Parkers overall rating: 4.5 out of 5 4.5

Miles per pound (mpp) Miles per pound (mpp)

Petrol engines 5.4 - 7.0 mpp
Diesel engines 5.6 - 8.9 mpp
Low figures relate to the least economical version; high to the most economical. Based on WLTP combined fuel economy for versions of this car made since September 2017 only, and typical current fuel or electricity costs.

Fuel economy

Petrol engines 35.3 - 46.3 mpg
Diesel engines 37.7 - 60.1 mpg
  • No headline-grabbing plug-in hybrid versions
  • Diesels expected to be the most efficient models
  • Most of the updated range comes with mild hybrid technology

The majority of the A4 Saloon range features efficiency-boosting mild-hybrid technology, but there's no sign - yet - of an attention-grabbing TFSI e plug-in hybrid version with attractively low Benefit-in-Kind taxation costs.

Diesels, particularly the less powerful ones remain the best choice for real-world fuel efficiency with up to 60.1mpg claimed for the 30 TDI under the tighter WLTP testing method. Note that powerful diesels, especially those with Quattro four-wheel drive, are thirstier. The S4 TDI, for instance claims 39.8mpg - a respectable figure - but driven enthusiastically, that will be nearer 30mpg.

As for petrol models, the 35 TFSI can officially reach a high of 46.3mpg, while the punchier 45 TFSI is as low as 44.8mpg.

Premium-priced cars tend also to carry heftier price tags when it comes to servicing, insurance and parts such as brakes. Plus, many A4s are fitted with large alloy wheels - the rule of thumb here is the bigger the wheel, the more expensive the tyres will be that fit them.

How reliable is the A4?

  • Mixture of tried-and-tested and new engines for the A4
  • Audi generally has a reputable reliability record
  • Some recent Audis have suffered from electrical maladies

Dig back far enough and its history can be traced back to the 1972 Audi 80; 12 million examples later we’d expect Audi A4 Saloon reliability to be fine. After all this is as mainstream as Audi’s models get, so success is crucial to the car.

According to the government's DVSA recall website, this generation of A4 has been subjected to seven recalls, ranging from problems with seats, airbags failing to deploy, loose trim on door panels, cooling problems and a potential fuel leak. The good news if you're buying a used A4 is that all of those problems should have already been rectified - check with a dealer for peace of mind.

The engines are a mix of all-new units and those seen elsewhere in the Volkswagen Group range, with no reported major issues, yet – these ones aren’t affected by the Dieselgate scandal.

Inside the cabin is constructed from solid and hard-wearing materials. Our only additional concern would surround the Virtual Cockpit system and the electrics involved, which saw some early Audi TT models experience occasional problems.

Ongoing running costs

Road tax (12 months) £0 - £490
See tax rates for all versions
Insurance group 19 - 44
How much is it to insure?