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1986 Vespa (douglas) Pk50s MOT Pass Rate

Pass rate for Pk50s models manufactured in 1986, based on 32 real MOT test results.

62.5%
Pass Rate
37.5%
Fail Rate
32
Total Tests
13,633
Avg Mileage

Data from official DVSA MOT testing records

1986 Vespa (douglas) Pk50s MOT Analysis

The 1986 Vespa (douglas) Pk50s has an MOT pass rate of 62.5% based on 32 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,633 miles on the odometer. With a 37.5% failure rate, the 1986 Pk50s is rated as "Average" for MOT reliability.

The leading cause of MOT failure for the 1986 Vespa (douglas) Pk50s is Motorcycle lamps and reflectors, responsible for 15.6% of failures. 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 range from £5–50. Identification of the vehicle is the second most common issue at 3.1%. Motorcycle structure and attachments follows at 3.1%.

⚠ Based on limited data (32 tests)

Top failures specific to 1986 models only. The overall Pk50s page may show different rankings.

What Fails Most

Motorcycle lamps and reflectors 15.6%
Identification of the vehicle 3.1%
Motorcycle structure and attachments 3.1%

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 Lamps And Reflectors15.6%5
2Identification Of The Vehicle3.1%1
3Motorcycle Structure And Attachments3.1%1

Failures per 10,000 Miles

avg. 13,633 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 lamps and reflectors11.46% per 10K miIdentification of the vehicle2.29% per 10K miMotorcycle structure and attachments2.29% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Motorcycle lamps and reflectors11.4615.6%5
Identification of the vehicle2.293.1%1
Motorcycle structure and attachments2.293.1%1

Mileage Statistics

13,633
Mean
13,216
Median
7,829
25th Percentile
17,156
75th Percentile
27.51% failures per 10K miles

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

About This Data

The 1986 Vespa (douglas) Pk50s has an MOT pass rate of 62.5% based on 32 tests — around the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 13,633 miles on the odometer. With a 37.5% failure rate, the 1986 Pk50s is rated as "Average" for MOT reliability.

If you own or are considering buying a 1986 Vespa (douglas) Pk50s, budget for potential repairs before each MOT. Before your MOT, pay particular attention to motorcycle lamps and reflectors: Walk around the car and check every light — 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. With relatively low average mileage of 13,633 miles, many of these vehicles are still in good mechanical condition.

Motorcycle lamps and reflectors — 15.6% of failures

Motorcycle lamps and reflectors issues account for 15.6% of MOT failures on 1986 Vespa (douglas) Pk50s 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: £5–50. Pre-MOT check: Walk around the car and check every light — 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.

Identification of the vehicle — 3.1% of failures

Identification of the vehicle issues account for 3.1% of MOT failures on 1986 Vespa (douglas) Pk50s 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.

Motorcycle structure and attachments — 3.1% of failures

Motorcycle structure and attachments issues account for 3.1% of MOT failures on 1986 Vespa (douglas) Pk50s 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.

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

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