Hertfordshire: Audi A6 used – 27 cars for sale near you

Market overview: Prices range from £8,990 to £74,449 across all listings

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Audi A6 - Avant 2.0 TFSI 204 S line 5dr Tronic

Good price

You save £3,092

SG51RQ Hitchin, Hertfordshire

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

Carwow

Used 2021 Audi A6 S-Line Sedan | £18,850 (Good price)

Audi A6 -40 TDI S Line 4dr Tronic

Good price

You save £1,750

WD33RT Watford, Hertfordshire

142 g CO2/km comb. - 204 HP (150 kW) - 5.4 Mpg

Carwow

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Audi A6 -2.0 TDI Ultra Black Edition 4dr S Tronic

Fair price

Estimated price £7,259

WD33RT Watford, Hertfordshire

114 g CO2/km comb. - 190 HP (139 kW) - 4.4 Mpg

Carwow

New 2025 Mercedes CLA200 Executive Sedan | £31,515 (Good price)

Mercedes CLA200 - Sport Executive 4dr Tip Auto

Good price

You save £1,985

CM232BT, Hertfordshire

133 g CO2/km comb. - 163 HP (119 kW) - 5.9 Mpg

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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

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

- Avant 2.0 TFSI 204 S line 5dr

204 HP (150 kW)

164 g CO2/km comb.

SG51RQ Hitchin, Hertfordshire

Good price

You save £3,092

SG51RQ Hitchin, Hertfordshire

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

204 HP (150 kW)

142 g CO2/km comb.

WD33RT Watford, Hertfordshire

Good price

You save £1,750

WD33RT Watford, Hertfordshire

Used (2019) Audi A6 S-Line 204 HP | Super price

40 TDI S Line 5dr S Tronic

204 HP (150 kW)

SG1 4QT Stevenage, Hertfordshire

Super price

You save £2,920

SG1 4QT Stevenage, Hertfordshire

Visit Motors.co.uk

Used (2019) Audi A6 S-Line 204 HP | Good price

40 TDI S Line 4dr S Tronic

204 HP (150 kW)

WD3 3RT Watford, Hertfordshire

Good price

You save £1,250

WD3 3RT Watford, Hertfordshire

Visit Motors.co.uk

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

Used (2014) Audi A6 Black Edition 190 HP | Fair price

-2.0 TDI Ultra Black Edition 4dr S

190 HP (139 kW)

114 g CO2/km comb.

WD33RT Watford, Hertfordshire

Fair price

Estimated price £7,259

WD33RT Watford, Hertfordshire

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

New (2025) Audi A6 204 HP | Fair price

- 2.0 TDI Quattro 204 Edition 1

204 HP (150 kW)

143 g CO2/km comb.

SG51RQ Hitchin, Hertfordshire

Fair price

You save £1,582

SG51RQ Hitchin, Hertfordshire

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

40 TDI S Line 4dr S Tronic

204 HP (150 kW)

WD19 4HY Watford, Hertfordshire

Fair price

Estimated price £27,624

WD19 4HY Watford, Hertfordshire

Visit Parkers.co.uk

Used (2018) Audi A6 Black Edition | Fair price

2.0 TDI Quattro Black Edition 4dr

CM20 2HE Harlow, Hertfordshire

Fair price

Estimated price £13,512

CM20 2HE Harlow, Hertfordshire

Visit Motors.co.uk

Used (2019) Audi A6 S-Line 204 HP | Fair price

Avant 2.0 TDI 40 S line Estate 5dr

204 HP (150 kW)

AL2 3NY St Albans, Hertfordshire

Fair price

Estimated price £19,212

AL2 3NY St Albans, Hertfordshire

Visit Desperateseller.co.uk

Used (2019) Audi A6 S-Line 286 HP | Fair price

3.0 TDI V6 50 S line Saloon 4dr

286 HP (210 kW)

WD18 8UA Watford, Hertfordshire

Fair price

Estimated price £23,104

WD18 8UA Watford, Hertfordshire

Visit Desperateseller.co.uk

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Used 2023 Mercedes E220 AMG Line Premium Coupe | £25,600 (Good price)

