MOT reliability

Mercedes-benz Cla

Q: Is the Mercedes-benz Cla reliable?

Across 67,087 Mercedes-benz Cla vehicles in our MOT data, 84% pass the MOT (a 16% failure rate), with about 1.2 faults or advisories recorded per test.

67,087 vehicles · 435,009 completed MOT tests analysed

84%

MOT pass rate

Based on 67,087 Mercedes-benz Cla vehicles and 435,009 completed MOT tests, the Mercedes-benz Cla has an overall 84% pass rate, with an average recorded mileage of 66,580 miles.

67,087

Vehicles

435,009

MOT tests

8,512

Avg miles / year

1.2

Faults per test

Dangerous-fault share

Mercedes-benz Cla problem areas

Where faults occur most across all Mercedes-benz Cla MOT tests:

Tyres, wheels & suspension49%
Brakes24%
Other17%
Visibility5%
Lamps & electrical4%
Emissions & nuisance2%
Identification & plates1%
Seatbelts & equipment1%

Mercedes-benz Cla pass rate by age

How the Mercedes-benz Cla's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)	Tests	Pass rate
1	75	87%
2	2,927	91%
3	78,995	88%
4	70,606	87%
5	63,504	86%
6	57,111	84%
7	50,307	83%
8	41,189	82%
9	30,966	80%
10	21,296	78%
11	11,822	78%
12	5,079	77%
13	1,122	75%
16	1	100%

Fuel types: Petrol (41,788), Diesel (25,294), Hybrid Electric (Clean) (5)

Most common Mercedes-benz Cla MOT faults

These are the faults and advisories recorded most often across Mercedes-benz Cla MOT tests:

Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (24,992 times)
Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (24,425 times)
Front Brake pad(s) wearing thin (1.1.13 (a) (ii)) (12,975 times)
Rear Brake pad(s) wearing thin (1.1.13 (a) (ii)) (10,929 times)
Offside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (9,849 times)
Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (9,385 times)
Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (9,187 times)
Nearside Rear Tyre slightly damaged/cracking or perishing (5.2.3 (d) (ii)) (9,032 times)
Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (8,452 times)
Nearside Rear Child Seat fitted not allowing full inspection of adult belt (6,661 times)
Rear Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (6,518 times)
Front Brake disc worn, but not excessively (1.1.14 (a) (i)) (4,872 times)
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i)) (4,456 times)
Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) (3,932 times)
Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e)) (3,368 times)

Mercedes-benz Cla pass rate by registration year

Year	Vehicles	Tests	Pass rate	Avg mileage
2023	1,287	1,512	90%	31,695
2022	5,721	10,398	89%	31,204
2021	6,146	17,993	88%	40,973
2020	5,071	20,328	86%	47,537
2019	8,098	41,438	86%	52,545
2018	8,619	55,098	85%	63,943
2017	8,868	66,708	85%	74,796
2016	8,204	69,913	84%	84,978
2015	7,571	71,343	83%	92,021
2014	5,000	51,694	83%	97,758
2013	2,499	28,589	81%	101,093
2003	1	1	100%	187,965
1987	1	1	100%	13,887
1972	1	1	100%	19,987

Mercedes-benz Cla reliability FAQ

Across 67,087 Mercedes-benz Cla vehicles in our MOT data, 84% pass the MOT (a 16% failure rate), with about 1.2 faults or advisories recorded per test.

The most frequently recorded Mercedes-benz Cla MOT issues are: Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)); Front Brake pad(s) wearing thin (1.1.13 (a) (ii)).

The typical Mercedes-benz Cla in our data has covered around 66,580 miles.

Compare the Mercedes-benz Cla

See how the Mercedes-benz Cla stacks up against other Mercedes-benz models on MOT reliability:

Cla vs C Cla vs E Cla vs Sprinter Cla vs A-class

Check a specific Mercedes-benz Cla

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Mercedes-benz models · Learn about common MOT failures · what an MOT checks