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Parkers overall rating: 4.2 out of 5 4.2
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Running costs

3.9 out of 5 3.9
  • Diesels offer impressively frugal economy
  • M Performance models will be costly
  • Servicing and insurance could also be pricey 

The X4 may well be a large SUV, but fuel costs should be manageable if you buy a diesel and don’t thrash the car. The higher-performance M models won’t return as impressive fuel economy, however.

Diesel BMW X4 running costs

Go for the entry-level xDrive 20d for the most fuel-efficient powertrain on offer. The 2.0-litre diesel engine returns up to 52.3mpg claimed fuel economy on the combined cycle. It shouldn’t be too difficult to achieve this with a gentle right foot.

Next up is the xDrive 30d, which will return up to 47.9mpg, according to BMW. At the pinnacle of the diesel X4 line-up, the M40d returns up to 44.1mpg, but you might not see this figure if you spend most of your time making the most of the performance on tap.

Petrol BMW X4 running costs

Fuel economy figures for the X4 M40i stand at 31.4mpg, making it by far the least economical engine in the line-up. But at least you should have some fun using all that fuel up.

Servicing and maintaining your X4

Despite the reasonable fuel costs for most X4 models, it’s likely to cost quite a bit to service and maintain, but servicing packages will be available as in other BMW models.

Similarly, insurance will likely prove costly for some, as the X4 is a desirable and powerful SUV. 

Estimated fuel cost per year

Fuel type Pence per litre Estimated cost per year *
Diesel 131p £1,145 - £1,353 *

* The estimated fuel cost figure is based on an annual mileage of 10,000 miles and is a guide to how much this model will cost in fuel each year. It's calculated using the model's average MPG (calculated from both town centre and motorway driving) and the average fuel price from around the country. Actual fuel costs will vary based on driving style and road conditions.

Ongoing running costs

Servicing period
Warranty Three years/60,000 miles
Road tax (12 months) £450
Insurance group 32 - 45
How much is it to insure?

Vehicle excise duty (VED) varies according to the CO2 emissions and the fuel type of the vehicle. For cars registered before 01 March 2001 it is based on engine size. For cars registered on or after 01 March 2001 the VED or road tax is based on the car's CO2 emissions.

Green credentials

3.8 out of 5 3.8

The X4’s powerful engines and xDrive all-wheel drive system means there is no low-CO2 version like you might find in smaller SUVs.

The lowest-emitter is the xDrive 20d, producing 142g/km of CO2, while the xDrive 30d produces slightly more at 156g/km. The M40d produces 170g/km, while the M40i petrol emits 209g/km, making it the most expensive when it comes to tax.  

Highest and lowest CO2 emissions

Engine CO2 emissions Road tax (12 months)
2.0d Diesel 142 g/km (Min) £450
3.0i Petrol 205 g/km (Max) £450

Reliability

4 out of 5 4.0
  • BMW has a strong reliability record
  • Latest X4 feels solidly put together
  • Shouldn’t be too much to be concerned about

During its short life cycle, the previous BMW X4 was only recalled once, but the new X4 is based on the latest X3 which uses plenty of new parts and components.

The good news is that the new car hasn’t been recalled since its launch in 2017, so things bode well for the X4.

The engines can be found in many other BMW models, so everything should be proven and trustworthy. If anything does happen, BMW’s three-year warranty should keep you covered. 

Car checklist problem points

Body No problems reported.
Engine / gearbox No problems reported.
Other No problems reported.

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