Mercedes Benz C 220 Amg Line D Auto (2018)
2018 Mercedes Benz C 220 Amg Line D Auto
CarHunch analysed 800 real MOT records for the 2018 Mercedes Benz C 220 Amg Line D Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2018 C 220 AMG Line is a serious reliability concern: only 50.2% pass their MOT first time, compared to the UK average of 80%, and that gap represents a real pattern of faults rather than one-off issues. The good news is that dangerous defects are absent from this dataset, so you're not looking at safety-critical failures, but the consistent failure rate suggests ongoing maintenance costs that owners should budget for.
At 58,116 miles median, these cars are running mid-range mileage for their age, yet they're still failing MOT at double the national rate—this isn't a mileage story, it's a build or design issue with the model itself. When this car does fail, it averages 0.11 failures per test, indicating multiple small problems rather than single catastrophic ones; if you're considering buying one, get a pre-purchase inspection by a Mercedes specialist and factor regular preventative servicing into your ownership cost.
What to check before buying a 2018 Mercedes Benz C 220 Amg Line D Auto
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 220 Amg Line D Auto
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 (100%) | 799 | 50.1% | 0.11 |
| Gas Bi-Fuel (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 2018 Mercedes Benz C 220 Amg Line D Auto 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 2018 Mercedes Benz C 220 Amg Line D Auto vehicles fall between 45,554 and 70,806 miles.
2018 Mercedes Benz C 220 Amg Line D Auto — Still on the Road
203 vehicles still getting MOTs in 2025 — 64% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2022–2025.
MOT History Averages
Found a specific Mercedes Benz C 220 Amg Line D Auto?
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