Parkers overall rating: 4.3 out of 5 4.3

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

Petrol engines 7.5 - 10.1 mpp
Diesel engines 9.8 - 12.7 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 - 47.1 mpg
Diesel engines 48.7 - 62.8 mpg
  • Strong fuel economy across the range
  • 116d produces an impressive 100g/km of CO2
  • Three-year, unlimited-mile warranty as standard

Unsurprisingly, the BMW badge attracts a premium list price with the cheapest 1 Series significantly more expensive than an entry-level Ford Focus or Volkswagen Golf. However, PCP finance and lease deals are more competitive and could see you driving around in a BMW for the same monthly payment as a ‘less desirable’ badge.

The most economical petrol 1 Series is the three-cylinder 118i, returning a claimed average fuel consumption figure of up to 47.1mpg. This contrasts heavily with the performance M135i xDrive model that manages 35.3mpg – still a reasonable return for a 306hp hot hatchback.

Opt for a diesel model and you can expect up to 61.4mpg from the 116d, 60.1mpg from the 118d and 51.4mpg from the 120d xDrive. As with all fuel economy figures, real world returns vary due to factors such as driving style and the size of wheel fitted to your car.

Is the BMW 1 Series eco-friendly?

Spend your money on the 116d and CO2 emissions come in at as little as 100g/km of CO2, while the 118d isn’t far behind on 108g/km. Meanwhile, the automatic, all-wheel-drive-only 120d xDrive produces 117g/km. For petrol versions, the 118i delivers a minimum of 114g/km of CO2, while the M135i xDrive sees a big increase to 155g/km.

Is the BMW 1 Series reliable?

  • BMW has a good reputation for building reliable cars
  • The 1 Series uses a selection of new mechanical parts
  • A three-year warranty should ease your worries

You shouldn’t have any major issues with the car, yet a three-year, unlimited-mile warranty is included just in case. Although BMW’s current reputation for reliability varies from model to model, the previous generation 1 Series delivered a solid display in customer satisfaction surveys despite a number of recalls.

These included issues over the engine stalling, power steering not performing correctly, leaks from the exhaust gas recirculation unit and the driver’s seat backrest folding unexpectedly. If you’re buying a used 1 Series, ensure that all potential recalls have been addressed by a certified garage.  

Ongoing running costs

Road tax (12 months) £150
Insurance group 17 - 36
How much is it to insure?