BMW 523 I MOT Check

MOT pass rates, common failures, and reliability data for the BMW 523 I. Check any 523 I by registration number below.

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92.3%

Avg Pass Rate

+2.4%

vs BMW Avg

Year Ranges

Excellent

Reliability

BMW 523 I — MOT Reliability Overview

The BMW 523 I has an average MOT pass rate of 92.3%, which is 2.4 percentage points above the BMW brand average of 89.9%. This is a strong result, indicating that the 523 I is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used BMW 523 I, 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 523 I performs at MOT across different model years.

2010

Based on 58 vehicles

100.0%Excellent

BMW average: 89.9%

2008

Based on 59 vehicles

94.9%Excellent

BMW average: 89.9%

2007

Based on 88 vehicles

90.9%Excellent

BMW average: 89.9%

2006

Based on 112 vehicles

92.0%Excellent

BMW average: 89.9%

2005

Based on 103 vehicles

92.2%Excellent

BMW average: 89.9%

2000

Based on 59 vehicles

88.1%Excellent

BMW average: 89.9%

1999

Based on 84 vehicles

89.3%Excellent

BMW average: 89.9%

1998

Based on 108 vehicles

92.6%Excellent

BMW average: 89.9%

1997

Based on 121 vehicles

91.7%Excellent

BMW average: 89.9%

1996

Based on 69 vehicles

91.3%Excellent

BMW average: 89.9%

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 523 I

BMW 523 I — Frequently Asked Questions

Common questions about the BMW 523 I MOT and reliability.

What is the MOT pass rate for the BMW 523 I?

The average MOT pass rate for the BMW 523 I is 92.3% 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 523 I?

Check the detailed breakdown on this page for specific failure data by year range.

Is the BMW 523 I reliable?

With an average MOT pass rate of 92.3%, the BMW 523 I 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 523 I?

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 523 I?

Mileage data for the BMW 523 I is available in the detailed breakdown on this page.

Check Your BMW 523 I's MOT History

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