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Cazoo
Cars for sale
Audi
A6
Under £20,000
Page 15

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Used Audi A6 cars for sale under £20,000 - Page 15

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48
£17,995£349 (HP)
Audi A6
2020 40 TDI S Line 4dr S Tronic
2020
102,138 miles
Diesel
Auto
JRS Commercials & Cars
ballygawley
16
£1,000 off
£16,995£17,995£336 (HP)
Audi A6
2014 (64) 3.0 BiTDI Quattro 313 Black Edition 5dr Tip Auto
2014
79,350 miles
Diesel
Auto
Ambrose Motor Trading
horsham
18
£1,200
Audi A6
2008 (08) 2.7 TDI SE 5dr
2008
199,980 miles
Diesel
Manual
MOTOR X CARS LTD
great missenden
20
£505 off
£10,995£11,500£210 (HP)
Audi A6
2016 (16) 2.0 TDI ultra Black Edition Estate 190 Diesel S Tronic Euro 6 5Door
Ulez Free/Great Vehicle/Full Service history/
2016
119,000 miles
Diesel
Auto
Premium Cars For Sale LTD
fleet
20
£500 off
£7,495£7,995£136 (HP)
Audi A6
2018 (68) 2.0 TDI Quattro SE Executive 4dr S Tronic
HEATED LEATHER | SATNAV | FULL SERVICE HISTORY
2018
122,000 miles
Diesel
Auto
Deals On Wheels
chesham

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10
£3,495£80 (HP)
Audi A6
2009 (09) 2.7 TDI S Line 5dr
2009
83,762 miles
Diesel
Manual
OXFORD MOTOR SERVICES LIMITED
kidlington
8
£17,999£254 (PCP)
Audi A6
2021 40 TFSI Sport 4dr S Tronic
2021
43,880 miles
Petrol
Auto
WEST LONDON MOTORS LTD
hayes
29
£6,950£191 (HP)
Audi A6
2009 (09) S6 FSI Quattro 5dr Tip Auto
2009
125,000 miles
Petrol
Auto
M40 4x4 Ltd
beaconsfield
21
£8,999£168 (HP)
Audi A6
2015 (15) 2.0 TDI ultra Black Edition Saloon 4dr Diesel S Tronic Euro 6 (s/s) (190 ps
2015
114,444 miles
Diesel
Auto
FMC Swansea Ltd
swansea
35
£6,490£115 (HP)
Audi A6
2024 HPI CLEAR*PETROL HYBRID*ONE OWNER*MOT DUE 21/10/2026*RECENT FULL SERVICE*4
78,210 miles
Hybrid
Manual
WSH CARS LTD
london

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23
£16,499£325 (HP)
Audi A6
2020 (20) 40 TDI Quattro Black Edition 4dr S Tronic
1 OWNER FULLY LOADED SPEC AWESOME CAR
2020
125,000 miles
Diesel
Auto
NJ Vehicle Solutions
bristol
21
£13,295£258 (HP)
Audi A6
2018 (18) Black Edition 1.8 TFSI DSG Auto Petrol Automaic Saloon 4Door
2018
90,908 miles
Petrol
Auto
Albion Vehicle Sales
burgess hill
46
£1,000 off
£11,995£12,995£231 (HP)
Audi A6
2015 3.0 A6 Black Edition TDI Quattro SemiAuto 4WD 5dr
GEARBOX SERVICED | HEATED SEAT
2015
103,635 miles
Diesel
Auto
S.M.T Automotive Ltd
tring
23
£18,500£360 (HP)
Audi A6
2017 AVANT TDI ULTRA S LINE BLACK EDITION 5Door
6 Months6000 Miles Warranty
2017
28,243 miles
Diesel
Auto
Jaggard Brothers Motor Vehicle Engineers Ltd
newmarket
6
£14,490
Audi A6
2019 (19) 40 TDI S Line 4dr S Tronic
STUNNING+F/AUDI/S/H MASSiVE SPEC+New G BOX ECU
2019
133,900 miles
Diesel
Auto
Q-assured Cars
bedford
23
£6,495£115 (HP)
Audi A6
2013 (63) 2.0 TDI Black Edition 4dr Multitronic
BOSE SURROUND SOUND BLACK LEATHER HEATED SEATS
2013
108,000 miles
Diesel
Auto
Exclusive Motors Of GB LTD
uxbridge
11
£1,995
Audi A6
2005 3.2 FSI SE 4Door
2005
123,000 miles
Petrol
Auto
NATIONAL VEHICLE SUPPLIERS LTD
hungerford
17
£1,999
Audi A6
2008 (08) 2.7 TDI Le Mans 4dr 12 Month mot on sale
2008
190,000 miles
Diesel
Manual
Llandarcy Car Sales
neath
12
£18,950£311 (PCP)
Audi A6
2019 40 TDI S Line 4dr S Tronic
2019
74,000 miles
Diesel
Auto
MCautosales
magherafelt
38
£10,995£210 (HP)
Audi A6
2013 (63) 2.0 AVANT TDI BLACK EDITION 5d 175 BHP 5Door
FRONT AND REAR PARKING SENSORS
2013
85,500 miles
Diesel
Auto
Cars4You Edinburgh West
edinburgh
18
£7,495
Audi A6
2016 (66) 2.0 TDI Ultra S Line 4dr S Tronic
2016
148,000 miles
Diesel
Auto
Cardiff Auto Sales
cardiff
17
£1,750
Audi A6
2003 (53) 2.4 SE 4DR MULTITRONIC PETROL ULEZ FREE
LEATHER SEATS, CRUISE CONTROL,
2003
133,000 miles
Petrol
Auto
AUTOMANIA MOTORS GROUP LTD
reading
22
£9,995
Audi A6
2015 (15) 2.0 TDI Ultra S Line 4dr S Tronic AUDI HISTORY | NEW CAMBELT/DSG SERVICE
2015
122,000 miles
Diesel
Auto
Valley Trade centre
high wycombe
19
£14,995£294 (HP)
Audi A6
2019 (07) 40 TDI S Line 4dr S Tronic
2019
103,253 miles
Diesel
Auto
Glasgow Vehicle Sales Ltd
glasgow

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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