Mercedes Benz C 250 Amg Line Premium + D A (2017)
2017 Mercedes Benz C 250 Amg Line Premium + D A
CarHunch analysed 184 real MOT records for the 2017 Mercedes Benz C 250 Amg Line Premium + D A. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2017 C 250 AMG diesel has a first-time MOT pass rate of just 48.3%, nearly 32 percentage points below the UK average of 80%, making it a notably unreliable proposition by MOT standards. The good news is that dangerous defects are absent from this cohort, so safety isn't the issue—it's chronic mechanical failures that plague these cars.
At a median mileage of 59,124 miles for a seven-year-old vehicle, these are relatively low-mileage examples, yet they still fail MOT at double the normal rate, suggesting inherent design or component issues rather than wear-and-tear. Averaging 0.2 failures per vehicle means most cars that fail do so repeatedly, indicating expensive recurring problems; if you're considering one, budget for specialist German diesel diagnostics and expect significant repair costs over ownership.
What to check before buying a 2017 Mercedes Benz C 250 Amg Line Premium + D A
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 Mercedes Benz C 250 Amg Line Premium + D A
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (98%) | 180 | 47.3% | 0.19 |
| Gas Bi-Fuel (2%) | 4 | 91.7% | 0.5 |
Mileage Distribution
Most 2017 Mercedes Benz C 250 Amg Line Premium + D A 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 2017 Mercedes Benz C 250 Amg Line Premium + D A vehicles fall between 43,850 and 77,696 miles.
2017 Mercedes Benz C 250 Amg Line Premium + D A — Still on the Road
Strong survival — 65 vehicles still getting MOTs in 2025, 96% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
Found a specific Mercedes Benz C 250 Amg Line Premium + D A?
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