Used Audi A6 Cars for Sale | AA Cars

Representative example

Borrowing £10,000 at a representative APR of 12.4%, annual interest rate (fixed) 12.4%, 59 monthly payments of £221.08 followed by 1 payment of £231.08, total cost of credit is £3,274.80*, total amount payable is £13,274.80.

1 - 20 of 940 Cars for sale

Sort by

Add your postcode for more accurate results.

Save this search

Read our helpful guide to second hand Audi A6.

Audi A6 TDI QUATTRO SE

Audi A6 TDI QUATTRO SE

£5,995

London

2014
•
127,692 miles
•
Diesel
•
Automatic

Audi A6 Saloon TFSI QUATTRO S LINE BLACK EDITION

Audi A6 TFSI QUATTRO S LINE BLACK EDITION

£30,200

London

2023
•
31,217 miles
•
Petrol
•
Semi auto

AUDI A6 2.0 A6 Sport 40 TFSI MHEV Semi-Auto 4dr

Audi A6 2.0 A6 Sport 40 TFSI MHEV Semi-Auto 4dr

£20,570 + VAT

London

2021
•
19,912 miles
•
Petrol
•
Automatic

Audi A6 Avant 45 TFSI 265 Quattro Black Edition 5dr S Tronic

Audi A6 45 TFSI 265 Quattro Black Edition 5dr S Tronic

£27,850

London

2020
•
41,412 miles
•
Petrol
•
Semiauto

Audi A6 50 TFSI e Quattro Sport 4dr S Tronic

Audi A6 50 TFSI e Quattro Sport 4dr S Tronic

£40,890

London

2024
•
4,201 miles
•
Hybrid
•
Semiauto

Audi A6 Avant 50 TFSI e 17.9kWh Qtro Black Ed 5dr S Tronic [C+S]

Audi A6 50 TFSI e 17.9kWh Qtro Black Ed 5dr S Tronic [C+S]

