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1979 BMW R100rt MOT Pass Rate

Pass rate for R100rt models manufactured in 1979, based on 127 real MOT test results.

87.4%
Pass Rate
12.6%
Fail Rate
127
Total Tests
50,655
Avg Mileage

Data from official DVSA MOT testing records

1979 BMW R100rt MOT Analysis

The 1979 BMW R100rt has an MOT pass rate of 87.4% based on 127 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,655 miles on the odometer. With a 12.6% failure rate, the 1979 R100rt is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 1979 BMW R100rt is Motorcycle lighting and signalling, responsible for 3.9% of failures. Motorcycle lighting and signalling 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 reg plates and vin is the second most common issue at 0.8%.

Top failures specific to 1979 models only. The overall R100rt page may show different rankings.

What Fails Most

Motorcycle lighting and signalling 3.9%
Motorcycle reg plates and vin 0.8%

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 Lighting And Signalling3.9%5
2Motorcycle Reg Plates And Vin0.8%1

Failures per 10,000 Miles

avg. 50,655 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 lighting and signalling0.78% per 10K miMotorcycle reg plates and vin0.16% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle lighting and signalling0.783.9%5
Motorcycle reg plates and vin0.160.8%1

Mileage Statistics

50,655
Mean
54,654
Median
16,115
25th Percentile
81,796
75th Percentile
2.49% failures per 10K miles

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

About This Data

The 1979 BMW R100rt has an MOT pass rate of 87.4% based on 127 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 50,655 miles on the odometer. With a 12.6% failure rate, the 1979 R100rt is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 1979 BMW R100rt, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to motorcycle lighting and signalling: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights. At 50,655 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Motorcycle lighting and signalling — 3.9% of failures

Motorcycle lighting and signalling issues account for 3.9% of MOT failures on 1979 BMW R100rt models. Motorcycle lighting and signalling 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 reg plates and vin — 0.8% of failures

Motorcycle reg plates and vin issues account for 0.8% of MOT failures on 1979 BMW R100rt models. Motorcycle reg plates and vin 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.

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

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