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BMWX4 (2014-2018)

Medium/Large SUV
Petrol/Diesel/Mild hybrid
Used only

£12,661Typical price

Test score

where to buy or sell

The version of this car that we've reviewed might not be available to buy through all listed retailer links. For more options, see our guides on where to buy a car and how to sell a car.

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The BMW X4, launched in 2014, combines coupé-like styling with a compact SUV chassis. Its all-wheel-drive system matches the powerful diesel engines on offer. The high ride height is complimented by a swooping roofline, chiselled bodywork and a 2+2 interior layout. Does this unusual combination really work, though? Find out in our full review.

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cons

What's included?

What is it?
What's it great at?
What's it like to drive?
How reliable are BMW's cars?
How comfortable and spacious is it?
How economical is it to run?
How safe is it?
Is there anything I should look out for?
Should I buy it?

KEY TEST RESULTS
Comfort and practicality
Brand reliability 0-4 years

Jan 2023Last checked by Which?
Jul 2014First reviewed by Which?
Jul 2014Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test cars

6 Jun 2025

Ease of driving

Overall
Visibility
Smoothness of power delivery
Driving stability
Cabin layout

How we test ease of driving

To find out how easy a car is to drive, we assess cars across a number of areas from visibility and handling to the layout of the cabin and how smoothly the engine delivers its power.

Performance

Overall
In-gear acceleration
Brakes

How we test performance

We test braking distances and whether the effectiveness of the brakes fade with repeat use. Performance is based on in-gear acceleration.

Comfort and practicality

Overall
Entry and exit
Seat comfort
Ride quality
Quietness
Seat space
Boot space (large cars, SUVs and MPVs)

How we test comfort and practicality

Comfort and practicality includes how easy it is, or not, to get in and out of the car and the maximum height of occupants. We also measure road, wind and engine noise and assess how well the car deals with bumps from large potholes to jittery surfaces like cobble stones.

Safety kit

How we test safety kit

We factor in the safety equipment that’s factory-fitted or optional, along with how well the car protects its occupants and pedestrians in the event of an accident. We also test how easy it is to fit a variety of child car seats.

Brand reliability 0-4 years

Overall
Electric car reliability
Plug-in hybrid reliability
Petrol reliability
Diesel reliability

How we test brand reliability 0-4 years

Our reliability ratings are based on the feedback from tens of thousands of UK motorists, as collected in our annual Which? car survey. We divide all reliability feedback into three age groups: cars aged up to four years, five to nine years, and 10 to 15 years.

Brand reliability 5-9 years

Overall
Full hybrid reliability
Plug-in hybrid reliability
Diesel reliability

Brand reliability 10-15 years

Overall
Petrol reliability
Diesel reliability

General
Class	Medium/Large SUV
Luxury	Yes
Convertible	No
Availability	Used only
Used price	£12,661 - £22,784
Fuel type	Petrol/Diesel/Mild hybrid
Tested fuel efficiency	35.3mpg
Length	4,671mm
Width (excluding wing mirrors)	1,881mm
Width (including wing mirrors)	2,090mm
Height	1,624mm
Driver max height
Second-row passenger max height
Boot space with seats up
Boot space with seats down
Number of seats	5
Folding rear seats	Yes
Isofix attachments	Yes
Turning circle	12.2 m
On sale date	12 July 2014
Lowest pence-per-mile cost	£18.10

Latest tested engine
Engine and trim name	Xdrvie 35d Steptronic
Fuel type	Diesel
Capacity and power	3-litre (313hp)
Transmission	8-speed automatic
Driven wheels	All-wheel-drive (AWD)
Fuel tank capacity	67 litres
Tested fuel economy: City / Out of town / Motorway (mpg)
Tested fuel economy: Combined (mpg)
Cost per mile	18.1p per mile
Cost of filling tank	£94
Monthly fuel cost
Annual fuel cost
NOx level	Medium
CO level	Low
CO2 at tailpipe/tank-to-wheel (TTW) (g/km)	211
Official Euro emission level	Euro 6b
Braked tow load (KG)	2400kg
Unbraked tow load (KG)	750kg
Engine test date	18 August 2014
Test programme	2012-2016

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BMWX4 (2014-2018)

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pros

cons

What's included?

How we test cars

Ease of driving

Performance

Comfort and practicality

Safety kit

Brand reliability 0-4 years

Brand reliability 5-9 years

Brand reliability 10-15 years

How this product's score compares with other new and used cars we've tested

Suggested Alternatives

BMW

Audi

BMW

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BMWX4 (2014-2018)

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