2001 BMW 523 MOT Pass Rate
Pass rate for 523 models manufactured in 2001, based on 304 real MOT test results.
Data from official DVSA MOT testing records
This page shows all 523 cars tested in 2001. Want to see how cars built in 2001 hold up over time?
View 2001 BMW 523 vintage page → (43.2% current pass rate)2001 BMW 523 MOT Analysis
The 2001 BMW 523 has an MOT pass rate of 53.6% based on 304 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 119,079 miles on the odometer. With a 46.4% failure rate, the 2001 523 is rated as "Poor" for MOT reliability.
The leading cause of MOT failure for the 2001 BMW 523 is Seat belts and supplementary restraint systems, responsible for 2.0% of failures. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs range from £50–200 per belt. Brakes is the second most common issue at 1.0%. Noise, emissions and leaks follows at 0.7%.
Top failures specific to 2001 models only. The overall 523 page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Seat Belts And Supplementary Restraint Systems | 2.0% | 6 |
| 2 | Brakes | 1.0% | 3 |
| 3 | Noise, Emissions And Leaks | 0.7% | 2 |
| 4 | Tyres | 0.7% | 2 |
| 5 | Lamps, Reflectors And Electrical Equipment | 0.7% | 2 |
Failures per 10,000 Miles
avg. 119,079 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Seat Belts | 0.17 | 2.0% | 6 |
| Brakes | 0.08 | 1.0% | 3 |
| Noise, emissions and leaks | 0.06 | 0.7% | 2 |
| Tyres | 0.06 | 0.7% | 2 |
| Lamps & Electrical | 0.06 | 0.7% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2001 BMW 523 has an MOT pass rate of 53.6% based on 304 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 119,079 miles on the odometer. With a 46.4% failure rate, the 2001 523 is rated as "Poor" for MOT reliability.
If you own or are considering buying a 2001 BMW 523, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to seat belts and supplementary restraint systems: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard. With an average mileage of 119,079 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Seat belts and supplementary restraint systems — 2.0% of failures
Seat belts and supplementary restraint systems issues account for 2.0% of MOT failures on 2001 BMW 523 models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Brakes — 1.0% of failures
Brakes issues account for 1.0% of MOT failures on 2001 BMW 523 models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Noise, emissions and leaks — 0.7% of failures
Noise, emissions and leaks issues account for 0.7% of MOT failures on 2001 BMW 523 models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.