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Leyland Daf 400 Series Diesel MOT Check

MOT pass rates, common failures, and reliability data for the Leyland Daf 400 Series Diesel. Check any 400 Series Diesel by registration number below.

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74.2%

Avg Pass Rate

+0.2%

vs Leyland Daf Avg

1

Year Ranges

Average

Reliability

Leyland Daf 400 Series Diesel — MOT Reliability Overview

The Leyland Daf 400 Series Diesel has an average MOT pass rate of 74.2%, which is 0.2 percentage points above the Leyland Daf brand average of 74.0%. This is a reasonable result that reflects typical UK reliability standards. Regular servicing and addressing advisories promptly will help keep your 400 Series Diesel on the road.

Before buying a used Leyland Daf 400 Series Diesel, 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 Leyland Daf 400 Series Diesel performs at MOT across different model years.

0

Based on 31 vehicles

74.2%Average
Leyland Daf average: 74.0%
Mileage at 5yr

97k mi

Other Leyland Daf Models

Compare MOT reliability across Leyland Daf models.

Leyland Daf Fa 45.150

60.7% pass rate

Leyland Daf 400 Series Diesel Turbo

65.0% pass rate

Leyland Daf T244

100.0% pass rate

Leyland Daf Fa 45.130

76.9% pass rate

Leyland Daf Unclassified

90.3% pass rate

Leyland Daf 200 Series Diesel

64.7% 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 Leyland Daf 400 Series Diesel

Leyland Daf 400 Series Diesel — Frequently Asked Questions

Common questions about the Leyland Daf 400 Series Diesel MOT and reliability.

What is the MOT pass rate for the Leyland Daf 400 Series Diesel?
The average MOT pass rate for the Leyland Daf 400 Series Diesel is 74.2% compared to the Leyland Daf average of 74.0%. 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 Leyland Daf 400 Series Diesel?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Leyland Daf 400 Series Diesel reliable?
With an average MOT pass rate of 74.2%, the Leyland Daf 400 Series Diesel is rated as "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 Leyland Daf 400 Series Diesel?
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 Leyland Daf 400 Series Diesel?
Typical mileage for the Leyland Daf 400 Series Diesel: 96,803 miles at 5 years. Use these benchmarks when evaluating a used 400 Series Diesel to spot vehicles with unusually high or low mileage.

Check Your Leyland Daf 400 Series Diesel's MOT History

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

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