Review: Audi A4 (2015)


Exceptional quality. Packed with technology. Impressive refinement and comfort. Efficient and economical.

Not quite as sporty to drive as a BMW 3 Series. Options quickly increase the price.

Audi A4 (2015): At A Glance

The Audi A4 may not look radically different but is a huge improvement over its predecessor in every key area. It’s more economical, quieter, more spacious, better equipped and more luxurious than before, so much so that we think it’s better than its chief rivals – the BMW 3 Series, Jaguar XE and Mercedes-Benz C-Class.

Audi claims to have used the luxurious A8 as a benchmark for refinement and it shows. Engine noise is near non-existent and even at motorway speeds there is barely any wind noise. The only sound that is really noticeable on the road is from the tyres, though this is still well-suppressed and is only an issue if larger wheel sizes are specified. The A4 is a very relaxed car to drive over long distances.

There is plenty of technology to make journeys easier, including active cruise control that will match the speed of the car in front, help maintain lane position and will even drive automatically in traffic jams at low speeds. There’s also a range of safety technologies, such as automatic emergency braking, plus convenience tech like Apple CarPlay and Android Auto to make in-car smartphone use safer.

The 150PS 2.0-litre TDI ultra manual is the best choice for many drivers thanks to 99g/km CO2 emissions. For a good blend of performance and economy the 190PS 2.0-litre TDI with seven-speed S Tronic automatic transmission is better, producing just 103g/km with official economy of 72.4mpg.

For those who demand the best refinement and quality, the Audi A4 is hard to beat. It might not be quite as sharp to drive as the BMW 3 Series on a country road, but on motorways it’s quieter and more relaxed, plus it is available with a huge range of technology. The efficient engines and low company car tax rates are the icing on the cake, making the A4 arguably the best small executive car on sale.

What does a Audi A4 (2015) cost?

List Price from £30,395
Buy new from £23,066
Contract hire from £226.34 per month

Audi A4 (2015): What's It Like Inside?

Length 4726 mm
Width 2022–2040 mm
Height 1427 mm
Wheelbase 2820–2825 mm

Full specifications

Even by Audi’s own high standards the A4’s cabin is very impressive. Material quality is excellent and the fit and finish are impeccable. All the switches and dials feel slick and precise, while the instruments and infotainment screen look clear and respond immediately, with no input delay. The A4 really does feel like a top-quality car.

All models have three-zone air conditioning, with separate controls for the rear row, plus there is a rotary controller for the 7-inch colour infotainment system, along with Bluetooth phone connectivity and DAB. All A4 cars also come with cruise control, rear parking sensors, keyless go and emergency brake assistance.

Higher trim levels get more equipment including navigation, an upgraded audio system and sports seats, but the real toys are - in typical Audi style - optional. These range from alternative alloy wheel designs, upholstery finishes and trim details through to advanced technologies like adaptive LED lights, a head-up display, Audi's full-LCD instrument display as seen on the TT, plus a more advanced cruise control system that will drive automatically in slow-moving traffic jams, following the car ahead.

Space for rear-seat passengers is generous, with more leg and head room than in the previous A4 - adult occupants will be more than happy even on longer trips. The boot has a generous load volume of 465 litres, but the A4 is a saloon and is consequently less practical than a hatchback by design. Folding the rear seats expands volume to 965 litres.

Android Auto and Apple CarPlay connectivity is standard and works very well in the A4, replicating most of the functions from a smartphone screen in the car, including Siri voice control or Google Maps, complete with with navigation. For staying connected, or even just for listening to music streaming services like Spotify, both the Apple and Android systems are excellent.

Standard Equipment:

SE is the entry-level trim and includes 17-inch alloy wheels, Audi Drive Select, MMI with 7-inch display, DAB radio, USB input, AUX input, Bluetooth, cloth upholstery, three-zone climate control, steering wheel mounted controls, auto-dimming rear-view mirror, electric boot lid release, LED running lights, rear parking sensors, keyless go, electric parking brake, pre-sense city, light and rain sensor and Isofix points.

Sport trim adds alternate 17-inch alloy wheel design, MMI with navigation, a three month Audi Connect trial, upgraded sound system, Sport front seats, LED lighting pack and a Sport styling pack.

S Line trim adds 18-inch alloy wheels, sport suspension, cloth/leather front seats with electric lumbar support plus S line interior and exterior details.

Child seats that fit a Audi A4 (2015)

Our unique Car Seat Chooser shows you which child car seats will fit this car and which seat positions that they will fit, so that you don't have to check every car seat manufacturer's website for compatibility.

Which car seat will suit you?

What's the Audi A4 (2015) like to drive?

The Audi A4 is available with a broad selection of engines with power outputs ranging from 150PS to 272PS. The engine range is predominantly diesel, but there are three petrol options – a 1.4-litre with 150PS and a 2.0-litre with either 190PS or 152PS.

The diesel selection is wider, with outputs ranging from 150PS for the efficient 2.0-litre ultra to 272PS for the range-topping 3.0 TDI quattro.

The most appealing option for company car drivers is likely to be the 2.0-litre TDI ultra, since it has low emissions of 99g/km and official economy of 74.3mpg, meaning low running costs and 17 per cent BIK. Despite being an entry-level engine it’s quiet and capable, getting from 0-62mph in 9.2 seconds. It has plenty of torque for motorway driving and the slick manual transmission is effortless. 

But the A4 is at its best with an automatic transmission. The 190PS 2.0-litre TDI is available with a seven-speed S Tronic and it is probably the sweet spot in the A4 range, offering capable performance allied to impressive fuel economy. Acceleration from 0-62mph takes 7.7 seconds, while emissions are just 103g/km and official economy is 70.6mpg.

