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(S-Line) Audi A6 Used • 127 cars for sale – Compares prices!

Featured deals

heycar

Audi A6 Diesel Avant 40 TDI S Line 5dr S Tronic

£25,380

Fair price

You save £520

CV49BY Coventry, West Midlands

124 g CO2/km comb. - 204 HP (150 kW) - 60.1 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£24,400

Fair price

You save £600

PE45BH Peterborough, Cambridgeshire

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

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£26,049

Fair price

Estimated price £24,846

BB126EH Burnley, Lancashire

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

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,200

Fair price

Estimated price £23,477

PE296WP Huntingdon, Cambridgeshire

201 HP (147 kW)

heycar

Audi A6 40 TDI Sport 4dr S Tronic

£17,930

Good price

You save £1,370

CR52AR Croydon, London

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,285

Fair price

You save £15

IP327YB Bury St Edmunds, Suffolk

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£21,499

Fair price

You save £801

TS183UR Stockton-on-Tees, Durham

201 HP (147 kW)

heycar

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

£24,622

Fair price

Estimated price £24,117

EH114EJ Edinburgh

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£22,990

Good price

You save £2,610

PE1 5PE Peterborough, Cambridgeshire

204 HP (150 kW) - 48.7 Mpg

heycar

Audi A6 SALOON 40 TDI S Line 4dr S Tronic [Tech Pack]

£23,850

Fair price

Estimated price £23,759

RG142AB Newbury, Berkshire

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Quattro S Line 4dr S Tronic

£22,444

Fair price

Estimated price £21,535

HU139PB Hull, East Yorkshire

201 HP (147 kW)

heycar

Audi A6 Avant 50 TDI Quattro S Line 5dr Tip Auto

£22,985

Fair price

You save £815

IV11UA Inverness

282 HP (207 kW)

heycar

Audi A6 Avant 40 TDI S Line 5dr S Tronic

£20,854

Fair price

Estimated price £20,793

WC1E 7DP London, London

201 HP (147 kW)

heycar

Audi A6 Avant 40 TDI Sport 5dr S Tronic

£23,900

Super price

You save £3,200

PE45BH Peterborough, Cambridgeshire

148 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 Avant 40 TDI Quattro Sport 5dr S Tronic

£25,990

Good price

You save £1,610

RH149AZ Horsham, West Sussex

151 g CO2/km comb. - 204 HP (150 kW) - 5.7 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£21,897

Fair price

You save £103

S705SZ Barnsley, South Yorkshire

149 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£18,697

Fair price

Estimated price £18,492

B330JJ Birmingham, West Midlands

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic - 2021 (21)

£23,999

Fair price

You save £401

NW36LT West Hampstead, London

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

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£19,104

Fair price

Estimated price £18,668

GU11RU Guildford, Surrey

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£21,915

Fair price

You save £685

SO317FL Southampton, Hampshire

201 HP (147 kW)

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive

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Dealer

Audi A6 2.0 TDI 40 S line Saloon 4dr Diesel S Tronic Euro 6 (s/s) (204 ps)

Fair price

Audi A6 40 TDI S Line 4dr S Tronic

BT36 4XS Newtownabbey

Fair price

You save £5

BT36 4XS Newtownabbey

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

Fair price

Estimated price £20,746

BT78 5NF Omagh

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

Fair price

Estimated price £19,340

BT25 1NN Dromore

Visit Motors.co.uk

Dealer

Audi A6 3.0 TDI V6 50 S line Saloon 4dr Diesel Tiptronic quattro Euro 6 (s/s) (286 ps)

WD18 8UA Watford, Hertfordshire

Fair price

You save £1,101

WD18 8UA Watford, Hertfordshire

Visit Desperateseller.co.uk

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

DE21 7WA Derby, Derbyshire

Fair price

You save £601

DE21 7WA Derby, Derbyshire

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 4dr S Tronic

ST34JH Stoke-on-Trent, Staffordshire

Fair price

You save £603

ST34JH Stoke-on-Trent, Staffordshire

Visit Motors.co.uk

Dealer

Audi A6 50 TDI Quattro S Line 4dr Tip Auto

SN4 9BS Swindon, Wiltshire

Fair price

Estimated price £21,473

SN4 9BS Swindon, Wiltshire

Visit Motors.co.uk

Dealer

Audi A6 3.0 50 TDI (286ps) S Line Saloon 4d 2967cc quattro Tiptronic

Fair price

Visit Exchange and Mart

Dealer

Audi A6 Avant 2.0 TDI 40 S line Estate 5dr Diesel S Tronic Euro 6 (s/s) (204 ps)

