BMW X6 reliability, MPG and running costs
Figures updated
The BMW X6 is a car. In 2024 MOT tests it scored 162 for reliability (100 is average), ranking 44 of 442, and 17.4% failed first time against a UK average of 28.5%. Its most common MOT failure is condition (2.7% of tests).
Ranked 44 of 442 cars in the 2024 MOT Reliability League
In 2024, 15,327 BMW X6s aged 3 to 20 had an MOT and 17.4% failed first time (UK average 28.5%). Taking age and mileage into account, the BMW X6 is 38% less likely to fail than the average car of the same age and mileage. At the first MOT, at three years old, 15.6% failed (UK 12.7%).
First-time fail rate
17.4%
UK 28.5%
Fail rate at 3 years
15.6%
UK 12.7%
Average miles a year
9,400
Typical age at test: 8 years
BMW X6 MOT failure rate by age
Most common BMW X6 MOT faults
- Condition: has ply or cords exposed2.7% of tests
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords2.1% of tests
- Tread depth: tread depth below requirements of 1.6mm1.5% of tests
- Coil spring: fractured or broken1.5% of tests
- Malfunction indicator lamp: inoperative or indicates a malfunction1.2% of tests
- Washers: provides insufficient washer liquid1.1% of tests
What the BMW X6 fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Tyres | 6.9% | About average |
| Lights and electrics | 4.1% | ▼ 60% less often |
| Suspension | 4.1% | ▼ 52% less often |
| Visibility | 2.6% | ▼ 40% less often |
| Brakes | 2.1% | ▼ 67% less often |
| Exhaust and emissions | 1.6% | ▼ 47% less often |
| Wheels | 0.8% | ▲ 1.8× as often |
| Body and structure | 0.8% | ▼ 73% less often |
| Seat belts and airbags | 0.3% | ▼ 61% less often |
| Steering | 0.1% | ▼ 93% less often |
What MPG does the BMW X6 do?
Official economy for the BMW X6 ranges from 20.3 to 47.1mpg across the 49 versions listed by the Vehicle Certification Agency (2008–2025). A typical petrol version manages 28mpg and a typical diesel 38.2mpg. Expect 10–15% less in real-world driving.
Work out a journey's fuel costHow much is road tax on a BMW X6?
Any BMW X6 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A BMW X6 registered between March 2001 and March 2017 is taxed on its CO2: £275 to £790 a year.
Work out tax for a specific carBMW X6 specs and running costs
Official figures for 49 versions sold in the UK between 2008 and 2025.
Fuel types
Diesel, Petrol
Official economy
20.3–47.1 mpg
CO2
157–325 g/km
Power
298–625 PS
| Version | Fuel | Economy | CO2 | Car tax | Company car tax |
|---|---|---|---|---|---|
| X6 X6 xDrive30d M Sport298 PS · A8 · listed 2025 | Diesel | 37.6 mpg | 189g | £200 | 37% |
| X6 X6 xDrive40d M Sport352 PS · A8 · listed 2025 | Diesel | 37.1 mpg | 190g | £200 | 37% |
| X6 X6 xDrive40i M Sport381 PS · A8 · listed 2025 | Petrol | 31.3 mpg | 195g | £200 | 37% |
| X6 X6 M60i xDrive530 PS · A8 · listed 2025 | Petrol | 24 mpg | 259g | £200 | 37% |
| X6 M X6 M Competition625 PS · A8 · listed 2025 | Petrol | 22 mpg | 285g | £200 | 37% |
| X6 Series F16, From December 2014 X6 xDrive30d - 19'' tyresA8 · listed 2018 | Diesel | 47.1 mpg | 157g | £200 | – |
| X6 Series F16, From December 2014 X6 xDrive30d - 20'' tyresA8 · listed 2018 | Diesel | 47.1 mpg | 159g | £200 | – |
| X6 Series F16, From December 2014 X6 xDrive40d - 19'' tyresA8 · listed 2018 | Diesel | 45.6 mpg | 163g | £200 | – |
| X6 Series F16, From December 2014 X6 xDrive40d - 20'' tyresA8 · listed 2018 | Diesel | 44.8 mpg | 165g | £200 | – |
| X6 Series F16, From December 2014 X6 M50d - 20'' tyresA8 · listed 2018 | Diesel | 42.8 mpg | 174g | £200 | – |
| X6 Series F16, From December 2014 X6 xDrive50i - 19'' tyresA8 · listed 2018 | Petrol | 29.1 mpg | 225g | £200 | – |
| X6 Series F16, From December 2014 X6 xDrive50i - 20'' tyresA8 · listed 2018 | Petrol | 29.1 mpg | 227g | £200 | – |
| X6 M Series F86, From April 2015 X6 MA8 · listed 2018 | Petrol | 25.4 mpg | 258g | £200 | – |
| X6 Series F16, From December 2014 X6 M50d - all wheels & tyresA8 · listed 2015 | Diesel | 42.8 mpg | 174g | £325 | – |
| X6 Series F16, From December 2014 X6 xDrive30d - 255/50 R19 tyres front & rearA8 · listed 2015 | Diesel | 47.1 mpg | 157g | £275 | – |
Economy and CO2 are official NEDC (before 2018) or WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement. Company car tax is the 2026/27 benefit-in-kind rate. Showing the 15 most recent of 49 versions.
What a BMW X6 costs to fuel
- petrol, typical official 28mpg…
- diesel, typical official 38.2mpg…
Official figures are usually 10–15% better than real-world driving.
Work out a journey in a BMW X6Buying a used BMW X6?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Other BMW models
Frequently asked questions
›Is the BMW X6 reliable?
Its MOT record is better than average: the BMW X6 is 38% less likely to fail than the average car of the same age and mileage, with a reliability score of 162 in our 2024 league (100 is average).
›What are common problems with the BMW X6?
The most common MOT fault is “Condition: has ply or cords exposed”, found in 2.7% of tests.
›What MPG does the BMW X6 do?
Official economy for the BMW X6 ranges from 20.3 to 47.1mpg across the 49 versions listed by the Vehicle Certification Agency (2008–2025). A typical petrol version manages 28mpg and a typical diesel 38.2mpg. Expect 10–15% less in real-world driving.
›How much is road tax on a BMW X6?
Any BMW X6 first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates). A BMW X6 registered between March 2001 and March 2017 is taxed on its CO2: £275 to £790 a year.
›How many BMW X6s fail their MOT?
17.4% of BMW X6s aged 3 to 20 failed their MOT first time in 2024, and 15.6% failed at their first MOT.
Sources: DVSA anonymised MOT tests 2024, all versions of the BMW X6 combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.