Skip advert
Advertisement
In-depth reviews

Audi A4 review - MPG, CO2 and running costs

Efficient but powerful engines help the A4 deliver strong performance without sky-high running costs

Overall Auto Express Rating

4.0 out of 5

MPG, CO2 and Running Costs Rating

4.5 out of 5

Price
£38,285 to £52,595
Find your Audi A4
Offers from our trusted partners on this car and its predecessors...
Or are you looking to sell your car?
Customers got an average £1000 more vs part exchange quotes
Advertisement

​With the introduction of mild-hybrid tech from 2019 onwards, the A4’s petrol and diesel units received a gentle boost in fuel economy. In addition to reducing combustion engine load through regenerative braking, the 12-volt setup enables the stop/start system to engage almost instantly, and from a higher speed than before. When coasting on a motorway, the engine can cut out for up to 40 seconds at a time to reduce fuel usage further.

Advertisement - Article continues below

The Audi A4 is a pricey compact executive saloon. Prices start from around £36,000 – a figure which can soon escalate by adding extras. Just moving up from the entry-level Sport trim to the S-Line will cost you an extra £2,500.

At least everyday running costs should be reasonable, with the diesel models being the low-consumption champs. The 35 TDI is the best performer of the A4 saloon range, with claimed economy of up to 60.1mpg. CO2 emissions for the diesels start from 124g/km for the 35 TDI, rising to 136g/km for the 40 TDI. These rise incrementally when you move up a trim level and also in wheel size.

The petrol engines have closed the gap to the diesels for CO2 emissions, with both the 35 and 40 TFSI emitting 140/km. Again, this figure rises with trim upgrades and bigger wheels. In official tests, the 35 TFSI manages 39.8-45.6mpg.

Insurance groups

The Audi A4 is a desirable compact executive saloon, but it also comes with a raft of safety tech, which helps to balance out insurance costs. The standard lineup ranges between groups 22 and 26, but opting for the high-performance S4 sees this rise to group 41.

You can get personalised car insurance quotes fast with our comparison tool powered by Quotezone...

Depreciation

The Audi A4 saloon and Avant are both predicted to hold onto between 41 and 48 per cent of their initial value after three years and 36,000 miles of driving, depending on your chosen trim and engine. In comparison, the BMW 3 Series is expected to retain between 46 and 54 per cent of its list price.

To get an accurate valuation on a specific model check out our valuation tool...

Skip advert
Advertisement

Which Is Best

Cheapest

  • Name
    35 TFSI Technik 4dr
  • Gearbox type
    Manual
  • Price
    £31,470

Most Economical

  • Name
    30 TDI Technik 4dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £35,220

Fastest

  • Name
    40 TDI 204 Quattro Sport Edition 4dr S Tronic
  • Gearbox type
    Semi-auto
  • Price
    £41,090

Shane is responsible for looking after the day-to-day running of the Auto Express website and social media channels. Prior to joining Auto Express in 2021, he worked as a radio producer and presenter for outlets such as the BBC.

Skip advert
Advertisement

Most Popular

Car Deal of the Day: stylish Peugeot 2008 is a steal at an incredible £142 a month
Peugeot 2008 facelift - full front
News

Car Deal of the Day: stylish Peugeot 2008 is a steal at an incredible £142 a month

Buyers can snap up the Peugeot 2008 small SUV at a bargain price; it’s our Car Deal of the Day for 10 April at just £142 a month
10 Apr 2024
New Ford Focus ST Edition is Ford’s “most complete” hot hatch ever
2024 Ford Focus ST Edition - front tracking
News

New Ford Focus ST Edition is Ford’s “most complete” hot hatch ever

Ford is making big claims about its latest fast family car, which adds exclusive equipment but no more power
10 Apr 2024
Alfa Romeo Milano 2024 preview: walkaround, specs and full details
Alfa Romeo Milano - front 3/4 static
News

Alfa Romeo Milano 2024 preview: walkaround, specs and full details

Alfa Romeo re-entered the small SUV sector with the new Milano offered in pure electric and petrol forms
13 Apr 2024