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Audi A6 (petrol) • 474 cars with Valuation

Market overview: Petrol Audi A6 (August-2026): There are currently 474 used petrol Audi A6 cars for sale. Prices range from £9,950 to £54,003, with a median price of £25,500. AutoUncle has identified 75 cars as being offered below market price. The typical selling time for a petrol Audi A6 is approximately 17 days, and 54.6% of the listings have recently been reduced in price (Source: AutoUncle market data, August-2026).

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Carwow

Used Audi A6 Sport 204 HP (150 kW) 2021 Black Estate

(2021) Audi A6 Sport 204 HP

Fair price

LE10 3DJ Leicestershire, Leicestershire

168 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 Black Edition 265 HP (194 kW) 2023 Grey Sedan

(2023) Audi A6 Black Edition 265 HP

Fair price

Estimated price £26,361

N16 6DB Greater London, London

179 g CO2/km comb. - 265 HP (194 kW) - 7.8 Mpg

Carwow

Used Audi A6 S-Line 204 HP (150 kW) 2021 Silver Sedan

(2021) Audi A6 S-Line 204 HP

Fair price

ME5 9QG Kent, Kent

163 g CO2/km comb. - 204 HP (150 kW) - 7.2 Mpg

Carwow

Used Audi A6 S-Line 204 HP (150 kW) 2021 Black Sedan

(2021) Audi A6 S-Line 204 HP

Fair price

CW7 Cheshire West And Chester, Cheshire

163 g CO2/km comb. - 204 HP (150 kW) - 39.2 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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-3%

Used (2025) Audi A6 Sport 204 HP | Good price

A6 40 TFSI Sport 5dr S Tronic

Nov 2025
32,354 miles
Trim level: Sport
2.0L Petrol
Estate
Automatic
204 HP (150 kW)
7.1 mpg
Details

Good price

£23,371

£24,211

LE12 Loughborough, Leicestershire

Availability verified

-2%

1 / 4

Used (2021) Audi A6 Sport 204 HP | Good price

Saloon 2021 | 2.0 TFSI 40 Sport S

2021
43,206 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 163 g CO2/km comb.
7.1 mpg
Details

Good price

£16,710

£17,100

S60 5BD Sheffield, South Yorkshire

Availability verified

-5%

1 / 4

Used (2021) Audi A6 Black Edition 204 HP | Good price

Saloon 2022 | 2.0 TFSI 40 Black

2021
40,571 miles
Trim level: Black Edition
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 169 g CO2/km comb.
7.3 mpg
Details

Good price

£21,670

£22,900

LS27 0TS Morley, West Yorkshire

Availability verified

New

1 / 4

Used (2022) Audi A6 Sport 204 HP | Good price

40 TFSI Sport 4dr S Tronic

2022
30,778 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 163 g CO2/km comb.
7.1 mpg
Details

Good price

£18,949

CV6 5QS West Midlands, West Midlands

Availability verified

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Used Audi A6 Black Edition 204 HP (150 kW) 2021 Black Sedan

(2021) Audi A6 Black Edition 204 HP

Good price

You save £1,530

LS27 0TS Morley, West Yorkshire

169 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 Sport 204 HP (150 kW) 2021 Black Estate

(2021) Audi A6 Sport 204 HP

Fair price

Estimated price £20,295

IP25 6HW Watton, Norfolk

168 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 Black Edition 340 HP (250 kW) 2021 Red Sedan

(2021) Audi A6 Black Edition 340 HP

Fair price

DE216BZ Derby, Derbyshire

192 g CO2/km comb. - 340 HP (250 kW) - 8.4 Mpg

Carwow

Used Audi A6 Black Edition 204 HP (150 kW) 2021 Grey Estate

(2021) Audi A6 Black Edition 204 HP

Fair price

Estimated price £21,702

M417TB Urmston, Manchester

176 g CO2/km comb. - 204 HP (150 kW) - 7.7 Mpg

New

1 / 1

New (2026) Audi A6 Sport 204 HP | Super price

- Avant 2.0 TFSI 204 Sport 5dr S

2026
0 miles
Trim level: Sport
2.0L Petrol
Estate
Automatic
204 HP (150 kW)
CO2 emissions: 164 g CO2/km comb.
7.2 mpg
Details

Super price

£49,060

PO35FH Portsmouth, Hampshire

Availability verified

New

New (2026) Audi A6 S-Line 204 HP | Super price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Super price

