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Mercedes Benz CLA MOT Check

MOT pass rates, common failures, and reliability data for the Mercedes Benz CLA. Check any CLA by registration number below.

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86.6%

Avg Pass Rate

-3.6%

vs Mercedes Benz Avg

10

Year Ranges

Excellent

Reliability

Mercedes Benz CLA — MOT Reliability Overview

The Mercedes Benz CLA has an average MOT pass rate of 86.6%, which is 3.6 percentage points below the Mercedes Benz brand average of 90.2%. This is a strong result, indicating that the CLA is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

The most common reasons a Mercedes Benz CLA fails its MOT are a spring or spring component fractured or seriously weakened, a suspension joint dust cover missing or no longer prevents the ingress of dirt etc, tyre tread depth not in accordance with the requirements. If you are preparing your CLA for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

Before buying a used Mercedes Benz CLA, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the Mercedes Benz CLA performs at MOT across different model years.

2022

Based on 716 vehicles

96.5%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

0.7%

Retest Rate

4.1%

Mileage at 3yr

39k mi

2021

Based on 11,983 vehicles

91.6%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

2.8%

Retest Rate

9.7%

Mileage at 3yr

46k mi

2020

Based on 15,044 vehicles

89.4%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

3.0%

Retest Rate

10.9%

Mileage at 3yr

44k mi

Mileage at 5yr

65k mi

2019

Based on 23,480 vehicles

88.4%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

3.9%

Retest Rate

12.2%

Mileage at 3yr

45k mi

Mileage at 5yr

66k mi

2018

Based on 24,216 vehicles

87.1%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

4.8%

Retest Rate

13.9%

Mileage at 5yr

70k mi

2017

Based on 24,693 vehicles

84.7%Good
Mercedes Benz average: 90.2%
Dangerous Defects

5.0%

Retest Rate

17.3%

Mileage at 5yr

79k mi

2016

Based on 23,262 vehicles

83.8%Good
Mercedes Benz average: 90.2%
Dangerous Defects

4.7%

Retest Rate

17.9%

2015

Based on 20,909 vehicles

83.3%Good
Mercedes Benz average: 90.2%
Dangerous Defects

4.9%

Retest Rate

17.9%

Mileage at 10yr

138k mi

2014

Based on 13,649 vehicles

81.6%Good
Mercedes Benz average: 90.2%
Dangerous Defects

4.7%

Retest Rate

20.0%

Mileage at 10yr

142k mi

2013

Based on 6,385 vehicles

79.2%Good
Mercedes Benz average: 90.2%
Dangerous Defects

5.0%

Retest Rate

21.7%

Mileage at 10yr

140k mi

Top MOT Failures — Mercedes Benz CLA

The most common reasons a Mercedes Benz CLA fails its MOT, aggregated across all year ranges.

1

A spring or spring component fractured or seriously weakened

1.7%
2

A suspension joint dust cover missing or no longer prevents the ingress of dirt etc

1.5%
3

Tyre tread depth not in accordance with the requirements

1.5%
4

A tyre seriously damaged

1.4%
5

Engine MIL illuminated indicating a malfunction

1.3%
Mercedes Benz CLA Common Faults & Repair Costs

Where Failures Occur

The areas of the vehicle most commonly flagged during MOT inspections.

Front Offside

1.1%

Front Nearside

1.0%

Front

0.7%

Other Mercedes Benz Models

Compare MOT reliability across Mercedes Benz models.

Mercedes Benz E 300

94.2% pass rate

Mercedes Benz E

83.5% pass rate

Mercedes Benz Amg Gla 45 S 4matic+ Auto

92.7% pass rate

Mercedes Benz V

85.8% pass rate

Mercedes Benz Vito 112

87.8% pass rate

Mercedes Benz Sl 500

100.0% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for Mercedes Benz CLA

Mercedes Benz CLA — Frequently Asked Questions

Common questions about the Mercedes Benz CLA MOT and reliability.

What is the MOT pass rate for the Mercedes Benz CLA?
The average MOT pass rate for the Mercedes Benz CLA is 86.6% compared to the Mercedes Benz average of 90.2%. Pass rates vary by year — check the year-by-year breakdown on this page for details.
What are the most common MOT failures on a Mercedes Benz CLA?
The most common MOT failures on the Mercedes Benz CLA are: A spring or spring component fractured or seriously weakened (1.7%), A suspension joint dust cover missing or no longer prevents the ingress of dirt etc (1.5%), Tyre tread depth not in accordance with the requirements (1.5%). These are the components most likely to cause an MOT failure.
Is the Mercedes Benz CLA reliable?
With an average MOT pass rate of 86.6%, the Mercedes Benz CLA is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.
How do I check the MOT history of a Mercedes Benz CLA?
Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.
What mileage should I expect on a Mercedes Benz CLA?
Typical mileage for the Mercedes Benz CLA: 39,494 miles at 3 years. Use these benchmarks when evaluating a used CLA to spot vehicles with unusually high or low mileage.

Check Your Mercedes Benz CLA's MOT History

Enter the registration number for the full MOT history — free and instant.

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