- X5 won’t be the cheapest car to run
- Diesels offer best economy
- Plug-in better for town use
There won’t be an X5 that’s truly cheap to run. After all, something’s got to power that huge body around. Unsurprisingly the petrols will be costly to run thanks to high fuel consumption. If you’re just driving it around town most of the time, then it might be worth a look as the costs will be easier to stomach. The xDrive40i claims 25-27.2mpg, while CO2 emissions are rated between 162g/km and 166g/km. However, if the car has seven seats then there’s an increase up to 170g/km for some models.
The M50i is the thirstiest in the range, with BMW claiming 22.4-23mpg, so don’t expect great things if you make the most of that 530hp engine under the bonnet. CO2 emissions aren’t too bad, though, rated at 165g/km.
Go for the plug-in hybrid xDrive45e and BMW claims it’ll do up to around 135mpg, but there’s a catch. You need to be plugging the car in and using it just on battery power all the time to get anywhere near that number. Otherwise you’ll just be running a big, petrol SUV. CO2 emissions are impressively low, however, with BMW claiming the xDrive45e produces just 41g/km of CO2 in M Sport trim. It’s 39g/km for the xLine model.
Things are better with the diesel options in terms of fuel economy. The xDrive30d returns between 34 and 37.7mpg – which should be easy to achieve – while the M50d claims up to 33.6mpg. Take advantage of that torquey engine and 400hp, however, and it’ll dip below 30mpg with ease. This also has the highest CO2 emissions of the range at 194g/km, while the xDrive30d matches the petrols at around 165g/km (159g/km for an xLine on smaller wheels).
Is it reliable?
- BMW has a strong reputation for reliability
- The X5 looks and feels high quality and well built
- Two recalls for 2018 models, but affected a handful of cars
BMWs tend to have impressive reliability – and the latest X5 shouldn’t prove to be any different. At least not mechanically. The engines are used throughout the BMW Group in several other models, and the same goes for things like the xDrive all-wheel drive systems.
There have been two recalls affecting cars built in 2018, but each one affects fewer than 20 cars in each case, so there’s little to worry about if you’re buying new. And if you do need some extra peace of mind, the company’s three-year, unlimited mileage warranty will keep you covered.
Servicing an X5 won’t come cheap, however, and we’d keep an eye on the car’s media system for software updates. It features BMW’s latest iDrive 7.0 system and we’ve found it can have a few glitches when we’ve tried it in other models. No huge deal, though – it’s mainly been when using Apple CarPlay, with no issues found when using the main operating system.
Estimated fuel cost per year
|Fuel type||Pence per litre||Estimated cost per year *|
|Unleaded||128p||£1,763 - £1,818 *|
|Diesel||131p||£1,267 - £1,489 *|
* 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.
Highest and lowest CO2 emissions
|Engine||CO2 emissions||Road tax (12 months)|
|4.4i Petrol||g/km (Min)||N/A|
|3.0d Diesel||180 g/km (Max)||£465|
Ongoing running costs
|Road tax (12 months)||£455 - £465|
45 - 50
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.