How it works
Used Cars
New Cars
Latest News
Used Car
New Car
Make & Model
BRAND
All Brands
Acura
Alfa Romeo
Am General
Aston Martin
Audi
BMW
Bentley
Bugatti
Buick
Cadillac
Chevrolet
Chrysler
Daewoo
Dodge
Ferrari
Fiat
Fisker
Ford
Freightliner
GMC
Genesis
Honda
Hummer
Hyundai
Ineos
Infiniti
Isuzu
Jaguar
Jeep
Karma
Kia
Koenigsegg
Lamborghini
Land Rover
Lexus
Lincoln
Lotus
Lucid
Maserati
Maybach
Mazda
Mclaren
Mercedes-Benz
Mercury
Mini
Mitsubishi
Nissan
Oldsmobile
Pagani
Panoz
Plymouth
Polestar
Pontiac
Porsche
RAM
Rivian
Rolls-Royce
Saab
Saturn
Scion
Smart
Subaru
Suzuki
Tesla
Toyota
Vinfast
Volkswagen
Volvo
MODEL
All Models
A3
A3 e-tron
A4
A4 allroad
A5
A6
A6 allroad
A7
A8
Allroad
Q3
Q4 e-tron
Q5
Q6 e-tron
Q7
Q8
Q8 e-tron
R8
RS 3
RS 4
RS 5
RS 6
RS 6 Avant
RS 7
RS Q8
RS e-tron GT
S3
S4
S5
S6
S7
S8
SQ5
SQ6 e-tron
SQ7
SQ8
SQ8 e-tron
TT
TT RS
TTS
e-tron
e-tron GT
e-tron S
Location
Detect Location
RADIUS
Select Radius
10 mi
25 mi
50 mi
75 mi
100 mi
150 mi
200 mi
250 mi
500 mi
Nation Wide
Year
YEAR
Select Year
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2004
2002
2001
2000
1999
Search
Price
Mileage
Fuel Economy
Trim
Transmission
Engine
Drivetrain
Body Style
Color
Interior Color
Certified Pre-Owned
Days in Market
Shipping Options
Key Features
Vehicle History
Cylinders
Dealer Rating
Used 2004 Audi A6 for Sale
Suggested Filters
Price:
Under $6K
(6)
$6K - $8K
(1)
$12K - $16K
(1)
Mileage:
29.5K - 47K
(1)
64K - 81K
(1)
115K - 132K
(1)
134.5K - 162K
(1)
162K - 189K
(3)
Trim:
Base
(9)
Key Features:
Alloy Wheels
(9)
Bluetooth
(2)
Cold Weather Package
(2)
Heated Seats
(4)
Leather Seats
(9)
Sunroof/Moonroof
(5)
Color:
BLACK
(2)
BLUE
(1)
BROWN
(1)
GREEN
(1)
SILVER
(3)
WHITE
(1)
Add Location
Save Search
Sort By:
Deal Type
Deal Type
Price - Low to High
Price - High to Low
Mileage - Low to High
Mileage - High to Low
Year - Newest First
Year - Oldest First
Most Recent
Fuel Economy - Low to High
Fuel Economy - High to Low
You may be interested in one of the following
audi A6
Searches:
Clear All Filters
See new, used and certified Pre Owned (CPO)
See all Vehicles
Home
Used Cars
Audi
A6
2004
Other Audi A6 Years
Used 2016 Audi A6 for Sale
Used 2019 Audi A6 for Sale
Used 2014 Audi A6 for Sale
Used 2017 Audi A6 for Sale
Used 2018 Audi A6 for Sale
Used 2015 Audi A6 for Sale
Used 2021 Audi A6 for Sale
Used 2013 Audi A6 for Sale
Used 2012 Audi A6 for Sale
Used 2020 Audi A6 for Sale
Used 2022 Audi A6 for Sale
Used 2011 Audi A6 for Sale
Used 2008 Audi A6 for Sale
Used 2006 Audi A6 for Sale
Used 2009 Audi A6 for Sale
Used 2010 Audi A6 for Sale
Used 1999 Audi A6 for Sale
Used 2005 Audi A6 for Sale
Used 2007 Audi A6 for Sale
Used 2001 Audi A6 for Sale
View More
Other Audi Models
Used Audi Q5 for Sale
Used Audi Q7 for Sale
Used Audi Q3 for Sale
Used Audi A4 for Sale
Used Audi A5 for Sale
Used Audi A3 for Sale
Used Audi Q8 for Sale
Used Audi S5 for Sale
Used Audi SQ5 for Sale
Used Audi Q5 Plug-in Hybrid for Sale
Used Audi Q4 e-tron for Sale
Used Audi A7 for Sale
Used Audi Q6 e-tron for Sale
Used Audi A8 for Sale
Used Audi S3 for Sale
Used Audi Q8 e-tron for Sale
Used Audi S4 for Sale
Used Audi SQ8 for Sale
Used Audi RS 5 for Sale
Used Audi RS 6 Avant for Sale
Used Audi TT for Sale
Used Audi SQ7 for Sale
Used Audi e-tron for Sale
Used Audi R8 for Sale
Used Audi RS Q8 for Sale
Used Audi RS 7 for Sale
Used Audi A4 allroad for Sale
Used Audi S6 for Sale
Used Audi S8 for Sale
Used Audi S7 for Sale
Used Audi A6 allroad for Sale
Used Audi RS 3 for Sale
Used Audi Allroad for Sale
Used Audi TTS for Sale
Used Audi A3 e-tron for Sale
Used Audi RS e-tron GT for Sale
Used Audi e-tron GT for Sale
Used Audi SQ8 e-tron for Sale
Used Audi TT RS for Sale
Used Audi SQ6 e-tron for Sale
Used Audi Q5 Hybrid for Sale
Used Audi e-tron S for Sale
Used Audi RS 4 for Sale
Used Audi RS 6 for Sale
Used Audi A8 Plug-in Hybrid for Sale
View More
×
×
×
×
×