Mercedes E220 -AMG Line Premium 2dr 9G-Tronic

Good price

You save £2,200

EN88DY, Hertfordshire

143 g CO2/km comb. - 194 HP (142 kW) - 5.5 Mpg

Carwow

Used 2022 Mercedes CLA220 AMG Line Premium Plus Sedan | £24,650 (Fair price)

Mercedes CLA220 - AMG Line Premium Plus 4dr Tip Auto

Fair price

Estimated price £24,524

WD33RT Watford, Hertfordshire

133 g CO2/km comb. - 190 HP (139 kW) - 5.1 Mpg

Carwow

Silver Used 2020 Mercedes E220 AMG Line Premium Coupe | £25,650 (Fair price)

Mercedes E220 -AMG Line Premium 2dr 9G-Tronic

Fair price

WD33RT Watford, Hertfordshire

165 g CO2/km comb. - 194 HP (142 kW) - 6.4 Mpg

Carwow

Used 2022 Mercedes CLA180 AMG Line Premium Plus Sedan | £24,625 (Fair price)

Mercedes CLA180 - AMG Line Premium Plus 4dr Tip Auto

Fair price

EN88DY, Hertfordshire

139 g CO2/km comb. - 136 HP (100 kW) - 6.1 Mpg

Used (2012) Audi A6 S-Line 177 HP | Fair price

Saloon 2.0 TDI S line Saloon 4dr

177 HP (130 kW)

132 g CO2/km comb.

WD3 3LS Watford, Hertfordshire

Fair price

WD3 3LS Watford, Hertfordshire

Visit Desperateseller.co.uk

Used (2023) Audi A6 Sport 299 HP | Fair price

2.0 TFSIe 50 Sport Estate 5dr

2.0L Electric/Petrol

299 HP (219 kW)

Hertfordshire, Hertfordshire

Fair price

Estimated price £36,000

Hertfordshire, Hertfordshire

Visit Exchange and Mart

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

Used (2020) Audi A6 S-Line 245 HP | A bit pricey

45 TFSI Quattro S Line 5dr S

245 HP (180 kW)

188 g CO2/km comb.

WD33RT Watford, Hertfordshire

A bit pricey

Estimated price £23,880

WD33RT Watford, Hertfordshire

Used (2025) Audi A6 Black Edition 204 HP | A bit pricey

40 TDI Quattro Black Edition 5dr S

204 HP (150 kW)

160 g CO2/km comb.

AL95JN, Hertfordshire

A bit pricey

Estimated price £38,814

AL95JN, Hertfordshire

Visit Carsite.co.uk

Used (2014) Audi A6 Black Edition | A bit pricey

Saloon (2014/64)2.0 TDI Ultra

AL3 8JL St. Albans, Markyate, Hertfordshire

A bit pricey

Estimated price £8,365

AL3 8JL St. Albans, Markyate, Hertfordshire

Visit Parkers.co.uk

Used (2020) Audi A6 Black Edition 204 HP | A bit pricey

2.0 TDI 40 Black Edition Saloon

204 HP (150 kW)

AL9 7JL, Hertfordshire

A bit pricey

Estimated price £20,661

AL9 7JL, Hertfordshire

Visit Desperateseller.co.uk

Used (2020) Audi A6 Black Edition | A bit pricey

2.0 TFSIe 50 Black Edition Saloon

AL9 7JL, Hertfordshire

A bit pricey

Estimated price £15,980

AL9 7JL, Hertfordshire

Visit Desperateseller.co.uk

Used (2021) Audi A6 S-Line 299 HP | A bit pricey

2.0 TFSIe 50 S line Saloon 4dr

299 HP (219 kW)

AL9 7JL, Hertfordshire

A bit pricey

Estimated price £24,488

AL9 7JL, Hertfordshire

Visit Desperateseller.co.uk

Used (2020) Audi A6 Advanced 600 HP | Expensive

RS6 Avant (2020/20)RS 6 Vorsprung

600 HP (441 kW)

Watford, Hertfordshire

Expensive

Estimated price £67,689

Watford, Hertfordshire

Visit Parkers.co.uk

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

Used (2023) Audi A6 Sport 299 HP | Not evaluated

- Avant 50 TFSI e 17.9kWh Qtro

299 HP (219 kW)

33 g CO2/km comb.

