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Mercedes Benz C 300 Amg Line Edition De Auto MOT Check

MOT pass rates, common failures, and reliability data for the Mercedes Benz C 300 Amg Line Edition De Auto. Check any C 300 Amg Line Edition De Auto by registration number below.

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86.6%

Avg Pass Rate

-3.6%

vs Mercedes Benz Avg

3

Year Ranges

Excellent

Reliability

Mercedes Benz C 300 Amg Line Edition De Auto — MOT Reliability Overview

The Mercedes Benz C 300 Amg Line Edition De Auto 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 C 300 Amg Line Edition De Auto is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

The most common reasons a Mercedes Benz C 300 Amg Line Edition De Auto fails its MOT are the aim of a headlamp is not within limits laid down in the requirements, tyre tread depth not in accordance with the requirements, a tyre cords visible or damaged. If you are preparing your C 300 Amg Line Edition De Auto 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 C 300 Amg Line Edition De Auto, 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 C 300 Amg Line Edition De Auto performs at MOT across different model years.

2021

Based on 366 vehicles

89.1%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

5.6%

Retest Rate

10.6%

Mileage at 3yr

79k mi

2020

Based on 391 vehicles

86.2%Excellent
Mercedes Benz average: 90.2%
Dangerous Defects

6.6%

Retest Rate

13.2%

Mileage at 3yr

72k mi

Mileage at 5yr

115k mi

2019

Based on 45 vehicles

84.4%Good
Mercedes Benz average: 90.2%
Dangerous Defects

11.1%

Retest Rate

18.5%

Mileage at 5yr

121k mi

Top MOT Failures — Mercedes Benz C 300 Amg Line Edition De Auto

The most common reasons a Mercedes Benz C 300 Amg Line Edition De Auto fails its MOT, aggregated across all year ranges.

1

The aim of a headlamp is not within limits laid down in the requirements

3.6%
2

Tyre tread depth not in accordance with the requirements

3.0%
3

A tyre cords visible or damaged

2.8%
Mercedes Benz C 300 Amg Line Edition De Auto Common Faults & Repair Costs

Where Failures Occur

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

Rear Nearside

4.6%

Front Nearside

2.7%

Front Offside

2.5%

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 C 300 Amg Line Edition De Auto

Mercedes Benz C 300 Amg Line Edition De Auto — Frequently Asked Questions

Common questions about the Mercedes Benz C 300 Amg Line Edition De Auto MOT and reliability.

What is the MOT pass rate for the Mercedes Benz C 300 Amg Line Edition De Auto?
The average MOT pass rate for the Mercedes Benz C 300 Amg Line Edition De Auto 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 C 300 Amg Line Edition De Auto?
The most common MOT failures on the Mercedes Benz C 300 Amg Line Edition De Auto are: The aim of a headlamp is not within limits laid down in the requirements (3.6%), Tyre tread depth not in accordance with the requirements (3.0%), A tyre cords visible or damaged (2.8%). These are the components most likely to cause an MOT failure.
Is the Mercedes Benz C 300 Amg Line Edition De Auto reliable?
With an average MOT pass rate of 86.6%, the Mercedes Benz C 300 Amg Line Edition De Auto 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 C 300 Amg Line Edition De Auto?
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 C 300 Amg Line Edition De Auto?
Typical mileage for the Mercedes Benz C 300 Amg Line Edition De Auto: 78,892 miles at 3 years. Use these benchmarks when evaluating a used C 300 Amg Line Edition De Auto to spot vehicles with unusually high or low mileage.

Check Your Mercedes Benz C 300 Amg Line Edition De Auto's MOT History

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

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