(S-Line) Audi A6 used • 566 cars for sale – Compares prices!

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2022) Audi A6 S-Line 204 HP | Super price

Avant 40 TDI S Line 5dr S

Super price

You save £3,805

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2023) Audi A6 S-Line 204 HP | Good price

40 TFSI S Line 4dr S Tronic [Tech

PR22JZ Preston, Lancashire

Good price

You save £2,605

PR22JZ Preston, Lancashire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2022) Audi A6 S-Line 204 HP | Good price

40 TFSI S Line 4dr S Tronic

NW36LT West Hampstead, London

Good price

You save £2,205

NW36LT West Hampstead, London

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 201 HP | Good price

Avant 40 TDI S Line 5dr S

NN55DH Northampton, Northamptonshire

Good price

You save £2,400

NN55DH Northampton, Northamptonshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2022) Audi A6 S-Line 201 HP | Good price

40 TDI S Line 4dr S Tronic

NR70TA Norwich, Norfolk

Good price

You save £1,605

NR70TA Norwich, Norfolk

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2022) Audi A6 S-Line 204 HP | Good price

Avant 40 TDI S Line 5dr S

Good price

You save £2,105

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2022) Audi A6 S-Line 204 HP | Good price

Avant 40 TDI Quattro S Line 5dr S

CT27PX Canterbury, Kent

Good price

You save £1,810

CT27PX Canterbury, Kent

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2023) Audi A6 S-Line 201 HP | Super price

Saloon 40 TFSI S Line 4dr S Tronic

S419AJ Chesterfield, Derbyshire

Super price

You save £3,405

S419AJ Chesterfield, Derbyshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2022) Audi A6 S-Line 204 HP | Good price

40 TDI S Line 4dr S Tronic

E48JA Chingford, London

Good price

You save £2,105

E48JA Chingford, London

Audi A6 40 TDI Black Edition 4dr S Tronic

Featured deals

heycar

£21,800

Fair price

You save £400

FK78HQ Whins of Milton

204 HP (150 kW) - 48.7 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£24,185

Good price

You save £1,915

DN364RJ Grimsby, Lincolnshire

201 HP (147 kW)

Carwow

Audi A6 -50 TFSI e 17.9kWh Quattro S Line 4dr Tronic

£22,350

Good price

You save £1,450

N111GN Barnet, London

28 g CO2/km comb. - 299 HP (219 kW) - 1.3 Mpg

Carwow

Audi A6 Saloon 2022 | 2.0 TFSI 40 Sport S Tronic Euro 6 (s/s) 4dr

£20,100

Good price

You save £1,400

WS111SL, Staffordshire

163 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI Quattro S Line 5dr

Super price

You save £3,401

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Good price

-Avant 40 TDI S Line 5dr Troni

PE29FT, Cambridgeshire

Good price

You save £1,651

PE29FT, Cambridgeshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 286 HP | Super price

-Avant 50 TDI Quattro S Line 5dr

Super price

You save £5,401

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2018) Audi A6 S-Line 190 HP | Super price

-Avant 2.0 TDI Quattro S Line 5dr

PE134AX, Cambridgeshire

Super price

You save £2,901

PE134AX, Cambridgeshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI S Line 5dr Troni

Super price

You save £3,201

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2014) Audi A6 S-Line 190 HP | Good price

-2.0 TDI Ultra S Line 4dr

Good price

You save £1,200

TW46BH, London

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2025) Audi A6 S-Line 204 HP | Good price

-Avant 40 TFSI S Line 5dr

MK429XE Huntingdon, Bedfordshire

Good price

You save £1,833

MK429XE Huntingdon, Bedfordshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Good price

-40 TDI S Line 4dr Tronic

PE216QX, Lincolnshire

Good price

You save £1,210

PE216QX, Lincolnshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 286 HP | Super price

-50 TDI Quattro S Line 4dr Tip

CB223AY Huntingdon, Cambridgeshire

Super price

You save £4,600

CB223AY Huntingdon, Cambridgeshire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI S Line 5dr Troni

PE46ZL, Cambridgeshire

Super price

You save £3,330

PE46ZL, Cambridgeshire

Audi A6 Saloon 40 TFSI Sport 4dr S Tronic

Featured deals

Carwow

£20,599

Super price

You save £3,801

WA89WZ, Cheshire

163 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

Carwow

Audi A6 -Avant 40 TDI Black Edition 5dr S Tronic

£22,950

Fair price

Estimated price £22,268

SS41LQ, Essex

154 g CO2/km comb. - 204 HP (150 kW) - 5.9 Mpg

Carwow

Audi A6 -40 TFSI Sport 4dr S Tronic

£23,755

Fair price

You save £945

BB13NU Blackburn, Lancashire

163 g CO2/km comb. - 204 HP (150 kW) - 7.1 Mpg

Carwow

Audi A6 -Avant 40 TDI Quattro S Line 5dr Tronic

£22,599

Super price

You save £3,401

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

152 g CO2/km comb. - 204 HP (150 kW) - 5.8 Mpg

Used (2018) Audi A6 S-Line 190 HP | Good price

-Avant 2.0 TDI Ultra S Line 5dr

Good price

You save £1,201

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2023) Audi A6 S-Line 299 HP | Good price

-50 TFSI e 17.9kWh Quattro S Line

LE103DJ Hinckley, Leicestershire

Good price

You save £1,905

LE103DJ Hinckley, Leicestershire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2025) Audi A6 S-Line 204 HP | Good price

-Avant 40 TFSI S Line 5dr

BB126EH Burnley, Lancashire

Good price

You save £2,601

BB126EH Burnley, Lancashire

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI S Line 5dr Troni

N111GN Barnet, London

Super price

You save £3,400

N111GN Barnet, London

A trusted partner of AutoUncle with agreed terms and a signed contract, ensuring you're dealing with a legitimate business.

Used (2021) Audi A6 S-Line 204 HP | Super price

-Avant 40 TDI S Line 5dr Troni

Super price

You save £3,701