£46,510

London

2024
•
1,544 miles
•
Hybrid
•
Semiauto

Audi A6 Avant 45 TFSI Quattro S Line 5dr S Tronic

Audi A6 45 TFSI Quattro S Line 5dr S Tronic

£54,870

London

2024
•
3,991 miles
•
Petrol
•
Semiauto

Audi A6 Saloon RS6 AVANT TFSI V8 QUATTRO

Audi A6 RS6 AVANT TFSI V8 QUATTRO

£33,000

London

2015
•
78,800 miles
•
Petrol
•
Automatic

AUDI A6 AVANT 2.0 TDI ultra S line Estate 5dr Diesel S Tronic Euro 6 (s/s) (19

Audi A6 2.0 TDI ultra S line Estate 5dr Diesel S Tronic Euro 6 (s/s) (19

£10,950

London

2015
•
107,347 miles
•
Diesel
•
Automatic

AUDI A6 AVANT 2.0 TDI ultra SE Executive Estate 5dr Diesel S Tronic Euro 6 (s/

Audi A6 2.0 TDI ultra SE Executive Estate 5dr Diesel S Tronic Euro 6 (s/

£12,750

London

2017
•
82,565 miles
•
Diesel
•
Automatic

AUDI A6 AVANT 2.0 TDI S line Estate 5dr Diesel S Tronic quattro Euro 6 (s/s) (

Audi A6 2.0 TDI S line Estate 5dr Diesel S Tronic quattro Euro 6 (s/s) (

£16,975

London

2018
•
57,310 miles
•
Diesel
•
Automatic

Audi A6 Avant 2.8 QUATTRO ESTATE

Audi A6 2.8 QUATTRO ESTATE

£10,990

London

2012
•
53,000 miles
•
Petrol
•
Automatic

Audi A6 Avant 2.8 V6 QUATTRO AUTO

Audi A6 2.8 V6 QUATTRO AUTO

£10,990

London

2012
•
56,000 miles
•
Petrol
•
Automatic

Audi A6 Avant 2.8 quattro petrol

Audi A6 2.8 quattro petrol

£12,690

London

2013
•
39,000 miles
•
Petrol
•
Automatic

Audi A6 Saloon 2.0 TDI ultra Black Edition S Tronic Euro 6 (s/s) 4dr

Audi A6 2.0 TDI ultra Black Edition S Tronic Euro 6 (s/s) 4dr

£11,610

Wembley

2016
•
89,000 miles
•
Diesel
•
Automatic

Audi A6 Avant 3.0 TDI V6 SE S Tronic quattro Euro 5 (s/s) 5dr

Audi A6 3.0 TDI V6 SE S Tronic quattro Euro 5 (s/s) 5dr

£11,111

Beckenham

2011
•
45,000 miles
•
Diesel
•
Automatic

Audi A6 Avant 50 TFSI e Quattro S Line 5dr S Tronic

Audi A6 50 TFSI e Quattro S Line 5dr S Tronic

£41,910

Beckenham

2024
•
3,888 miles
•
Hybrid
•
Semiauto

Audi A6 Avant 40 TFSI S Line 5dr S Tronic

Audi A6 40 TFSI S Line 5dr S Tronic

£48,990

Beckenham

2024
•
1,000 miles
•
Petrol
•
Semiauto

Audi A6 50 TFSI e Quattro Black Edition 4dr S Tronic

Audi A6 50 TFSI e Quattro Black Edition 4dr S Tronic

£49,990

Beckenham

2024
•
4,501 miles
•
Hybrid
•
Semiauto

Audi A6 50 TFSI e Quattro Black Ed 4dr S Tronic [Tech Pro]

Audi A6 50 TFSI e Quattro Black Ed 4dr S Tronic [Tech Pro]

£40,000

Brentford

2023
•
8,685 miles
•
Hybrid
•
Semiauto

** plus VAT where applicable

Jump to section

About A6
Why buy a used A6?
A6 updates
Which used A6 should I buy?
What should I look for?

Used Audi A6

AA Cars works closely with thousands of UK used car dealers to bring you one of the largest selections of Audi A6 cars on the market. You can also browse Audi dealers to find a second hand car close to you today. All used Audi A6 on the AA Cars website are eligible for exclusive breakdown offers, including free Basic Breakdown Cover if the vehicle is for personal use only.

Expert Opinion

Although not market leading (it directly competes with two other German behemoths of car manufacturing), the A6 is a head turning choice in a class full of head turners. Bearing the Audi proviso for impeccable interiors, the A6 comes equipped with technology both incredibly sophisticated yet simple to use (Audi MMI, sat nav and a number of optional driver assist functions), while cabin size nears that of the class above it. The 2.0 TDi engine satisfies the need for power and efficiency, but for the more speed obsessed the performance of the 3.0 BiTDi V6 (0-62mph in 5.1 seconds), may prove more alluring.

Audi A6 - Review

4.5/5

62 Audi A6 reviews

About Audi A6

The big brother to the A4 and A5, the Audi A6 can sometimes struggle to be noticed in a market so heavily dominated by its German competitors. Yet the Audi A6 is a classy, solid and luxurious car which manages to hold its own against its more popular rivals.

Like all Audis, desirability is one its leading attractions, and in the A6, this is brought about from a good, refined ride, luxurious interior and surprisingly economic efficiency

Why buy a used A6?

Although the first Audi A6 was first brought onto the market in 1994, it was in fact a rebadged Audi 100, and so has its original roots in 1968. Launched to satisfy the need for a mid-sized executive vehicle, it signalled the start of Audi's success in the modern era.

Like BMW's 5 Series and the Mercedes' E Class, the A6 is a sizeable and luxurious car which offers a refined ride and comfortable cabin. As in many Audis, the latter of these traits stands out as class leading, bringing sophistication and luxury to their cars. Cabin space is surprisingly vast, matching (and in many cases surpassing), that of its competitors. Opt for the Avant estate trim and you are gifted with 565 litres of boot space with the seats up, and 1,680 folded down. Quality finishings and good equipment add to the sense of luxury in the cabin, while the Audi MMI system makes it both technologically modern as well as classically comfortable.

Predictably, the 2.0 diesel is the top seller, matching performance and economy for the best results within the A6 range, yet not quite matching the market leaders. But, where previous Audis might have never hoped to match the BMW's or Mercedes' performance, the most recent A6 comes very close. In the 2011, fourth generation car, 0-60 takes 8.9 seconds, but upgrading to the 3.0 litre BiTDi V6 diesel brings this down to a quick 5.1 seconds.

Returns are especially good for a car of its size, and is at its most efficient in the 2.0 TDi - the official figures promise 57.6mpg and 129g/km CO2 emissions. While impressive, these still fall slightly behind the class leaders, such as the Efficient Dynamic fitted BMW 5 Series.

Ride and handling are both good, especially the former, which with a revised suspension system in the newest generation puts it at the very top of its class. Being part of a market with such importance placed on being able to drive comfortably for long periods of time, having one of the best rides in its class is no mean feat. Luckily there is still a good level of grip, balance and spirit which gives it a lively drive, should you want to put a bit more in.

A strong performer in all categories, the Audi A6 is a competent mid-sized executive, which does well to compete with its rivals, yet doesn't always match up to them. The newest generation is a considerable step up in terms of quality and comfort however, and while A6s have always been good to look at, they are now, more than ever, good to drive too.

A6 updates

Audi A6

The first Audi A6 was released in 1994, but it has it roots back in 1968, when the mid-sized Audi 100 was first introduced.

Here is a short history of the Audi A6's life, starting right back in 1968.