WV14 6BD Bilston, West Midlands

Fair price

You save £705

WV14 6BD Bilston, West Midlands

Visit Parkers.co.uk

Featured deals

heycar

Audi A6 40 TDI Sport 4dr S Tronic

£17,930

Good price

You save £1,370

CR52AR Croydon, London

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,285

Fair price

You save £15

IP327YB Bury St Edmunds, Suffolk

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£21,499

Fair price

You save £801

TS183UR Stockton-on-Tees, Durham

201 HP (147 kW)

heycar

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

£24,622

Fair price

Estimated price £24,117

EH114EJ Edinburgh

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£22,990

Good price

You save £2,610

PE1 5PE Peterborough, Cambridgeshire

204 HP (150 kW) - 48.7 Mpg

heycar

Audi A6 SALOON 40 TDI S Line 4dr S Tronic [Tech Pack]

£23,850

Fair price

Estimated price £23,759

RG142AB Newbury, Berkshire

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Quattro S Line 4dr S Tronic

£22,444

Fair price

Estimated price £21,535

HU139PB Hull, East Yorkshire

201 HP (147 kW)

heycar

Audi A6 Avant 50 TDI Quattro S Line 5dr Tip Auto

£22,985

Fair price

You save £815

IV11UA Inverness

282 HP (207 kW)

heycar

Audi A6 Avant 40 TDI S Line 5dr S Tronic

£20,854

Fair price

Estimated price £20,793

WC1E 7DP London, London

201 HP (147 kW)

heycar

Audi A6 Avant 40 TDI Sport 5dr S Tronic

£23,900

Super price

You save £3,200

PE45BH Peterborough, Cambridgeshire

148 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 Avant 40 TDI Quattro Sport 5dr S Tronic

£25,990

Good price

You save £1,610

RH149AZ Horsham, West Sussex

151 g CO2/km comb. - 204 HP (150 kW) - 5.7 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£21,897

Fair price

You save £103

S705SZ Barnsley, South Yorkshire

149 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£18,697

Fair price

Estimated price £18,492

B330JJ Birmingham, West Midlands

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic - 2021 (21)

£23,999

Fair price

You save £401

NW36LT West Hampstead, London

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

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£19,104

Fair price

Estimated price £18,668

GU11RU Guildford, Surrey

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£21,915

Fair price

You save £685

SO317FL Southampton, Hampshire

201 HP (147 kW)

heycar

Audi A6 Diesel Avant 40 TDI S Line 5dr S Tronic

£25,380

Fair price

You save £520

CV49BY Coventry, West Midlands

124 g CO2/km comb. - 204 HP (150 kW) - 60.1 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£24,400

Fair price

You save £600

PE45BH Peterborough, Cambridgeshire

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

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£26,049

Fair price

Estimated price £24,846

BB126EH Burnley, Lancashire

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

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,200

Fair price

Estimated price £23,477

PE296WP Huntingdon, Cambridgeshire

201 HP (147 kW)

Dealer

Audi A6 2.0 TDI 40 S line Saloon 4dr Diesel S Tronic Euro 6 (s/s) (204 ps)

WA1 2DS warrington, Cheshire

Fair price

You save £310

WA1 2DS warrington, Cheshire

Visit Desperateseller.co.uk

Dealer

Audi A6 Avant 40 TDI S Line 5dr S Tronic

CV6 5QS Coventry, West Midlands

Fair price

You save £1,051

CV6 5QS Coventry, West Midlands

Visit Motors.co.uk

Dealer

Audi A6 Avant 2.0 TDI 40 S line Estate 5dr Diesel S Tronic Euro 6 (s/s) (204 ps)

PE21 6QX Boston, Lincolnshire

Fair price

Estimated price £17,864

PE21 6QX Boston, Lincolnshire

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 4dr S Tronic

DE7 8DQ Ilkeston, Derbyshire

Fair price

You save £405

DE7 8DQ Ilkeston, Derbyshire

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 4dr S Tronic

NR3 2AW Norwich, Norfolk

Fair price

Estimated price £19,800

NR3 2AW Norwich, Norfolk

Fair price

Estimated price £20,915

Delivered to you

Visit Buyacar

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

HD4 5NT Huddersfield, West Yorkshire

Fair price

Estimated price £22,233

HD4 5NT Huddersfield, West Yorkshire

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

SO30 3DS Southampton, Hampshire

Fair price

You save £807

SO30 3DS Southampton, Hampshire

Visit Motors.co.uk

Dealer

Audi A6 Avant 2.0 TDI 40 S line Estate 5dr Diesel S Tronic-2 OWNER CAR-HEATED HALF LEATHE

WA2 8JP Warrington, Cheshire

Fair price

You save £300

WA2 8JP Warrington, Cheshire

Visit Motors.co.uk

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

Fair price

Estimated price £19,564

BT52 1SF Coleraine

Visit Motors.co.uk

Featured deals

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£22,990

Good price

You save £2,610

PE1 5PE Peterborough, Cambridgeshire

204 HP (150 kW) - 48.7 Mpg

heycar

Audi A6 SALOON 40 TDI S Line 4dr S Tronic [Tech Pack]

£23,850

Fair price

Estimated price £23,759

RG142AB Newbury, Berkshire

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Quattro S Line 4dr S Tronic

£22,444

Fair price

Estimated price £21,535

HU139PB Hull, East Yorkshire

201 HP (147 kW)

heycar

Audi A6 Avant 50 TDI Quattro S Line 5dr Tip Auto

£22,985

Fair price

You save £815

IV11UA Inverness

282 HP (207 kW)

heycar

Audi A6 Avant 40 TDI S Line 5dr S Tronic

£20,854

Fair price

Estimated price £20,793

WC1E 7DP London, London

201 HP (147 kW)

heycar

Audi A6 Avant 40 TDI Sport 5dr S Tronic

£23,900

Super price

You save £3,200

PE45BH Peterborough, Cambridgeshire

148 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 Avant 40 TDI Quattro Sport 5dr S Tronic

£25,990

Good price

You save £1,610

RH149AZ Horsham, West Sussex

151 g CO2/km comb. - 204 HP (150 kW) - 5.7 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£21,897

Fair price

You save £103

S705SZ Barnsley, South Yorkshire

149 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£18,697

Fair price

Estimated price £18,492

B330JJ Birmingham, West Midlands

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic - 2021 (21)

£23,999

Fair price

You save £401

NW36LT West Hampstead, London

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

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£19,104

Fair price

Estimated price £18,668

GU11RU Guildford, Surrey

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£21,915

Fair price

You save £685

SO317FL Southampton, Hampshire

201 HP (147 kW)

heycar

Audi A6 Diesel Avant 40 TDI S Line 5dr S Tronic

£25,380

Fair price

You save £520

CV49BY Coventry, West Midlands

124 g CO2/km comb. - 204 HP (150 kW) - 60.1 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£24,400

Fair price

You save £600

PE45BH Peterborough, Cambridgeshire

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

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£26,049

Fair price

Estimated price £24,846

BB126EH Burnley, Lancashire

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

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,200

Fair price

Estimated price £23,477

PE296WP Huntingdon, Cambridgeshire

201 HP (147 kW)

heycar

Audi A6 40 TDI Sport 4dr S Tronic

£17,930

Good price

You save £1,370

CR52AR Croydon, London

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,285

Fair price

You save £15

IP327YB Bury St Edmunds, Suffolk

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£21,499

Fair price

You save £801

TS183UR Stockton-on-Tees, Durham

201 HP (147 kW)

heycar

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

£24,622

Fair price

Estimated price £24,117

EH114EJ Edinburgh

201 HP (147 kW)

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

Fair price

Estimated price £20,784

BT70 2AN Ballygawley

Visit Parkers.co.uk

Dealer

Audi A6 40 TDI S Line 5dr S Tronic

Fair price

Estimated price £17,821

BT45 6EW Magherafelt

Visit Motors.co.uk

Dealer

Audi A6 2.0 S Line 40 TDI S Tronic 4DR Saloon Diesel

S20 3FG Sheffield, South Yorkshire

Fair price

You save £211

S20 3FG Sheffield, South Yorkshire

Visit Parkers.co.uk

Dealer

Audi A6 2.0 TDI 40 S line S Tronic Euro 6 (s/s) 4dr

BH21 3LL Wimborne, Dorset

Fair price

You save £305

BH21 3LL Wimborne, Dorset

Visit Parkers.co.uk

Dealer

Audi A6 Saloon (2019/19)S Line 50 TDI 286PS Quattro Tiptronic auto 4d

BL9 6HH Bury, Manchester

Fair price

You save £914

BL9 6HH Bury, Manchester

Visit Motors.co.uk

Featured deals

heycar

Audi A6 Avant 40 TDI S Line 5dr S Tronic

£20,854

Fair price

Estimated price £20,793

WC1E 7DP London, London

201 HP (147 kW)

heycar

Audi A6 Avant 40 TDI Sport 5dr S Tronic

£23,900

Super price

You save £3,200

PE45BH Peterborough, Cambridgeshire

148 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 Avant 40 TDI Quattro Sport 5dr S Tronic

£25,990

Good price

You save £1,610

RH149AZ Horsham, West Sussex

151 g CO2/km comb. - 204 HP (150 kW) - 5.7 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£21,897

Fair price

You save £103

S705SZ Barnsley, South Yorkshire

149 g CO2/km comb. - 204 HP (150 kW) - 5.6 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£18,697

Fair price

Estimated price £18,492

B330JJ Birmingham, West Midlands

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic - 2021 (21)

£23,999

Fair price

You save £401

NW36LT West Hampstead, London

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

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£19,104

Fair price

Estimated price £18,668

GU11RU Guildford, Surrey

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£21,915

Fair price

You save £685

SO317FL Southampton, Hampshire

201 HP (147 kW)

heycar

Audi A6 Diesel Avant 40 TDI S Line 5dr S Tronic

£25,380

Fair price

You save £520

CV49BY Coventry, West Midlands

124 g CO2/km comb. - 204 HP (150 kW) - 60.1 Mpg

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£24,400

Fair price

You save £600

PE45BH Peterborough, Cambridgeshire

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

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£26,049

Fair price

Estimated price £24,846

BB126EH Burnley, Lancashire

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

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,200

Fair price

Estimated price £23,477

PE296WP Huntingdon, Cambridgeshire

201 HP (147 kW)

heycar

Audi A6 40 TDI Sport 4dr S Tronic

£17,930

Good price

You save £1,370

CR52AR Croydon, London

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Black Edition 4dr S Tronic

£24,285

Fair price

You save £15

IP327YB Bury St Edmunds, Suffolk

201 HP (147 kW)

heycar

Audi A6 40 TDI Quattro Black Edition 4dr S Tronic

£21,499

Fair price

You save £801

TS183UR Stockton-on-Tees, Durham

201 HP (147 kW)

heycar

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

£24,622

Fair price

Estimated price £24,117

EH114EJ Edinburgh

201 HP (147 kW)

heycar

Audi A6 40 TDI S Line 4dr S Tronic

£22,990

Good price

You save £2,610

PE1 5PE Peterborough, Cambridgeshire

204 HP (150 kW) - 48.7 Mpg

heycar

Audi A6 SALOON 40 TDI S Line 4dr S Tronic [Tech Pack]

£23,850

Fair price

Estimated price £23,759

RG142AB Newbury, Berkshire

204 HP (150 kW) - 62.8 Mpg

heycar

Audi A6 40 TDI Quattro S Line 4dr S Tronic

£22,444

Fair price

Estimated price £21,535

HU139PB Hull, East Yorkshire

201 HP (147 kW)

heycar

Audi A6 Avant 50 TDI Quattro S Line 5dr Tip Auto

£22,985

Fair price

You save £815

IV11UA Inverness

282 HP (207 kW)

Price checked by AutoUncle

Super price

Good price

Fair price

A bit pricey

Expensive