Used Audi A4 cars for sale

Looking to buy a used Audi A4? Get a full car history check

How buying a used car through Carwow works

Find a car

Use Carwow to browse and compare used vehicles, advertised by a network of trusted dealers. You can search by make and model, or apply filters to find the perfect car for you.

Contact the dealer

Once you’ve found a car you’d like to buy, you can contact the dealer to arrange the next steps, whether that’s asking a question or taking it for a test drive.

Buy the car

When you’re happy to buy, you can do so at a fixed price, safe in the knowledge all models sold through carwow are mechanically checked and come with a warranty.

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Used Audi A4 pros and cons

Lovely interior
Alternatives are more fun to drive
Plenty of standard equipment
Automatic gearbox can be a little jerky
Comfortable and quiet to drive
Too many options reserved for top-spec cars

Is a used Audi A4 a good car?

The Audi A4 is an alternative to the likes of the BMW 3 Series, Mercedes C-Class, and Jaguar XE, and it has long appealed to a huge swathe of buyers — from entry-level company car user-choosers to those buying the high-performance S4 and RS4 models — largely thanks to its understated good looks.

The current Audi A4 has been around since 2015 — a long time for any car — but has been regularly updated to keep it feeling fresh, with a major update in 2019 bringing slightly smoother styling and an upgraded infotainment system.

The 2019 update brought along a new 10.0-inch touchscreen infotainment system and smart digital instruments. The whole cabin is generally pretty gorgeous, with high-quality materials and subtle use of fillets of aluminium and brushed stainless steel.

Space is very good, while the boot is quite generous. At 480 litres, it was more than decent for a four-door saloon back in 2015, and if you need more space — or just more versatility — then there’s the gorgeous Avant estate with its 495-litre boot and fold-down back seats.

Increasingly, the A4 came as standard with the seven-speed DSG automatic gearbox (S-Tronic as Audi calls it) but beware how that combines with the 2.0-litre diesel — at low speeds it can be very slow-witted and a bit sluggish.

What to look for when buying a used Audi A4

Watch for clogged diesel particulate filters, and problems with the exhaust gas recirculation valve (part of the turbo). Also make sure that the infotainment system has received all of its updates as it can otherwise be very laggy and awkward to use, and can even brick itself in extreme circumstances.

The A4 has been recalled for problems with airbags and seatbelts, suspension dampers, towing brackets, and issues with collapsing front seats.

The A4 finished a lowly 44th in the Driver Power owner survey’s Top 50 cars to own, with poor marks for reliability, which doesn’t bode well. Audi as a brand didn’t do great either, coming 27th out of 32 makes in the same survey, with 21% of owners reporting faults.

Audi A4 FAQs

Is a used Audi A4 reliable?

The A4’s results in the Driver Power owner survey don’t make for good reading — owners ranked the car 46th out of 50 for reliability. There aren’t any specific weak areas, but problems with diesel turbos and exhaust filters are known of, and the infotainment system certainly seems to be a weak point.

Should I buy a used Audi A4?

Perhaps be wary. The reports on reliability and customer satisfaction aren’t great, and certainly not in keeping with Audi’s brand image. If you can find a good one, though, it’s a solid choice.

What generation Audi A4 is the most reliable?

Arguably the most reliable A4 was the first generation, launched back in the early 1990s, largely because it was so mechanically simple. As the A4 became more and more complex over the years, the problems started to mount up.

Which Audi A4 engine is the best?

If you’re in search of economy, then the 2.0-litre TDI Ultra diesel engine, with its potential for a real-world 60mpg, is hard to beat. Otherwise, try and track down the 3.0-litre V6 TDI S4, with its electric turbochargers — fantastic power and speed, but with 40mpg.

Is the Audi A4 a luxury car?

Strictly speaking no, it's a premium saloon. That said, the A4’s interior is so nicely made, and can be optioned-up with nicer seats and trim, that it can almost count as a luxury car if you find the right one.