£48,410

PO35FH Portsmouth, Hampshire

Availability verified

1 / 4

New (2026) Audi A6 S-Line 204 HP | Super price

2027 S Line 2.0 TFSI 204 line 4dr

2026
391 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Super price

£38,690

HP7 9JD Buckinghamshire, Buckinghamshire

Availability verified

-14%

1 / 4

Used (2023) Audi A6 Black Edition 204 HP | Good price

Avant 2023 | 2.0 TFSI 40 Black

2023
17,727 miles
Trim level: Black Edition
2.0L Petrol
Estate
Automatic
204 HP (150 kW)
CO2 emissions: 175 g CO2/km comb.
7.7 mpg
Details

Good price

£27,210

£31,800

SW17 0HB Greater London, London

Availability verified

-3%

1 / 4

Used (2021) Audi A6 Sport 204 HP | Good price

SALOON 40 TFSI Sport 4dr S Tronic

2021
25,404 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 163 g CO2/km comb.
39.2 mpg
Details

Good price

£19,099

£19,699

CW7 Cheshire West And Chester, Cheshire

Availability verified

-4%

1 / 4

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

40 TFSI S Line 4dr S Tronic [Tech

2022
22,111 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 162 g CO2/km comb.
37.7 mpg
Details

Good price

£22,990

£24,000

OL11 2NQ Greater Manchester, Manchester

Availability verified

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Used Audi A6 Black Edition 204 HP (150 kW) 2022 Black Estate

(2022) Audi A6 Black Edition 204 HP

Fair price

Estimated price £23,912

WD3 3RT Croxley Green, Hertfordshire

175 g CO2/km comb. - 204 HP (150 kW) - 7.7 Mpg

Carwow

Used Audi A6 S-Line 204 HP (150 kW) 2025 Sedan

(2025) Audi A6 S-Line 204 HP

Fair price

Estimated price £26,375

166 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 Sport 245 HP (180 kW) 2020 White Estate

(2020) Audi A6 Sport 245 HP

Fair price

Estimated price £20,150

CW7 Cheshire West And Chester, Cheshire

186 g CO2/km comb. - 245 HP (180 kW) - 42.8 Mpg

Carwow

Used Audi A6 Sport 204 HP (150 kW) 2023 Black Estate

(2023) Audi A6 Sport 204 HP

Fair price

ST3 7PG Rough Close, Staffordshire

167 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

New (2026) Audi A6 Sport 204 HP | Good price

- 2.0 TFSI 204 Sport 4dr S

2026
0 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 161 g CO2/km comb.
6.9 mpg
Details

Good price

£48,852

B62 8RD West Midlands, West Midlands

Availability verified

-4%

New (2026) Audi A6 S-Line 204 HP | Good price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Good price

£50,048

£52,137

L5 9XN Merseyside, Merseyside

Availability verified

New (2026) Audi A6 S-Line 204 HP | Good price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Good price

£50,048

£48,919

B78 3JF Staffordshire, Staffordshire

Availability verified

-4%

New (2026) Audi A6 S-Line 204 HP | Good price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Good price

£50,048

£52,137

OL1 2RL Greater Manchester, Manchester

Availability verified

-4%

New (2026) Audi A6 S-Line 204 HP | Good price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Good price

£50,048

£52,137

B62 8RD West Midlands, West Midlands

Availability verified

-4%

New (2026) Audi A6 S-Line 204 HP | Good price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Good price

£50,048

£52,137

WA5 7YD Warrington, Cheshire

Availability verified

-4%

New (2026) Audi A6 S-Line 204 HP | Good price

- 2.0 TFSI 204 S line 4dr

2026
0 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 160 g CO2/km comb.
7.1 mpg
Details

Good price

£50,048

£52,137

MK15 0DQ Milton Keynes, Buckinghamshire

Availability verified

1 / 4

Used (2023) Audi A6 Sport 204 HP | Good price

40 TFSI Sport 4dr S Tronic

2023
27,952 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 162 g CO2/km comb.
40 mpg
Details

Good price

£20,514

NE61 6JN Northumberland, Northumberland

Availability verified

-6%

1 / 4

Used (2023) Audi A6 Black Edition 204 HP | Good price

- Avant 40 TFSI Black Edition 5dr

2023
38,140 miles
Trim level: Black Edition
2.0L Petrol
Estate
Automatic
204 HP (150 kW)
CO2 emissions: 175 g CO2/km comb.
7.7 mpg
Details