The first Audi mid-sized executive car was released in 1968 and badged as the Audi 100. In 1994 this car was revised for its fourth generation (C4), renamed the A6, and introduced in 1994.
The second generation A6 (C5) was released in 1997, and was the first to be built on the Volkswagen Group C5 platform. This model was a considerable step up in quality.
2002 saw the A6 receive a facelift, revising the headlight and grille designs, as well as the exhaust and some body changes.
In 2004 a new generation, the C6 Typ 4F, was released, featuring a longer body and the Audi Multi Media Interface (MMI), a system which controlled the entertainment, climate control and other car settings such as suspension configurations.
In 2005 the Audi A6 was named World Car of the Year.
The fourth generation C7 A6 was introduced in 2011, and was heavily influenced by its more upmarket sibling the A8 in terms of looks, but shares an interior, platform and powertrain with the A7.
An A6 hybrid model was released in 2012, featuring a 2 litre TFSI engine and a 45 PS electric one.

Which used A6 should I buy?

The full A6 range features some of the best interiors in its class, but with four generations and a number of models, there are still plenty of options to choose from. Here are the key models and their features.

Audi A6 SE

Start/stop system, 17" 10-spoke alloy wheels, electro-magnetic parking brake, Audi driver select, Driver's Information System, cruise control, light and rain sensor, Audi parking sensor, electronic stability control, front, side and curtain airbags, ISOFIX anchorage points, MMI Radio Plus, Audi sound system with AUX and Bluetooth connectivity, dual-zone climate control, auto-dimming rear-view mirror, electronically adjustable and heated door mirrors.

Audi A6 S Line

S Line

Start/stop system, 18" five-twin-spoke alloy wheels, sports suspension, electro-magnetic parking brake, Audi driver select, Driver's Information System, cruise control, light and rain sensor, Audi parking sensor, electronic stability control, front, side and curtain airbags, ISOFIX anchorage points, MMI Radio Plus, Audi sound system with AUX and Bluetooth connectivity, dual-zone climate control, auto-dimming rear-view mirror, S line badges, electronically adjustable and heated door mirrors.

Audi A6 Black Edition

Black Edition

Start/stop system, 20" 'five-arm Rotor' titanium-look alloy wheels, sports suspension, electro-magnetic parking brake, Audi driver select, Driver's Information System, cruise control, light and rain sensor, Audi parking sensor, electronic stability control, front, side and curtain airbags, ISOFIX anchorage points, Audi Music Interface with DAB radio and BOSE surround sound, dual-zone climate control, auto-dimming rear-rview mirror, Black styling package, electronically adjustable and heated door mirrors.

Audi A6 Hybrid

Hybrid

Start/stop system, 17" '10-arm Turbine' alloy wheels, electro-magnetic parking brake, Audi driver select, Driver's Information System, cruise control, light and rain sensor, four-zone air conditioning, Audi parking sensor, electronic stability control, front, side and curtain airbags, side and tilt sunroof, Hybrid badge, ISOFIX anchorage points, MMI Radio Plus, Audi sound system with AUX and Bluetooth connectivity, auto-dimming rear-view mirror, electronically adjustable and heated door mirrors.

Audi A6 S6

Audi cylinder-on-demand technology, active noise cancellation system, start/stop system, 19" 'S-parallel spoke' alloy wheels, S Sports adaptive air suspension, electro-magnetic parking brake, Audi driver select, Driver's Information System, cruise control, light and rain sensor, four-zone air conditioning, Audi parking sensor, electronic stability control, front, side and curtain airbags, ISOFIX anchorage points, MMI Radio Plus, Audi sound system with AUX and Bluetooth connectivity, auto-dimming rear-view mirror, S6 design features, S model enhanced braking system, electronically adjustable and heated door mirrors.

What should I look for when buying a used A6?

Have a look over the exterior of the car for any signs of rust, corrosion or mismatched panels, which could be a sign of repair work or previous damage.
Check that the cam belt has been changed on Audis with substantial mileage. Audis no longer issue recommended cam belt changing intervals, but some dealers recommend replacing this after just 40,000 miles.
When starting the car, check that the engine management light comes on in the dashboard, but soon switches off. If the light stays on it could mean that the ignition coil pack is faulty - something more common on post-2001 cars.
On manual transmission cars, if there is a whining noise coming from the gear level when changing gear, this could mean that the release bearings need to be replaced.
Some Audis have reported problems with electric windows. Test these to make sure that these are in working order - if they are slow to open or sticky it could mean that the regulator is close to failing.
When driving over any bumps or small holes, listen for squeaks or creaks coming from the suspension. This could mean that the suspension arm or ball might need to be replaced.

More Used Audi Cars to choose from

Audi Dealers

More Used Audi A6 Cars by Trim

More Used Audi A6 Cars by Colour