Fiat 500 S (2015)
2015 Fiat 500 S
CarHunch analysed 325 real MOT records for the 2015 Fiat 500 S. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2015 FIAT 500 S is a reliability concern: only 43% pass their MOT first time, against the UK average of 80%, and the petrol variants show a 0% pass rate in this cohort (160 vehicles), suggesting systemic issues specific to that engine. The "Other" fuel type—likely LPG or hybrid conversions—performs far better at 84.8%, but this is a small and unrepresentative segment.
At around 50,000 miles on average, these cars are accumulating failures at a troubling rate of 0.47 per vehicle, and crucially, no recorded dangerous defects means the problems are fixable rather than catastrophic. If you're seriously considering this model, insist on a full pre-purchase inspection and budget for early repair costs; the petrol variant particularly warrants extreme caution.
What to check before buying a 2015 Fiat 500 S
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Fiat 500 S
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Other (50%) | 164 | 84.8% | 0.92 |
| Petrol (49%) | 160 | 0% | 0 |
| Electric (0%) | 1 | 83.3% | 1 |
Mileage Distribution
Most 2015 Fiat 500 S vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2015 Fiat 500 S vehicles fall between 37,002 and 60,506 miles.
2015 Fiat 500 S — Still on the Road
Strong survival — 133 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2019–2025.
MOT History Averages
Found a specific Fiat 500 S?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.