BMW 523 MOT Check

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

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79.1%

Avg Pass Rate

-10.8%

vs BMW Avg

Year Ranges

Good

Reliability

BMW 523 — MOT Reliability Overview

The BMW 523 has an average MOT pass rate of 79.1%, which is 10.8 percentage points below the BMW brand average of 89.9%. This is a reasonable result that reflects typical UK reliability standards. Regular servicing and addressing advisories promptly will help keep your 523 on the road.

The most common reasons a BMW 523 fails its MOT are a wheel with a loose or missing wheel nut, bolt or stud, parking brake efficiency below minimum requirement, steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc. If you are preparing your 523 for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

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

2016

Based on 43 vehicles

95.3%Excellent

BMW average: 89.9%

Dangerous Defects

2.5%

Retest Rate

5.0%

2013

Based on 71 vehicles

100.0%Excellent

BMW average: 89.9%

Dangerous Defects

0.0%

Mileage at 10yr

46k mi

2012

Based on 60 vehicles

93.3%Excellent

BMW average: 89.9%

Dangerous Defects

2.0%

Retest Rate

4.1%

2011

Based on 459 vehicles

81.5%Good

BMW average: 89.9%

Dangerous Defects

4.4%

Retest Rate

16.4%

2010

Based on 624 vehicles

78.8%Good

BMW average: 89.9%

Dangerous Defects

4.8%

Retest Rate

21.8%

2009

Based on 255 vehicles

80.0%Good

BMW average: 89.9%

Dangerous Defects

1.3%

Retest Rate

21.4%

2008

Based on 334 vehicles

76.6%Good

BMW average: 89.9%

Dangerous Defects

3.5%

Retest Rate

21.4%

2007

Based on 443 vehicles

72.9%Average

BMW average: 89.9%

Dangerous Defects

7.5%

Retest Rate

28.2%

2006

Based on 701 vehicles

76.6%Good

BMW average: 89.9%

Dangerous Defects

5.7%

Retest Rate

17.1%

2005

Based on 583 vehicles

73.8%Average

BMW average: 89.9%

Dangerous Defects

4.4%

Retest Rate

20.3%

2001

Based on 53 vehicles

92.5%Excellent

BMW average: 89.9%

Mileage at 10yr

198k mi

2000

Based on 711 vehicles

73.3%Average

BMW average: 89.9%

Dangerous Defects

3.8%

Retest Rate

17.8%

1999

Based on 1,192 vehicles

66.0%Average

BMW average: 89.9%

Dangerous Defects

2.6%

Retest Rate

22.9%

1998

Based on 949 vehicles

60.6%Below Average

BMW average: 89.9%

Dangerous Defects

3.7%

Retest Rate

30.1%

1997

Based on 345 vehicles

70.4%Average

BMW average: 89.9%

Dangerous Defects

2.7%

Retest Rate

21.5%

1996

Based on 148 vehicles

64.2%Below Average

BMW average: 89.9%

Dangerous Defects

3.7%

Retest Rate

31.5%

1995

Based on 84 vehicles

90.5%Excellent

BMW average: 89.9%

0

Based on 3,059 vehicles

76.9%Good

BMW average: 89.9%

Mileage at 5yr

116k mi

Top MOT Failures — BMW 523

The most common reasons a BMW 523 fails its MOT, aggregated across all year ranges.

A wheel with a loose or missing wheel nut, bolt or stud

6.9%

Parking brake efficiency below minimum requirement

4.7%

Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc

3.8%

The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired

3.6%

Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced

3.1%

BMW 523 Common Faults & Repair Costs

Where Failures Occur

The areas of the vehicle most commonly flagged during MOT inspections.

Rear Nearside

4.7%

Front

4.7%

Rear Offside

4.7%

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

BMW 523 — Frequently Asked Questions

Common questions about the BMW 523 MOT and reliability.

What is the MOT pass rate for the BMW 523?

The average MOT pass rate for the BMW 523 is 79.1% 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?

The most common MOT failures on the BMW 523 are: A wheel with a loose or missing wheel nut, bolt or stud (6.9%), Parking brake efficiency below minimum requirement (4.7%), Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc (3.8%). These are the components most likely to cause an MOT failure.

Is the BMW 523 reliable?

With an average MOT pass rate of 79.1%, the BMW 523 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 BMW 523?

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?

Typical mileage for the BMW 523: 46,003 miles at 10 years. Use these benchmarks when evaluating a used 523 to spot vehicles with unusually high or low mileage.

Check Your BMW 523's MOT History

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