EN88DY, Hertfordshire

EN88DY, Hertfordshire

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Blue Used 2021 Mercedes E220 Estate | £25,050 (Fair price)

Mercedes E220 -Sport 5dr 9G-Tronic

Fair price

Estimated price £24,199

WD33RT Watford, Hertfordshire

148 g CO2/km comb. - 194 HP (142 kW) - 5.6 Mpg

Carwow

Used 2023 BMW 520 M Sport Sedan | £24,100 (Super price)

BMW 520 - 5 Series d MHT M Sport 4dr Step Auto

Super price

You save £3,300

EN88DY, Hertfordshire

128 g CO2/km comb. - 190 HP (139 kW) - 4.9 Mpg

Carwow

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Mercedes CLA180 -AMG Line 4dr Tip Auto

Good price

You save £1,500

WD33RT Watford, Hertfordshire

138 g CO2/km comb. - 136 HP (100 kW) - 5.9 Mpg

Carwow

Used 2019 Mercedes E220 AMG line Cabriolet | £20,300 (Fair price)

Mercedes E220 - AMG Line 2dr 9G-Tronic

Fair price

Estimated price £20,069

WD33RT Watford, Hertfordshire

169 g CO2/km comb. - 194 HP (142 kW) - 5.8 Mpg

Used (2025) Audi A6 S-Line 204 HP | Not evaluated

2.0 TDI Quattro 204 Launch Edition

204 HP (150 kW)

148 g CO2/km comb.

Delivered to you

Delivered to you

Used (2022) Audi A6 Design 600 HP | Not evaluated

RS6 Avant (2022/72)RS 6 Carbon

600 HP (441 kW)

Watford, Hertfordshire

Watford, Hertfordshire

Visit Parkers.co.uk

Used (2023) Audi A6 Sport | Not evaluated

50 TFSI e 17.9kWh Qtro Sport 5dr S

EN8 8DY Waltham Cross, Hertfordshire

EN8 8DY Waltham Cross, Hertfordshire

Visit Motors.co.uk

Used (2025) Audi A6 | Not evaluated

2.0 TDI Quattro 204 Launch Edition

Watford, Hertfordshire

Watford, Hertfordshire

Visit Carsite.co.uk

Used (2025) Audi A6 S-Line 204 HP | Not evaluated

Avant 2.0 TDI Quattro 204 Launch

204 HP (150 kW)

WD258HL Watford, Hertfordshire

WD258HL Watford, Hertfordshire

Visit Honestjohn

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Used 2020 Mercedes E220 AMG line Coupe | £20,950 (Fair price)

Mercedes E220 -4Matic AMG Line 2dr 9G-Tronic

Fair price

Estimated price £19,818

HA36AG, Hertfordshire

168 g CO2/km comb. - 194 HP (142 kW) - 6.0 Mpg

Carwow

Used 2020 Mercedes C200 AMG Line Premium Coupe | £20,300 (Fair price)

Mercedes C200 - AMG Line Premium 2dr 9G-Tronic

Fair price

Estimated price £19,529

EN88DY, Hertfordshire

156 g CO2/km comb. - 184 HP (135 kW) - 6.9 Mpg

Carwow

Used 2022 BMW 320 M Sport Estate | £23,300 (Fair price)

BMW 320 - 3 Series Touring i M Sport 5dr Step Auto

Fair price

You save £1,100

WD33RT Watford, Hertfordshire

153 g CO2/km comb. - 184 HP (135 kW) - 6.6 Mpg

Carwow

Black Used 2019 BMW 520 M Sport Sedan | £18,650 (Good price)

BMW 520 5 Series d M Sport 4dr Auto

Good price

You save £1,950

WD33RT Watford, Hertfordshire

160 g CO2/km comb. - 190 HP (139 kW) - 5.7 Mpg

Showing 1 - 25 of 27 results

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive