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Cars for sale
Audi
A6
Under £20,000

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380

Used Audi A6 cars for sale under £20,000

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14
£8,749£163 (HP)
Audi A6
2015 (15) 2.0 TDI Ultra SE 5dr S Tronic
CAMBELT REPLACED/5*REVIEWS
2015
98,300 miles
Diesel
Auto
WY Cars
wakefield
44
£8,671
Audi A6
2016 (16) 2.0 TDI Ultra S Line 5dr S Tronic
(FULL LEATHER+SAT NAV)
2016
129,547 miles
Diesel
Auto
Car Motion
rotherham
77
£3,990
Audi A6
2010 (10) 2.0 TDI 170 S Line Special Ed 5dr
JUST INMORE INFO VERY SOON
2010
143,000 miles
Diesel
Manual
Anglia Autos Ltd
sheffield
26
£15,990£315 (HP)
Audi A6
2019 40 TDI Sport 4dr S Tronic
12 MONTHS BREAKDOWN COVER, 3 MONTHS NATIONWIDE WARRANTY
2019
62,667 miles
Diesel
Auto
AQ CAR SALES LIMITED
rotherham
47
£17,000£329 (HP)
Audi A6
2018 (18) 2.0 TDI Ultra Black Edition 5dr S Tronic
2 OWNER*NAV*PSENSORS*BOSE*FSH
2018
74,627 miles
Diesel
Auto
ADAM G CARS
doncaster

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16
£5,995£105 (HP)
Audi A6
2013 (63) 2.0 TDI Black Edition 4dr Multitronic
Audi A6 Saloon 2.0 TDI Black Edition Saloon 4dr Di
2013
118,000 miles
Diesel
Auto
GW MARKETING LTD
mexborough
37
£8,995£168 (HP)
Audi A6
2014 (14) 3.0 TDI Quattro Black Edition 4dr S Tronic
HIGH SPEC/HISTORY/FINANCE
2014
103,890 miles
Diesel
Auto
A2Z AUTOCOMPLETEZ LTD
wakefield
44
£18,995£282 (PCP)
Audi A6
2021 (21) 50 TFSI e Quattro Sport 4dr S Tronic
FSH/CAM/HEATSEAT/TECHPACK/4WD
2021
66,452 miles
Hybrid
Auto
CSH Performance Ltd
halifax
50
£14,750£289 (HP)
Audi A6
2017 (66) 2.0 TDI Quattro Black Edition 5dr S Tronic
20" ALLOYS+BLUETOOTH+CRUISE
2017
87,582 miles
Diesel
Auto
Driven Of York
tadcaster
61
£9,995
Audi A6
2017 (67) 2.0 TDI Ultra Black Edition 4dr S Tronic
2017
124,045 miles
Diesel
Auto
Harris Motor Group
dewsbury

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14
£8,989
Audi A6
2018 (18) 2.0 TDI Ultra Black Edition 4dr S Tronic
2018
141,000 miles
Diesel
Auto
Motorhub
keighley
35
£18,750
Audi A6
2019 40 TDI S Line 4dr S Tronic
2019
35,925 miles
Diesel
Auto
Evans Halshaw Citroen Sheffield
sheffield
20
£15,995£315 (HP)
Audi A6
2018 (18) 2.0 TDI Ultra Black Edition 5dr S Tronic
STUNNING ,AUDI MAIN DEALER SERVICE HISTORY
2018
81,000 miles
Diesel
Auto
York Car And Commercial LTD
york
9
£19,900
Audi A6
2020 40 TDI Quattro Black Edition 4dr S Tronic
2020
69,514 miles
Diesel
Auto
Evans Halshaw Hyundai Leeds
leeds
34
£6,495
Audi A6
2015 (64) 2.0 TDI Ultra Black Edition 4dr S Tronic
FSH2KEYSTIMING&PUMPLONG MOTAUTOBLACK EDTION
2015
159,840 miles
Diesel
Auto
HUDDERSFIELD CAR SALES
huddersfield
36
£11,990£231 (HP)
Audi A6
2018 (18) 2.0 TDI Ultra Black Edition 5dr S Tronic
2018
124,000 miles
Diesel
Auto
German Motors
leeds
34
£19,995£324 (PCP)
Audi A6
2019 (19) 40 TDI S Line 4dr S Tronic
Virtual cockpit, Reverse camera, Home delivery
2019
38,100 miles
Diesel
Auto
Forge Autohaus
dewsbury
24
£14,795£290 (HP)
Audi A6
2018 (18) 2.0 TDI Quattro Black Edition 5dr S Tronic
2018
98,339 miles
Diesel
Auto
Diamond Motors
leeds
19
£18,998
Audi A6
2019 40 TDI S Line 5dr S Tronic
£500 extra on your valuation
2019
85,109 miles
Diesel
Auto
Arnold Clark Motorstore (Leeds Roseville Road)
leeds
4.7
28
£9,000
Audi A6
2016 (16) 2.0 TDI Ultra S Line 4dr
2016
99,210 miles
Diesel
Manual
JT Car Sales Worksop Ltd
worksop
51
£12,490£241 (HP)
Audi A6
2016 (66) 2.0 TDI Quattro Black Edition 4dr S Tronic
2016
84,363 miles
Diesel
Auto
Motor Gurus
sheffield
12
£12,695
Audi A6
2019 (19) 40 TDI S Line 5dr S Tronic
2 Keys ULEZ Compliant Heated Seats
2019
142,397 miles
Diesel
Auto
Leeds Road Car Sales
west yorkshire
19
£12,345
Audi A6
2015 (04) 2.0 TDI Ultra Black Edition 4dr S Tronic
* SERVICE HISTORY * BOSE *
2015
72,112 miles
Diesel
Auto
Steel City Sport & Prestige
dronfield
40
£13,480£335 (HP)
Audi A6
2016 2.0 TDI Ultra SE Executive 4dr
2016
24,335 miles
Diesel
Manual
Cars2 Bradford Hyundai
bradford

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Audi A6 review

Pros

Incredibly quiet and refined, making it a perfect motorway cruiser
Stunning, high-tech interior that feels genuinely special
Strong and efficient diesel engines are great all-rounders

Cons

Rivals like the BMW 5 Series are more fun to drive
The ride can be a bit firm on sporty S line models
The long options list can make used models vary hugely in spec

Audi A6 summary

4 / 5 review score

Author The Cazoo editorial team

Author: The Cazoo editorial team7th Jan 2026 – 9 min read

Audi A6 review image

380 Used Audi A6 cars for sale under £20,000 | Cazoo