FIAT 500X (2018)
Running costs, common problems, and reliability data based on 4,809 real MOT tests in 2024.
MOT Pass Rate
87%
Total Tests (2024)
4,809
Avg Mileage
40,545 mi
Est. Annual Cost
£1,732
Is the 2018 FIAT 500X reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It also outperforms the FIAT brand average of 83%.
At 6 years old, 87% of FIAT 500Xs from 2018 passed their MOT first time in 2024. That's based on 4,809 tests across the UK. The average mileage at this age is 40,545 miles.
How does the 2018 FIAT 500X compare?
Mileage Analysis
The average 2018 FIAT 500X has 40,545 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.
Best year to buy a FIAT 500X?
The most reliable year is the 2020 model with a 92% MOT pass rate, while the 2015 model has the lowest at 80%. The 2018 sits between the two at 87%.
How much does a 2018 FIAT 500X 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.
FIAT 500X by Year
Checking a specific FIAT 500X?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2018 FIAT 500X
The 2018 FIAT 500X is a small family car with a 1598cc petrol engine. 4,809 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model falls short of that benchmark.
With an average of 40,545 miles at 6 years old, FIAT 500X owners drive about as much as the UK average.
2018 FIAT 500X Fuel Costs
The 1598cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2018 FIAT 500X?
Total estimated annual running cost is £1,732 (£144/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.
FIAT 500X Reliability Trend
Newer FIAT 500Xs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2018 FIAT 500X
At 6 years old, the FIAT 500X 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 2020 model has the highest pass rate at 92%.
Alternatives to the 2018 FIAT 500X
The FIAT 500X is actually the most reliable option among similar petrol small family cars from this era. Here are comparable petrol cars with similar engines:
- VAUXHALL CORSA (2016) 81% pass rate (-6%) from 133,045 tests
- FORD FOCUS (2016) 87% pass rate (same) from 109,880 tests
- NISSAN QASHQAI (2017) 86% pass rate (-1%) from 100,176 tests
- VOLKSWAGEN POLO (2016) 84% pass rate (-3%) from 92,860 tests