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Mercury Grand Marquis MOT Check

MOT pass rates, common failures, and reliability data for the Mercury Grand Marquis. Check any Grand Marquis by registration number below.

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83.3%

Avg Pass Rate

-8.1%

vs Mercury Avg

1

Year Ranges

Good

Reliability

Mercury Grand Marquis — MOT Reliability Overview

The Mercury Grand Marquis has an average MOT pass rate of 83.3%, which is 8.1 percentage points below the Mercury brand average of 91.4%. This is a strong result, indicating that the Grand Marquis is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used Mercury Grand Marquis, 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 Mercury Grand Marquis performs at MOT across different model years.

0

Based on 12 vehicles

83.3%Good
Mercury average: 91.4%
Mileage at 5yr

97k mi

Other Mercury Models

Compare MOT reliability across Mercury models.

Mercury Unclassified

100.0% pass rate

Mercury Cougar

90.9% 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 Mercury Grand Marquis

Mercury Grand Marquis — Frequently Asked Questions

Common questions about the Mercury Grand Marquis MOT and reliability.

What is the MOT pass rate for the Mercury Grand Marquis?
The average MOT pass rate for the Mercury Grand Marquis is 83.3% compared to the Mercury average of 91.4%. 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 Mercury Grand Marquis?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Mercury Grand Marquis reliable?
With an average MOT pass rate of 83.3%, the Mercury Grand Marquis 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 Mercury Grand Marquis?
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 Mercury Grand Marquis?
Typical mileage for the Mercury Grand Marquis: 97,286 miles at 5 years. Use these benchmarks when evaluating a used Grand Marquis to spot vehicles with unusually high or low mileage.

Check Your Mercury Grand Marquis's MOT History

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

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