This car has been superseded by a newer model, click here to go to the latest Mercedes-Benz A-Class Hatchback review.

Parkers overall rating: 3.2 out of 5 3.2

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

Reliable fuel consumption data for comparison purposes is not available for this model.

Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 38 - 80 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.
  • A 180 d claims an 80.7mpg average
  • Best petrols are rated at 54.3mpg
  • AMG A 45 officially manages 40.9mpg

Although it’s expensive to buy it needn’t cost lots to run a Mercedes-Benz A-Class, providing you do your homework and choose an efficient one.

The least-costly to run is the A 180 d in SE specification, with a claimed average consumption of 80.7mpg and CO2 emissions of just 89g/km.

If you don’t cover the annual mileage to warrant a diesel, then the picture’s not quite as rosy with petrol-sipping A-Classes. Opt for either the A 160 or A 180, again in SE trim but this time with the seven-speed twin-clutch automatic, and average unleaded consumption’s rated at 54.3mpg, with emissions of 121g/km of CO2.

Perhaps the most surprising is the range-topping Mercedes-AMG A 45’s official claim of 40.9mpg when riding on the standard 18-inch alloy wheels, although a real world figure of 30mpg is more likely if you drive it hard. Officially CO2 is rated at 162g/km. Specify the optional 19-inch rims and those figures worsen to 38.7mpg and 171g/km.

  • Cleanest diesel emits just 89g/km of CO2
  • Lowest petrol output is 121g/km
  • AMG A 45 as high as 171g/km on 19s

All of the diesel versions of the Mercedes-Benz A-Class have emissions below 120g/km of CO2, while all the petrol-powered models are higher than that figure.

Best of the lot is the SE specification A 180 d with the manual gearbox, with a CO2 output of just 89g/km, while the best-performing petrols – the A 160 SE and A 180 SE with automatic transmissions – are rated at 121g/km.

The one to avoid if low CO2 is top of your priority list is the Mercedes-AMG A 45 with the optional 19-inch wheel upgrade: expect to pay more in VED car tax courtesy of its 171g/km of CO2.

  • Six recalls since this model’s launch
  • Many components used elsewhere
  • Most owners would buy another one

Mercedes-Benz has a solid reputation for reliability and dependability but the A-Class appears to not live up to the gold standard associated with wearers of the three-pointed star badge.

According to the vehicle inspectorate VOSA, this generation of A-Class has been subjected to six recalls over recent years, covering potential airbag, engine failure, drive shaft failure and cracking high-pressure fuel lines. All of this work should have been carried out to remedy the issues, but it’s always worth checking with a Mercedes dealer to confirm the modifications have been undertaken.

Those maladies aside, the A-Class should have high levels of longevity thanks to its good levels of build quality and because so many of its components are shared across the Mercedes range including engines, gearboxes and underpinnings.

Parkers’ Owners’ Reviews section suggests most A-Class drivers are very happy with their cars and would strongly consider buying another when the time comes to replace it.

Ongoing running costs

Road tax (12 months) £0 - £475
See tax rates for all versions
Insurance group 13 - 36
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