Mercedes Benz A Class (2014)
2014 Mercedes Benz A Class
CarHunch analysed 24,825 real MOT records for the 2014 Mercedes Benz A Class. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 2014 A-Class passes its MOT slightly more often than the UK average at 83.4% versus 80%, which is reassuring—but the alarming figure is that 42.6% of these vehicles have recorded a dangerous defect at some point, well above acceptable thresholds. Petrol versions fare noticeably better with an 86.3% pass rate compared to 63.7% diesels at 82.7%, suggesting the diesel engines are more prone to issues.
At 63,746 miles median, these nine-year-old cars are running below their expected mileage, which typically helps reliability. However, vehicles are averaging 1.89 failures and nearly 10 advisories per test, pointing to persistent wear items and component degradation—if you're considering one, budget for brake work, suspension repairs, and electrical gremlins, and always get a full pre-purchase inspection focusing on emissions systems and brake condition.
Petrol vs Diesel
Pass rate difference of 3.6 percentage points — worth knowing if you're choosing between the two.
What to check before buying a 2014 Mercedes Benz A Class
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.
- ⚠️ 42.6% of these vehicles have had a dangerous defect recorded. Enter the reg below — the full MOT history will show exactly what was flagged and whether it was resolved.
- 📄 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 Mercedes Benz A Class
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 |
|---|---|---|---|
| Diesel (81%) | 20,094 | 82.7% | 1.98 |
| Petrol (19%) | 4,731 | 86.3% | 1.51 |
Mileage Distribution
Most 2014 Mercedes Benz A Class 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 2014 Mercedes Benz A Class vehicles fall between 50,403 and 79,502 miles.
2014 Mercedes Benz A Class — Still on the Road
Strong survival — 21,658 vehicles still getting MOTs in 2025, 94% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2017–2025.
MOT History Averages
Most Common MOT Issues — 2014 Mercedes Benz A Class
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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56.2%
Offside Front Tyre worn close to legal limit/worn on edge
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54.9%
Nearside Front Tyre worn close to legal limit/worn on edge
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26.7%
Rear Brake pad(s) wearing thin
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25.8%
Front Brake pad(s) wearing thin
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24.2%
Offside Rear Tyre slightly damaged/cracking or perishing
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23.3%
Nearside Rear Tyre slightly damaged/cracking or perishing
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21.8%
Nearside Rear Tyre worn close to legal limit/worn on edge
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21.7%
Front Brake disc worn, pitted or scored, but not seriously weakened
Data covers a 3-year window centred on 2014. Counts include advisories and failures.
Found a specific Mercedes Benz A Class?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.