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Mercedes 811d MOT Check

MOT pass rates, common failures, and reliability data for the Mercedes 811d. Check any 811d by registration number below.

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61.3%

Avg Pass Rate

-16.4%

vs Mercedes Avg

1

Year Ranges

Below Average

Reliability

Mercedes 811d — MOT Reliability Overview

The Mercedes 811d has an average MOT pass rate of 61.3%, which is 16.4 percentage points below the Mercedes brand average of 77.7%. This suggests the 811d can be more maintenance-intensive than average. Pay close attention to the common failure points listed below if you are considering buying one.

Before buying a used Mercedes 811d, 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 811d performs at MOT across different model years.

0

Based on 31 vehicles

61.3%Below Average
Mercedes average: 77.7%
Mileage at 5yr

154k 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 811d

Mercedes 811d — Frequently Asked Questions

Common questions about the Mercedes 811d MOT and reliability.

What is the MOT pass rate for the Mercedes 811d?
The average MOT pass rate for the Mercedes 811d is 61.3% 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 811d?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Mercedes 811d reliable?
With an average MOT pass rate of 61.3%, the Mercedes 811d is rated as "Below Average" for reliability. This is around average — regular maintenance is recommended to avoid common failure points.
How do I check the MOT history of a Mercedes 811d?
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 811d?
Typical mileage for the Mercedes 811d: 154,401 miles at 5 years. Use these benchmarks when evaluating a used 811d to spot vehicles with unusually high or low mileage.

Check Your Mercedes 811d's MOT History

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

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