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1985 BMW R100 MOT Pass Rate

Pass rate for R100 models manufactured in 1985, based on 81 real MOT test results.

80.2%
Pass Rate
19.8%
Fail Rate
81
Total Tests
43,363
Avg Mileage

Data from official DVSA MOT testing records

1985 BMW R100 MOT Analysis

The 1985 BMW R100 has an MOT pass rate of 80.2% based on 81 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 43,363 miles on the odometer. With a 19.8% failure rate, the 1985 R100 is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1985 BMW R100 is Motorcycle structure and attachments, responsible for 6.2% of failures. Motorcycle structure and attachments issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs range from £100–400. Motorcycle brakes is the second most common issue at 3.7%. Identification of the vehicle follows at 1.2%.

⚠ Based on limited data (81 tests)

Top failures specific to 1985 models only. The overall R100 page may show different rankings.

What Fails Most

Motorcycle structure and attachments 6.2%
Motorcycle brakes 3.7%
Identification of the vehicle 1.2%

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
1Motorcycle Structure And Attachments6.2%5
2Motorcycle Brakes3.7%3
3Identification Of The Vehicle1.2%1

Failures per 10,000 Miles

avg. 43,363 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.

Motorcycle structure and attachments1.42% per 10K miMotorcycle brakes0.85% per 10K miIdentification of the vehicle0.28% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle structure and attachments1.426.2%5
Motorcycle brakes0.853.7%3
Identification of the vehicle0.281.2%1

Mileage Statistics

43,363
Mean
44,173
Median
11,105
25th Percentile
74,831
75th Percentile
4.57% failures per 10K miles

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

About This Data

The 1985 BMW R100 has an MOT pass rate of 80.2% based on 81 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 43,363 miles on the odometer. With a 19.8% failure rate, the 1985 R100 is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1985 BMW R100, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle structure and attachments: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights. With relatively low average mileage of 43,363 miles, many of these vehicles are still in good mechanical condition.

Motorcycle structure and attachments — 6.2% of failures

Motorcycle structure and attachments issues account for 6.2% of MOT failures on 1985 BMW R100 models. Motorcycle structure and attachments issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.

Motorcycle brakes — 3.7% of failures

Motorcycle brakes issues account for 3.7% of MOT failures on 1985 BMW R100 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).

Identification of the vehicle — 1.2% of failures

Identification of the vehicle issues account for 1.2% of MOT failures on 1985 BMW R100 models. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.

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

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