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Cazoo
Cars for sale
Audi
A6
Under £20,000
Page 14

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Used Audi A6 cars for sale under £20,000 - Page 14

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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

22
£15,950£314 (HP)
Audi A6
2018 40 TDI Sport 4dr S Tronic
2018
89,587 miles
Diesel
Auto
SM Motors NI
ballymoney
39
£10,999£210 (HP)
Audi A6
2015 (15) 2.0 TDI Ultra Black Edition 5dr S Tronic
2015
109,000 miles
Diesel
Auto
Milton Motor Centre
bedford
47
£16,495£325 (HP)
Audi A6
2020 (20) 45 TFSI Quattro Sport 4dr S Tronic
SATNAV +CAMERA + APPLE CARPLAY
2020
62,500 miles
Petrol
Auto
SG MOTORHOUSE LTD
hoddesdon
20
£17,250£334 (HP)
Audi A6
2019 40 TDI Sport 5dr S Tronic
2019
72,730 miles
Diesel
Auto
Rudi Gage Car Sales
ballymoney
9
£10,995£210 (HP)
Audi A6
2015 (65) 3.0 TDI [272] Quattro S Line 5dr S Tronic
2015
128,000 miles
Diesel
Auto
Y S Motors
little kings hill

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12
£11,695£224 (HP)
Audi A6
2015 2.0 TDI Ultra Black Edition 4dr S Tronic
2015
85,000 miles
Diesel
Auto
NATIONAL VEHICLE SUPPLIERS LTD
hungerford
11
£15,950£314 (HP)
Audi A6
2018 40 TDI Sport 4dr S Tronic
2018
85,818 miles
Diesel
Auto
Brian McManus Car Sales Ltd
dungiven
10
£9,950£188 (HP)
Audi A6
2017 2.0 TDI Ultra SE Executive 4dr S Tronic
2017
98,169 miles
Diesel
Auto
Stewart McClelland Cars
portadown
18
£2,950
Audi A6
2012 (12) 2.0 TDI SE 4dr
2012
214,370 miles
Diesel
Manual
MOTOR X CARS LTD
great missenden
41
£2,000
Audi A6
2005 (05) 3.2 FSI Quattro SE 4dr Tip Auto
2005
165,000 miles
Petrol
Auto
Hounslow Cars Ltd
hounslow

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49
£2,000
Audi A6
2006 (06) 2.4 SE 5dr Multitronic
Only 2 owners new tyres
2006
137,000 miles
Petrol
Auto
Hounslow Cars Ltd
hounslow
12
£3,979
Audi A6
2006 (06) 2.7 TDI Quattro S Line 5dr Tip Auto
Great Condition Audi A6 Avant
2006
100,000 miles
Diesel
Auto
Autopoint
garelochhead
19
£12,498
Audi A6
2017 2.0 TDI Ultra SE Executive 4dr
£500 extra on your valuation
2017
56,905 miles
Diesel
Manual
Arnold Clark Motorstore (Motherwell)
motherwell
4.7
35
£11,990£231 (HP)
Audi A6
2025 2.8 SE ESTATE DSG QUATTRO PETROL
36,000 miles
Petrol
Auto
V P I Used Car Sales Limited
london
22
£13,250£257 (HP)
Audi A6
2016 2.0 TDI Ultra Black Edition 4dr S Tronic
2016
90,000 miles
Diesel
Auto
DCX Car Sales
armagh
17
£15,995£315 (HP)
Audi A6
2018 2.0 TDI Quattro S Line 5dr S Tronic
2018
69,000 miles
Diesel
Auto
Lakeside Autos
carryduff
60
£3,899£61 (HP)
Audi A6
2013 (13) 2.0 TDI SE 4dr
2013
129,500 miles
Diesel
Manual
BM CARS WATFORD LTD T/A Chiswell Green Cars
st. albans
16
£6,895£124 (HP)
Audi A6
2015 (15) 2.0 TDI Ultra SE 4dr S Tronic
2015
122,000 miles
Diesel
Auto
Julian Motor Sales
burford
23
£16,975£335 (HP)
Audi A6
2019 40 TDI Sport 5dr S Tronic
2019
76,000 miles
Diesel
Auto
Sean O'Hara Cars
limavady
14
£18,990£357 (PCP)
Audi A6
2020 40 TDI S Line 5dr S Tronic
2020
93,419 miles
Diesel
Auto
Fermanagh Auto Sales
irvinestown
20
£19,995£406 (PCP)
Audi A6
2022 40 TDI Quattro S Line 4dr S Tronic
2022
96,000 miles
Hybrid
Auto
McNulty Motors Ltd
dungannon
13
£2,995
Audi A6
2011 2.0 TDI 170 S Line Special Ed 5dr Multitronic
2011
186,000 miles
Diesel
Auto
NATIONAL VEHICLE SUPPLIERS LTD
hungerford
35
£17,750£344 (HP)
Audi A6
2019 40 TDI S Line 5dr S Tronic
2019
89,730 miles
Diesel
Auto
J26 Car Sales
ballymena
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

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