Good price

£26,295

£27,995

LE10 3DJ Leicestershire, Leicestershire

Availability verified

New (2026) Audi A6 Sport 204 HP | Good price

- 2.0 TFSI 204 Sport 4dr S

2026
0 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 161 g CO2/km comb.
6.9 mpg
Details

Good price

£48,852

SY1 3GA Shropshire, Shropshire

Availability verified

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Used Audi A6 Black Edition 204 HP (150 kW) 2023 White Sedan

(2023) Audi A6 Black Edition 204 HP

Fair price

N11 1GN Greater London, London

168 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 Sport 204 HP (150 kW) 2023 White Sedan

(2023) Audi A6 Sport 204 HP

Good price

You save £2,186

NE61 6JN Northumberland, Northumberland

162 g CO2/km comb. - 204 HP (150 kW) - 40.0 Mpg

Carwow

Used Audi A6 S-Line 204 HP (150 kW) 2021 Black Estate

(2021) Audi A6 S-Line 204 HP

Fair price

S80 2QD Nottinghamshire, Nottinghamshire

170 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 S-Line 204 HP (150 kW) 2022 Grey Sedan

(2022) Audi A6 S-Line 204 HP

Good price

You save £1,410

OL11 2NQ Greater Manchester, Manchester

162 g CO2/km comb. - 204 HP (150 kW) - 37.7 Mpg

-3%

1 / 1

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

Saloon 40 TFSI S Line 4dr S

2022
37,155 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
37.2 mpg
Details

Super price

£19,150

£19,750

Parkers.co.uk

Derby, Derbyshire

-13%

1 / 3

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

Saloon 2.0 TFSI 40 S line Saloon

2021
37,155 miles
Trim level: S-Line
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
CO2 emissions: 163 g CO2/km comb.
7.2 mpg
Details

Super price

£19,150

£22,050

Motors.co.uk

DE65 5FJ Hilton, Derbyshire

-1%

1 / 4

Used (2023) Audi A6 Black Edition 204 HP | Good price

40 TFSI Black Edition 4dr S Tronic

2023
42,249 miles
Trim level: Black Edition
2.0L Petrol
Sedan
Automatic
204 HP (150 kW)
37.7 mpg
Details

Good price

£23,650

£23,950

Motors.co.uk

DE65 5FJ Hilton, Derbyshire

-1%

1 / 4

Used (2020) Audi A6 Sport 245 HP | Good price

45 TFSI Quattro Sport 4dr S

2020
26,174 miles
Trim level: Sport
2.0L Petrol
Sedan
Automatic
245 HP (180 kW)
34.4 mpg
Details

Good price

£17,250

£17,450

Parkers.co.uk

DE65 5FJ Hilton, Derbyshire

-12%

1 / 4

New (2026) Audi A6 Sport 200 HP | Super price

2.0 TFSI 204 Sport 5dr S Troni

2026
988 miles
Trim level: Sport
2.0L Petrol
Estate
Automatic
200 HP (147 kW)
6.8 mpg
Details

Super price

£35,900

£40,900

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Used Audi A6 S-Line 204 HP (150 kW) 2023 Grey Estate

(2023) Audi A6 S-Line 204 HP

Fair price

Estimated price £24,060

CW7 Cheshire West And Chester, Cheshire

169 g CO2/km comb. - 204 HP (150 kW) - 7.3 Mpg

Carwow

Used Audi A6 Black Edition 204 HP (150 kW) 2023 Black Estate

(2023) Audi A6 Black Edition 204 HP

Fair price

IP25 6HW Watton, Norfolk

175 g CO2/km comb. - 204 HP (150 kW) - 7.7 Mpg

Carwow

Used Audi A6 S-Line 245 HP (180 kW) 2020 Grey Sedan

(2020) Audi A6 S-Line 245 HP

Fair price

PE1 5XL Peterborough, Cambridgeshire

183 g CO2/km comb. - 245 HP (180 kW) - 8.2 Mpg

Carwow

Used Audi A6 Black Edition 204 HP (150 kW) 2023 Black Estate

(2023) Audi A6 Black Edition 204 HP

Good price

You save £1,405

LE10 3DJ Leicestershire, Leicestershire

175 g CO2/km comb. - 204 HP (150 kW) - 7.7 Mpg

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