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1997 BMW 520i Se Auto MOT Pass Rate

Pass rate for 520i Se Auto models manufactured in 1997, based on 379 real MOT test results.

46.4%
Pass Rate
53.6%
Fail Rate
379
Total Tests
126,450
Avg Mileage

Data from official DVSA MOT testing records

This page shows all 520i Se Auto cars tested in 1997. Want to see how cars built in 1997 hold up over time?

View 1997 BMW 520i Se Auto vintage page โ†’ (45.2% current pass rate)

1997 BMW 520i Se Auto MOT Analysis

The 1997 BMW 520i Se Auto has an MOT pass rate of 46.4% based on 379 tests โ€” significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 126,450 miles on the odometer. With a 53.6% failure rate, the 1997 520i Se Auto is rated as "Very Poor" for MOT reliability.

The leading cause of MOT failure for the 1997 BMW 520i Se Auto is Brakes, responsible for 1.8% of failures. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components โ€” any brake deficiency will result in an MOT fail. Typical repair costs range from ยฃ150โ€“400. Lamps, Reflectors and Electrical Equipment is the second most common issue at 1.1%. Suspension follows at 1.1%.

Top failures specific to 1997 models only. The overall 520i Se Auto page may show different rankings.

What Fails Most

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Brakes1.8%7
2Lamps, Reflectors And Electrical Equipment1.1%4
3Suspension1.1%4
4Tyres0.5%2
5Seat Belts And Supplementary Restraint Systems0.3%1
6Steering0.3%1
7Body, Structure And General Items0.3%1
8Driver's View Of The Road0.3%1
9Non-component Advisories0.3%1

Failures per 10,000 Miles

avg. 126,450 mi

For 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.

Brakes0.15% per 10K miLamps & Electrical0.08% per 10K miSuspension0.08% per 10K miTyres0.04% per 10K miSeat Belts0.02% per 10K miSteering0.02% per 10K miBody & Structure0.02% per 10K miVisibility0.02% per 10K miNon-component advisories0.02% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Brakes0.151.8%7
Lamps & Electrical0.081.1%4
Suspension0.081.1%4
Tyres0.040.5%2
Seat Belts0.020.3%1
Steering0.020.3%1
Body & Structure0.020.3%1
Visibility0.020.3%1
Non-component advisories0.020.3%1

Mileage Statistics

126,450
Mean
136,821
Median
99,810
25th Percentile
176,874
75th Percentile
4.24% failures per 10K miles

Mileage-adjusted failure rate โ€” accounts for how much this model year is typically driven.

About This Data

The 1997 BMW 520i Se Auto has an MOT pass rate of 46.4% based on 379 tests โ€” significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 126,450 miles on the odometer. With a 53.6% failure rate, the 1997 520i Se Auto is rated as "Very Poor" for MOT reliability.

If you own or are considering buying a 1997 BMW 520i Se Auto, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to brakes: Listen for squealing or grinding noises. Check brake pedal feel โ€” 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). With an average mileage of 126,450 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.

Brakes โ€” 1.8% of failures

Brakes issues account for 1.8% of MOT failures on 1997 BMW 520i Se Auto models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components โ€” any brake deficiency will result in an MOT fail. Typical repair costs: ยฃ150โ€“400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel โ€” 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).

Lamps, Reflectors and Electrical Equipment โ€” 1.1% of failures

Lamps, Reflectors and Electrical Equipment issues account for 1.1% of MOT failures on 1997 BMW 520i Se Auto models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: ยฃ5โ€“50. Pre-MOT check: Walk around the car and check every light โ€” headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.

Suspension โ€” 1.1% of failures

Suspension issues account for 1.1% of MOT failures on 1997 BMW 520i Se Auto models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: ยฃ200โ€“500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.

Based on DVSA anonymised MOT test data (2005โ€“2024). Crown copyright, Open Government Licence v3.0.

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