BMW X3 (2020)
Running costs, common problems, and reliability data based on 13,187 real MOT tests in 2024.
MOT Pass Rate
92%
Total Tests (2024)
13,187
Avg Mileage
33,638 mi
Est. Annual Cost
£2,037
Is the 2020 BMW X3 reliable?
Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the BMW brand average of 88%.
At 4 years old, 92% of BMW X3s from 2020 passed their MOT first time in 2024. That's based on 13,187 tests across the UK. The average mileage at this age is 33,638 miles.
How does the 2020 BMW X3 compare?
Mileage Analysis
The average 2020 BMW X3 has 33,638 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.
Best year to buy a BMW X3?
The most reliable year is the 2021 model with a 94% MOT pass rate, while the 2005 model has the lowest at 76%. The 2020 sits between the two at 92%.
How much does a 2020 BMW X3 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW X3 by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2021 | 94% | 5,413 | 24,798 mi |
| 2020 | 92% | 13,187 | 33,638 mi |
| 2019 | 92% | 32,937 | 42,303 mi |
| 2018 | 92% | 17,186 | 49,536 mi |
| 2017 | 89% | 16,666 | 61,118 mi |
| 2016 | 88% | 18,166 | 70,153 mi |
| 2015 | 87% | 14,189 | 82,377 mi |
| 2014 | 85% | 12,226 | 91,766 mi |
| 2013 | 84% | 15,082 | 98,171 mi |
| 2012 | 83% | 14,378 | 104,808 mi |
| 2011 | 84% | 8,272 | 111,744 mi |
| 2010 | 84% | 1,786 | 113,992 mi |
| 2009 | 83% | 2,902 | 117,342 mi |
| 2008 | 81% | 3,247 | 120,389 mi |
| 2007 | 78% | 4,940 | 130,152 mi |
| 2006 | 78% | 6,611 | 135,824 mi |
| 2005 | 76% | 5,434 | 140,749 mi |
| 2004 | 78% | 4,438 | 123,849 mi |
Checking a specific BMW X3?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2020 BMW X3
The 2020 BMW X3 is a premium performance with a 2998cc petrol engine. 13,187 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.
With an average of 33,638 miles at 4 years old, BMW X3 owners drive about as much as the UK average.
2020 BMW X3 Fuel Costs
The 2998cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 BMW X3?
Total estimated annual running cost is £2,037 (£170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
BMW X3 Reliability Trend
Newer BMW X3s show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2020 BMW X3
At 4 years old, the BMW X3 offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2021 model has the highest pass rate at 94%. With 13,187 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2020 BMW X3
If reliability is your priority, there are 2 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- BMW 5 SERIES (2018) 91% pass rate (-1%) from 40,272 tests
- LAND ROVER RANGE ROVER SPORT (2018) 93% pass rate (+1%) from 34,257 tests
- MERCEDES GLC (2019) 93% pass rate (+1%) from 30,341 tests
- BMW X5 (2019) 92% pass rate (same) from 23,506 tests