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BMW 420d MOT Check

MOT pass rates, common failures, and reliability data for the BMW 420d. Check any 420d by registration number below.

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97.4%

Avg Pass Rate

+7.5%

vs BMW Avg

4

Year Ranges

Excellent

Reliability

BMW 420d — MOT Reliability Overview

The BMW 420d has an average MOT pass rate of 97.4%, which is 7.5 percentage points above the BMW brand average of 89.9%. This is a strong result, indicating that the 420d is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used BMW 420d, 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 BMW 420d performs at MOT across different model years.

2017

Based on 89 vehicles

100.0%Excellent
BMW average: 89.9%

2016

Based on 106 vehicles

97.2%Excellent
BMW average: 89.9%
Mileage at 10yr

200k mi

2015

Based on 152 vehicles

94.7%Excellent
BMW average: 89.9%
Mileage at 10yr

172k mi

2014

Based on 208 vehicles

97.6%Excellent
BMW average: 89.9%
Mileage at 5yr

80k mi

Mileage at 10yr

164k mi

Other BMW Models

Compare MOT reliability across BMW models.

BMW 420d Xdrive M Sport Mhev Auto

90.4% pass rate

BMW X2 Sdrive18d Sport

87.3% pass rate

BMW X2 Sdrive18d M Sport X Auto

87.0% pass rate

BMW 550

82.4% pass rate

BMW 316 I

89.0% pass rate

BMW 540i Xdrive M Sport Mhev Auto

75.6% 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 BMW 420d

BMW 420d — Frequently Asked Questions

Common questions about the BMW 420d MOT and reliability.

What is the MOT pass rate for the BMW 420d?
The average MOT pass rate for the BMW 420d is 97.4% compared to the BMW average of 89.9%. 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 BMW 420d?
Check the detailed breakdown on this page for specific failure data by year range.
Is the BMW 420d reliable?
With an average MOT pass rate of 97.4%, the BMW 420d 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 BMW 420d?
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 BMW 420d?
Typical mileage for the BMW 420d: 199,901 miles at 10 years. Use these benchmarks when evaluating a used 420d to spot vehicles with unusually high or low mileage.

Check Your BMW 420d's MOT History

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

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