Mercedes CLA

Reliability, estimated running costs, and MOT data across 10 model years from 130,644 MOT tests in 2024.

Avg Pass Rate

89%

Total Tests

130,644

Highest Pass Rate

2021 (92%)

Years Covered

About the Mercedes CLA

The Mercedes CLA was MOT tested 130,644 times in 2024 (DVSA data, retests included) across 10 model years (2013 to 2022), with an average pass rate of 89%. That's comfortably above the average of 82% across all models in our data. Our records list diesel and petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 2021 model has the highest pass rate at 92% from 12,888 tests. The 2013 model has the lowest at 84%. The 8 point gap means pass rates vary somewhat between years, but no year is dramatically different. Newer cars usually pass more often simply because they are younger.

Reliability Trend

Newer Mercedes CLAs pass their MOT more often than older ones, by 4 percentage points on average, which is mostly down to age and wear.

Mileage Across Years

The oldest model in our data (2013) averages 93,382 miles, while the newest (2022) averages 25,883 miles.

Estimated Running Costs

Fuel (Petrol, 1332cc)

£1,398

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£1,853

Per month£154/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 2022 details

How reliable is the Mercedes CLA?

vs average of all models+7% (82% avg)

vs Mercedes brand average+2% (87% avg)

Best to worst year spread8 percentage points

Reliability trendImproving over years

Mercedes CLA by Year

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

Year	Pass Rate	Tests	Avg Mileage
2022	96%	744	25,883 mi
2021	92%	12,888	28,983 mi
2020	91%	11,039	35,990 mi
2019	90%	17,419	41,662 mi
2018	89%	18,059	51,592 mi
2017	87%	19,333	63,934 mi
2016	87%	18,327	74,073 mi
2015	86%	16,532	82,370 mi
2014	85%	11,121	89,018 mi
2013	84%	5,182	93,382 mi

Questions about the Mercedes CLA

Is the Mercedes CLA reliable?

Across its 10 model years in our data (2013 to 2022), the Mercedes CLA averages an 89% MOT pass rate, from 130,644 tests (DVSA MOT data for tests in 2024, retests included). That's 7 points above the average of 82% across all models in the same data. The 2021 model has the highest pass rate of the years with at least 100 tests, at 92%.

Which year Mercedes CLA has the best MOT pass rate?

Of the years with at least 100 tests, the 2021 Mercedes CLA has the highest MOT pass rate at 92%, while the 2013 model has the lowest at 84%, a 8 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.