CarCostCheck

Mercedes C 300 amg line ed premium de a

Reliability, running costs, and MOT data across 3 years from 516 real MOT tests.

Avg Pass Rate

82%

Total Tests

516

Best Year

2020 (84%)

Years Covered

3

How reliable is the Mercedes C 300 amg line ed premium de a?

vs national average+0% (82% avg)
vs Mercedes brand average-5% (87% avg)
Best to worst year spread7 percentage points
Reliability trendDeclining over years

Mercedes C 300 amg line ed premium de a by Year

YearPass RateTestsAvg Mileage
202177%5647,155 mi
202084%38454,913 mi
201984%7657,348 mi

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About the Mercedes C 300 amg line ed premium de a

The Mercedes C 300 amg line ed premium de a has been tested 516 times in 2024 MOT data across 3 model years (2019 to 2021), with an average pass rate of 82%. That's close to the national average of 82%. Available as ED.

Best and Worst Years

The 2020 model is the most reliable with a 84% pass rate from 384 tests. The 2021 model has the lowest at 77%. The 7 point spread between years means reliability varies somewhat, but no year is dramatically different.

Reliability Trend

Older MERCEDES C 300 AMG LINE ED PREMIUM DE As tend to have better MOT pass rates than newer ones, with an average decline of 4 percentage points across model years.

Mileage Across Years

The oldest model in our data (2019) averages 57,348 miles, while the newest (2021) averages 47,155 miles.

Compared to the Mercedes brand average of 87%, the C 300 amg line ed premium de a is 5 points lower, placing it among the less reliable Mercedes models.

Click any year in the table above to see detailed running costs, individual reliability data, and comparisons with similar cars.