Mercedes Benz

Mercedes Benz C 220 Amg Line D Auto (2018)

800 real MOT outcomes analysed • 94% first-time pass rate

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. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

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.

The 2018 Mercedes Benz C 220 Amg Line D Auto passes its MOT first time more often than most UK vehicles (94% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

First-time pass
94%
UK average ~80%
Better than average
Dangerous (ever)
0%
At least once in MOT history
Check this vehicle
Avg failures / car
0.11
Over 1.9 tests on record
Low
Typical mileage
58k
Middle half: 46k–71k
For context
Good baseline reliability. A 94% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

These stats describe 800 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.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 800 Mercedes Benz C 220 Amg Line D Auto cars.

UK

Before you buy a 2018 Mercedes Benz C 220 Amg Line D Auto

Based on MOT data from 800 vehicles — here's what to check.

  • 📋 Check the full MOT history. 0% 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.
  • 🔍 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (100%) 799 94% 0.11

Colour Breakdown

Based on 1,805 Mercedes Benz C 220 Amg Line D Auto vehicles registered in the UK — across all years. From DVLA registration records.

Blue 29%
524
Black 23.2%
419
Grey 19.9%
359
Silver 16.7%
302
White 10.3%
186
Red 0.8%
15

Mileage Distribution

Most 2018 Mercedes Benz C 220 Amg Line D Auto 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.

58,116
typical
45,554
low mileage
70,806
high mileage

Half of all 2018 Mercedes Benz C 220 Amg Line D Auto vehicles fall between 45,554 and 70,806 miles.

Is the mileage you're seeing normal?
Under 45,554 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
45,554–70,806 miles — normal for age. This is where most 2018 Mercedes Benz C 220 Amg Line D Autos sit.
Over 95,588 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 Mercedes Benz C 220 Amg Line D Auto — Still on the Road

Numbers are thinning — 64% of 2018 Mercedes Benz C 220 Amg Line D Autos are still active.

203 vehicles still getting MOTs in 2025 — 64% of the peak remain.

294 203 2022 2025

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

1.9
Avg MOT tests per vehicle
0.11
Avg failures per vehicle
0
Avg advisories per vehicle
Other model years — Mercedes Benz C 220 Amg Line D Auto: All C 220 Amg Line D Auto years → Which year to buy? →
2016 2017 2019

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