Those who really want some power can opt for the 3.0-litre V6 diesel, which has quattro all-wheel and comes with 218PS or a hefty 272PS. The latter has a colossal 600Nm of torque, making for a very swift 5.3 second 0-62mph sprint time. Yet, despite the seriously impressive performance, claimed emissions are as low as 129g/km if you opt for the smallest wheel size.

Regardless of what’s under the bonnet the new A4 is a seriously quiet, refined car. There is barely any wind or engine noise audible in the cabin - even at motorway speeds - thanks to impressive aerodynamics and good sound-proofing. Audi says the A4 is as quiet on the go as an A8 and it’s believable, but the quietness is somewhat interrupted in cars fitted with larger alloy wheels – these rumble on coarse British tarmac.

The larger wheels also have spoil the ride quality. Over rough, potholed surfaces the A4 feels too firm with optional 19-inch wheels, meaning road imperfections are transmitted into the cabin. This issue is mostly eliminated when smaller wheels are specified though – in fact the A4 rides smoothly with the entry-level 17-inch alloys. If you choose the S line trim level get firmer Sport suspension as standard, this can be deleted.

Through corners the A4 is very well composed, with little body roll and impressive grip levels, especially when quattro all-wheel drive is equipped. Having said that, the A4 really isn’t a car for heroic B-road antics – it’s far more at home on a long motorway cruise, where the excellent refinement and impressive comfort levels really impress.

All cars come with a drive mode selector that allows the driver to choose from various profiles, with steering, throttle response and even air conditioning retuned to deliver a more economical or sharper, sportier drive depending on what you want. It makes a slight but noticeable difference in practice, but most drivers will be happiest with the default setting.

Engine MPG 0-62 CO2
1.4 TFSI 51–53 mpg 8.5–8.7 s 122–131 g/km
1.4 TFSI 150 S tronic 50 mpg 8.5 s 129 g/km
1.4 TFSI S tronic 51–53 mpg 8.5 s 122–126 g/km
2.0 TDI 150 67–71 mpg 8.9–9.2 s 99–119 g/km
2.0 TDI 150 S tronic 66–67 mpg 8.7–9.1 s 101–127 g/km
2.0 TDI 150 Ultra 74 mpg 8.9 s 99 g/km
2.0 TDI 150 Ultra S tronic 72 mpg 8.7 s 101 g/km
2.0 TDI 190 63–64 mpg 7.7 s 102–118 g/km
2.0 TDI 190 quattro S tronic 63–64 mpg 7.2 s 114 g/km
2.0 TDI 190 S tronic 61–67 mpg 7.2–7.7 s 103–121 g/km
2.0 TDI 190 Ultra 69–72 mpg 7.7 s 102 g/km
2.0 TDI 190 Ultra S tronic 67–71 mpg 7.7 s 103 g/km
2.0 TFSI 190 50–50 mpg 7.2 s 127 g/km
2.0 TFSI 190 S tronic 52–55 mpg 7.3 s 116–122 g/km
2.0 TFSI 252 quattro S tronic 44–48 mpg 5.8 s 136–146 g/km
3.0 TDI 218 quattro S tronic 59–63 mpg 6.3–6.6 s 115–127 g/km
3.0 TDI 218 S tronic 64–67 mpg 6.6 s 109 g/km
3.0 TDI 272 quattro tiptronic 54–55 mpg 5.3 s 134–137 g/km
35 TDI S tronic 66 mpg 8.7 s 114–120 g/km
35 TFSI - - 132–137 g/km
35 TFSI S tronic 48–50 mpg 8.9 s 130–135 g/km
40 TDI S tronic 54–66 mpg 7.4–7.7 s 118–138 g/km
40 TFSI S tronic 48–49 mpg 7.3 s 136–137 g/km
45 TFSI S tronic 42 mpg 5.8 s 155 g/km
S4 3.0 TFSI 354 quattro Tiptronic 38–39 mpg 4.7 s 166 g/km

Real MPG average for a Audi A4 (2015)

Real MPG was created following thousands of readers telling us that their cars could not match the official figures.

Real MPG gives real world data from drivers like you to show how much fuel a vehicle really uses.

Average performance


Real MPG

23–67 mpg

MPGs submitted


Diesel or petrol? If you're unsure whether to go for a petrol or diesel (or even an electric model if it's available), then you need our Petrol or Diesel? calculator. It does the maths on petrols, diesels and electric cars to show which is best suited to you.

What have we been asked about the Audi A4 (2015)?

Every day we're asked hundreds of questions from car buyers and owners through Ask Honest John. Our team of experts, including the nation's favourite motoring agony uncle - Honest John himself - answer queries and conudrums ranging from what car to buy to how to care for it as an owner. If you could do with a spot of friendly advice before buying you're next car, get in touch and we'll do what we can to help.

Ask HJ

Is the dealer liable to pay for engine repairs on my two year old Audi A4?

I bought an Audi A4 from an Audi dealer two years ago. It's been serviced by them since purchase, with the last service in December 2017. It recently broke down and had to be towed to the Audi garage. They're asking for £1500 just to take lid off the engine and look inside for some sort of compression problem. The car is worth about £7000 and they can't give me an idea of the final repair cost. I don't think it's worth paying for what looks to be a never-ending bill. Can I resort to litigation?
They aren't liable. Take it elsewhere to an independent Volkswagen specialist. It reads as if the timing belt might have snapped and if that has happened there could be untold damage inside the engine.
Answered by Honest John
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