Mercedes C250

Reliability, estimated running costs, and MOT data across 3 model years from 130 MOT tests in 2024.

Avg Pass Rate

77%

Total Tests

130

Model Years

2009 to 2012

Years Covered

About the Mercedes C250

The Mercedes C250 was MOT tested 130 times in 2024 (DVSA data, retests included) across 3 model years (2009 to 2012), with an average pass rate of 77%. That's 5 points below the average of 82% across all models in our data, so check the year-by-year data carefully before buying. Our records list diesel versions.

Mileage Across Years

The oldest model in our data (2009) averages 108,959 miles, while the newest (2012) averages 111,046 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Compared to the Mercedes brand average of 87%, the C250 is 10 points lower, placing it among the less reliable Mercedes models.

Estimated Running Costs

Fuel (Diesel, 2143cc)

£1,676

Road Tax

£410

MOT Test

£55

Predicted Repairs

£350

Total per year£2,491

Per month£208/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2012 details

How reliable is the Mercedes C250?

vs average of all models-5% (82% avg)

vs Mercedes brand average-10% (87% avg)

Mercedes C250 by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2012	84%	45	111,046 mi
2011	71%	52	110,974 mi
2009	76%	33	108,959 mi

Questions about the Mercedes C250

Is the Mercedes C250 reliable?

Across its 3 model years in our data (2009 to 2012), the Mercedes C250 averages a 77% MOT pass rate, from 130 tests (DVSA MOT data for tests in 2024, retests included). That's 5 points below the average of 82% across all models in the same data.