Mercedes Benz A Class (2017)
2017 Mercedes Benz A Class
CarHunch analysed 41,730 real MOT records for the 2017 Mercedes Benz A Class.
Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2017 Mercedes-Benz A-Class passes its MOT on first attempt 87.7% of the time, which is well above the UK average of 80%, but a significant concern is that 34% of these vehicles have recorded a dangerous defect at some point—well above the typical threshold. Petrol versions perform slightly better at 89.3% pass rate versus 87% for diesels, though both are respectable.
At a median mileage of 47,352 miles for a seven-year-old car, these A-Classes show typical wear for their age, and the average of 1.0 failure per vehicle suggests most problems are minor when they do occur. However, the 6.3 advisories per car indicate these are not maintenance-free machines—budget for regular attention to trim, lighting, and fluid levels, and always obtain a full MOT history before purchase to check whether any dangerous defects were recorded on that specific car.
The 2017 Mercedes Benz A Class has a decent first-time pass rate (87.7%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.
These stats describe 41,730 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.
What tends to go wrong
Across 41,730 vehicles — figures show how many had each issue flagged at least once in their MOT history.
Data covers a 3-year window centred on 2017.
See this vehicle's full MOT history & AI hunches
Spot recurring advisories, hidden issues, and how it compares to 41,730 Mercedes Benz A Class cars.
Petrol vs Diesel
Pass rate difference of 2.3 percentage points — worth knowing if you're choosing between the two.
Before you buy a 2017 Mercedes Benz A Class
Based on MOT data from 41,730 vehicles — here's what to check.
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Check the full MOT history.
34% of these vehicles have had a dangerous defect recorded -
recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle. -
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Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price.
Inspection
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Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically.
History
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (69%) | 28,814 | 87% | 1.06 |
| Petrol (31%) | 12,916 | 89.3% | 0.86 |
Colour Breakdown
Based on 357,326 Mercedes Benz A Class vehicles registered in the UK — across all years. From DVLA registration records.
Mileage Distribution
Most 2017 Mercedes Benz A Class vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2017 Mercedes Benz A Class vehicles fall between 36,778 and 60,151 miles.
2017 Mercedes Benz A Class — Still on the Road
Almost all 2017 Mercedes Benz A Classs are still on the road.
Strong survival — 38,916 vehicles still getting MOTs in 2025, 97% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2020–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.
MOT History Averages
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Compare with another model
See how the 2017 Mercedes Benz A Class stacks up against a rival.