line was introduced for the third-generation model so you can pick from nearly two decades’ worth of models to suit your budget and needs.

– Read our Audi A6 review

What are the Audi A6 Avant S line specs?

The latest models are only available with 2.0-litre engines, and the most popular for long-distance drivers will likely be the 204hp 40 TDI diesel.

There are also 204hp and 265hp variants of the petrol engine, which are badged 40 TFSI and 45 TFSI, as well as a powerful 299hp plug-in hybrid, badged 50 TFSI e, that can do around 40 miles on electric power alone.

For a while, there was also a 3.0-litre V6 diesel, badged 50 TDI, with 286hp. The latest-generation model, introduced in 2018, comes with mild hybrid technology for improved efficiency, depending on the specific engine.

Used Audi A6 Avant S line features and equipment

A used A6 Avant S line comes with a sportier aesthetic than lower-spec models, including revised bumpers, large alloys, and a lower suspension setup.

Other equipment includes matrix LED headlights that adapt to prevent blinding oncoming traffic, cruise control, front and rear parking sensors, a reversing camera, keyless go, and a powered boot lid.

On the inside, there’s four-zone climate control, ambient lighting, a digital instrument cluster, a large touchscreen infotainment system with Apple CarPlay and Android Auto, and another screen on the centre console for controlling the cabin’s temperature.

Where the A6 Avant S line sits in the Audi range

S line is a high-spec model, but it sits in the middle of the range beneath the more stylish Black Edition variant.

The most affordable model is the Sport trim, which comes with more than just the basics. Audi stopped selling the entry-level SE car when it introduced this model in 2018.

For a period, there was also a very premium Vorsprung model available, which was very expensive. Fortunately, buying a used one is far better value for money.