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Used Audi A6 S Line for sale

18 cars

Each Audi A6 S line for sale ensures that you get not only one of the most affordable premium saloon and estate models available, but one that looks great, because the S line trim adds even more sporty style. Buy a newer used Audi A6 S line and you’ll also get mild hybrid power as standard. The Audi A6 S line can be even more affordable than you think with our range of flexible finance deals.

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

    Audi A6

    40 TDI S Line 4dr S Tronic

    • Vehicle year, 2019
    • Mileage, 62,449 miles
    • Fuel type, Diesel
    • Transmission type, Automatic
    Full price.£18,299
    Price per month. pcp. £289
  2. Audi A6

    Audi A6

    40 TDI S Line 4dr S Tronic

    • Vehicle year, 2019
    • Mileage, 49,490 miles
    • Fuel type, Diesel
    • Transmission type, Automatic
    Full price.£18,721
    Price per month. pcp. £294
  3. Audi A6

    Audi A6

    40 TDI S Line 4dr S Tronic [Tech Pack]

    • Vehicle year, 2022
    • Mileage, 47,987 miles
    • Fuel type, Diesel
    • Transmission type, Automatic
    Full price.£22,499
    Price per month. pcp. £345
  4. Audi A6

    Audi A6

    40 TDI Quattro S Line 4dr S Tronic [Tech Pack]

    • Vehicle year, 2022
    • Mileage, 28,291 miles
    • Fuel type, Diesel
    • Transmission type, Automatic
    Full price.£26,899
    Price per month. pcp. £418
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  6. Audi A6

    £300 off

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 22 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£39,614
    Price per month. pcp. £621
  7. Audi A6

    £300 off

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic [Tech Pack]

    • Vehicle year, 2025
    • Mileage, 21 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£39,754
    Price per month. pcp. £606
  8. Audi A6

    £800 off

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 21 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£40,089
    Price per month. pcp. £632
  9. Audi A6

    £300 off

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 16 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£40,094
    Price per month. pcp. £632
  10. Audi A6

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 22 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£40,539
    Price per month. pcp. £642
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  12. Audi A6

    £400 off

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 17 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£40,589
    Price per month. pcp. £643
  13. Audi A6

    £450 off

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 21 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£40,589
    Price per month. pcp. £643
  14. Audi A6

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 22 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£40,589
    Price per month. pcp. £643
  15. Audi A6

    Audi A6

    50 TFSI e Quattro S Line 4dr S Tronic

    • Vehicle year, 2025
    • Mileage, 11 miles
    • Fuel type, Petrol plug-in hybrid
    • Transmission type, Automatic
    Full price.£41,089
    Price per month. pcp. £655
  16. Audi A6

    £1000 off

    Audi A6

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle year, 2025
    • Mileage, 4,054 miles
    • Fuel type, Electric
    • Transmission type, Automatic
    • Range in miles,
    Full price.£44,089
    Price per month. pcp. £642
  17. Audi A6

    Audi A6

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle year, 2025
    • Mileage, 102 miles
    • Fuel type, Electric
    • Transmission type, Automatic
    • Range in miles,
    Full price.£45,089
    Price per month. pcp. £693

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  19. Audi A6

    £850 off

    Audi A6

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle year, 2025
    • Mileage, 19 miles
    • Fuel type, Electric
    • Transmission type, Automatic
    • Range in miles,
    Full price.£45,614
    Price per month. pcp. £705
  20. Audi A6

    £750 off

    Audi A6

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle year, 2025
    • Mileage, 16 miles
    • Fuel type, Electric
    • Transmission type, Automatic
    • Range in miles,
    Full price.£46,094
    Price per month. pcp. £716
  21. Audi A6

    Audi A6

    270kW Performance 100kWh S Line 5dr Auto

    • Vehicle year, 2025
    • Mileage, 15 miles
    • Fuel type, Electric
    • Transmission type, Automatic
    • Range in miles,
    Full price.£47,099
    Price per month. pcp. £740

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1 to 18 of 18 results

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Audi A6 S Line buying guide

What is the Audi A6 S line?

An Audi A6 S line is a high-spec version of an already high-spec car, so it comes loaded with car tech and safety kit.

S line is the name given to Audi’s sporty-looking trim level, which means a used Audi A6 S line comes with a bodykit inspired by the sporty S6 and RS6 models, but without their high running costs.

Besides what’s already on offer, S line models are extremely desirable, which means there should be plenty of used A6 S line cars for sale to pick from.

– Read our Audi A6 review

What are the Audi A6 S line specs?

Every version of the fifth-generation C8 model, introduced in 2018, comes with a mild hybrid engine. Currently, there are 204hp petrol (40 TFSI) and diesel (40 TDI) engines, and a 265hp (45 TFSI) petrol – all are 2.0-litre engines.

There’s also a 299hp plug-in hybrid, badged 50 TFSI e, which should do around 40 miles between charges.

Previously, there were 286hp 3.0-litre V6 diesels (50 TDI) and 340hp 3.0-litre V6 petrols (55 TFSI) on sale, but Audi stopped selling these in the interest of efficiency. Still, there are plenty available used.

Used Audi A6 S line features and equipment

The fifth-generation model introduced a completely redesigned, high-tech interior. As well as a digital instrument cluster and a touchscreen infotainment system, another touchscreen display on the centre console serves as a control panel for car features like climate control.

Depending on the model year, a used Audi A6 S line also comes with a 360-degree parking camera, matrix LED headlights that dim certain parts of the beam to prevent blinding oncoming traffic, adaptive cruise control and an upgraded sound system.

Even previous-generation models come with four-zone climate control, keyless start, heated seats and all-around parking sensors.

Where the A6 S line sits in the Audi range

S line has always been a high-spec version of any Audi, but more recently, trims like Black Edition and Vorsprung have offered an even more premium experience.

Below S line is the current entry-level trim, Sport, which is very well equipped and offers everything you need.

If you’ve got your eye on older models, entry-level SE and SE Executive models are also available, but they’re not short on kit.