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AudiA4 (2015-2025)

Large
Petrol/Diesel/Mild hybrid
Used only

£9,406Typical price

Test score

where to buy or sell

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The fifth-generation Audi A4 is larger yet more efficient than before, and is packed with impressive new kit. It's always been a popular choice in the premium large saloon market, but has often lagged behind rivals in terms of its driving experience - the model's predominantly front-wheel-drive layout being less engaging from behind the wheel than the rear-driven Mercedes C-Class and BMW 3 Series. Read our full review to find out if its faultless build quality and focus on technology is enough to give it the edge.

pros

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cons

What's included?

What is it?
What's it great at?
What's it like to drive?
How reliable is the Audi A4 (2015 to present)?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Is there anything I should look out for?
Should I buy it?

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KEY TEST RESULTS
Comfort and practicality
Model reliability 0-4 years
Brand reliability 0-4 years

Feb 2025Last checked by Which?
Mar 2016First reviewed by Which?
Sept 2015Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test cars

6 Jun 2025

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

How we test ease of driving

To find out how easy a car is to drive, we assess cars across a number of areas from visibility and handling to the layout of the cabin and how smoothly the engine delivers its power.

Performance

Overall
In-gear acceleration
Brakes

How we test performance

We test braking distances and whether the effectiveness of the brakes fade with repeat use. Performance is based on in-gear acceleration.

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Seat space
Boot space (large cars, SUVs and MPVs)

How we test comfort and practicality

Comfort and practicality includes how easy it is, or not, to get in and out of the car and the maximum height of occupants. We also measure road, wind and engine noise and assess how well the car deals with bumps from large potholes to jittery surfaces like cobble stones.

Euro NCAP

How we test euro ncap

Any car that receives a rating of two stars or less from Euro NCAP is made a Don't Buy. Any car that receives three stars can't be a Best Buy. If a car has been available for more than four years and has not been tested by Euro NCAP, it cannot be a Best Buy.

Safety kit

How we test safety kit

We factor in the safety equipment that’s factory-fitted or optional, along with how well the car protects its occupants and pedestrians in the event of an accident. We also test how easy it is to fit a variety of child car seats.

Model reliability 0-4 years

How we test model reliability 0-4 years

How reliable this car is, based on the real life feedback of current owners as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years. A car cannot be a Best Buy if: It's available to buy new and has a 0-4-year model reliability score of two stars or less; or it's only available on the used market and has a 5-9-year model reliability score of two stars or less; or it's only available on the used market and launched less than five years ago and has a 0-4-year model reliability score of two stars of less.

Model reliability 5-9 years

How we test model reliability 5-9 years

Brand reliability 0-4 years

Overall
Electric car reliability
Plug-in hybrid reliability
Petrol reliability
Diesel reliability

How we test brand reliability 0-4 years

Our reliability ratings are based on the feedback from tens of thousands of UK motorists, as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years.

Brand reliability 5-9 years

Overall
Plug-in hybrid reliability
Diesel reliability

Brand reliability 10-15 years

Overall
Petrol reliability
Diesel reliability

General
Class	Large
Luxury	No
Convertible	No
Availability	Used only
Used price	£9,406 - £31,789
Fuel type	Petrol/Diesel/Mild hybrid
Tested fuel efficiency	64.2mpg
Length	4,726mm
Width (excluding wing mirrors)	1,842mm
Width (including wing mirrors)	2,035mm
Height	1,427mm
Driver max height
Second-row passenger max height
Boot space with seats up
Boot space with seats down
Number of seats	5
Folding rear seats	Yes
Isofix attachments	Yes
Turning circle	11.85 m
On sale date	01 September 2015
Lowest pence-per-mile cost	£9.94

Latest tested engine
Engine and trim name	2.0 TDI Ultra Sport
Fuel type	Diesel
Capacity and power	2-litre (190hp)
Transmission	6-speed manual
Driven wheels	Front-wheel-drive (FWD)
Fuel tank capacity	40 litres
Tested fuel economy: City / Out of town / Motorway (mpg)
Tested fuel economy: Combined (mpg)
Cost per mile	9.94p per mile
Cost of filling tank	£56
Monthly fuel cost
Annual fuel cost
NOx level	Very low
CO level	Very low
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	117
Official Euro emission level	Euro 6b
Braked tow load (KG)	1700kg
Unbraked tow load (KG)	750kg
Engine test date	05 February 2016
Test programme	2012-2016

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Suggested searches

AudiA4 (2015-2025)

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pros

cons

What's included?

How we test cars

Ease of driving

Performance

Comfort and practicality

Euro NCAP

Safety kit

Model reliability 0-4 years

Model reliability 5-9 years

Brand reliability 0-4 years

Brand reliability 5-9 years

Brand reliability 10-15 years

How this product's score compares with other new and used cars we've tested

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BMW

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AudiA4 (2015-2025)

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Test results

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