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Mercedes 814d MOT Check

MOT pass rates, common failures, and reliability data for the Mercedes 814d. Check any 814d by registration number below.

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76.2%

Avg Pass Rate

-1.5%

vs Mercedes Avg

1

Year Ranges

Good

Reliability

Mercedes 814d — MOT Reliability Overview

The Mercedes 814d has an average MOT pass rate of 76.2%, which is 1.5 percentage points below the Mercedes brand average of 77.7%. This is a reasonable result that reflects typical UK reliability standards. Regular servicing and addressing advisories promptly will help keep your 814d on the road.

Before buying a used Mercedes 814d, 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 814d performs at MOT across different model years.

0

Based on 21 vehicles

76.2%Good
Mercedes average: 77.7%
Mileage at 5yr

150k mi

Other Mercedes Models

Compare MOT reliability across Mercedes models.

Mercedes 316cdi

94.7% pass rate

Mercedes 207d

71.4% pass rate

Mercedes Hymer

76.6% pass rate

Mercedes 609d

66.7% pass rate

Mercedes Ml 250

80.5% pass rate

Mercedes SLS

93.8% 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 814d

Mercedes 814d — Frequently Asked Questions

Common questions about the Mercedes 814d MOT and reliability.

What is the MOT pass rate for the Mercedes 814d?
The average MOT pass rate for the Mercedes 814d is 76.2% compared to the Mercedes average of 77.7%. 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 814d?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Mercedes 814d reliable?
With an average MOT pass rate of 76.2%, the Mercedes 814d is rated as "Good" 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 814d?
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 814d?
Typical mileage for the Mercedes 814d: 149,611 miles at 5 years. Use these benchmarks when evaluating a used 814d to spot vehicles with unusually high or low mileage.

Check Your Mercedes 814d's MOT History

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

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