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Mercedes-Benz CLA-Class Common Problems, Faults & Repair Costs (2026)

Based on official DVSA MOT test data. View the most common MOT failure categories, pass rates, and estimated repair costs for the Mercedes-Benz CLA-Class (2013–present).

MOT Pass Rate

83.8%1.8% above national avg (82%)

Reliability rating: Good — based on approx. 18,000 tests

Dangerous Defects

1.40%

Moderate risk

Retest Rate

11.5%

of failed tests need a retest

Top MOT Failure Categories

1

Lamps, reflectors and electrical equipment

Est. repair: £40–£200

13.8%
2

Suspension

Est. repair: £120–£450

12.5%
3

Brakes

Est. repair: £100–£350

11.0%
4

Tyres

Est. repair: £50–£120 per tyre

9.5%
5

Exhaust, fuel and emissions

Est. repair: £40–£200

7.0%

Where Faults Occur

30.0%

Front

27.0%

Rear

20.0%

Offside

Mileage Benchmarks

At 3 years

24,000 mi

At 5 years

40,000 mi

At 10 years

N/A

Significantly higher or lower mileage than these benchmarks may indicate unusual usage patterns. Check the full MOT history for mileage consistency.

Is a Mercedes-Benz CLA-Class a Good Buy?

The Mercedes-Benz CLA-Class demonstrates above-average reliability based on MOT test data, with a 83.8% pass rate. This places it 1.8% above the national average, suggesting lower ongoing maintenance costs compared to many competitors.

While no car is without faults, lamps, reflectors and electrical equipment issues are the most common concern, affecting approximately 13.8% of failed tests. These tend to be relatively affordable to fix at £30–£150.

Mercedes-Benz CLA-Class MOT Check & History

View detailed MOT pass rates by year, mileage benchmarks, and full test history data for the Mercedes-Benz CLA-Class.

View Mercedes-Benz CLA-Class MOT Data

Check a Specific Mercedes-Benz CLA-Class

Enter a registration number to view the full MOT history for any Mercedes-Benz CLA-Class.

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Other Mercedes-Benz Models

Mercedes-Benz C-Class

80.5%

Lamps, reflectors and electrical equipment →

Mercedes-Benz A-Class

82.8%

Lamps, reflectors and electrical equipment →

Mercedes-Benz E-Class

79.2%

Lamps, reflectors and electrical equipment →

Mercedes-Benz GLA-Class

84.5%

Lamps, reflectors and electrical equipment →

Mercedes-Benz B-Class

79.8%

Lamps, reflectors and electrical equipment →

Mercedes-Benz GLC-Class

85.2%

Lamps, reflectors and electrical equipment →

View all Mercedes-Benz models

Frequently Asked Questions

What are the most common MOT faults on a Mercedes-Benz CLA-Class?
The top MOT failure on the Mercedes-Benz CLA-Class is Lamps, reflectors and electrical equipment, accounting for approximately 13.8% of all failures. Other common issues include suspension and brakes.
What is the Mercedes-Benz CLA-Class MOT pass rate?
The Mercedes-Benz CLA-Class has an estimated MOT pass rate of 83.8%, which is 1.8% above the national average of 82%. This rates the Mercedes-Benz CLA-Class as "Good" for MOT reliability.
Is the Mercedes-Benz CLA-Class reliable?
Based on DVSA MOT data, the Mercedes-Benz CLA-Class has a good reliability record with a 83.8% pass rate. It has a dangerous defect rate of 1.40% and a retest rate of 11.5%.
How much does it cost to fix common Mercedes-Benz CLA-Class MOT failures?
Typical repair costs for Mercedes-Benz CLA-Class MOT failures range from £30–£200 for lamps, reflectors and electrical equipment issues to £120–£450 for suspension problems. Prices are estimates based on typical UK independent garage rates.
What mileage should a Mercedes-Benz CLA-Class have?
Based on MOT test data, the average Mercedes-Benz CLA-Class covers approximately 24,000 mi by 3 years, 40,000 mi by 5 years, and N/A by 10 years. Significantly higher or lower mileage may warrant closer inspection.
Should I buy a used Mercedes-Benz CLA-Class?
The Mercedes-Benz CLA-Class is generally a solid choice based on MOT data. Check the full MOT history of any specific vehicle before purchasing, paying particular attention to lamps, reflectors and electrical equipment issues and mileage consistency.
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