Mz Unknown (1986)
1986 Mz Unknown
CarHunch analysed 4,304 real MOT records for the 1986 Mz Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1986 MZ Unknown is exceptionally reliable, with a 90% first-time pass rate that significantly outperforms the UK average of 80%, and a virtually non-existent dangerous defect rate of just 0.1%. Across 4,304 vehicles tested, owners report zero average failures and zero average advisories per vehicle, suggesting these cars are either extremely well-maintained or remarkably durable.
The median mileage of 9,590 miles is unusually low for a 1986 model, which raises questions about whether these vehicles are genuinely low-use classics or whether the data reflects a specific subset of well-preserved examples rather than typical survivors from this era. Before purchasing, verify the actual mileage and full service history, as figures this clean warrant extra scrutiny to confirm authenticity.
What to check before buying a 1986 Mz Unknown
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Mz Unknown
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (100%) | 4,302 | 0.9% | 0 |
| Other (0%) | 1 | 100% | 0 |
| Diesel (0%) | 1 | 0% | 0 |
Mileage Distribution
Most 1986 Mz Unknown vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1986 Mz Unknown vehicles fall between 7,186 and 15,547 miles.
1986 Mz Unknown — Still on the Road
12 vehicles still getting MOTs in 2023 — 71% of the peak remain.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2019–2023.
MOT History Averages
Most Common MOT Issues — 1986 Mz Unknown
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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15.2%
Front Brake binding but not excessively
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10.9%
All direction indicators flashing more than 120 times a minute
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8.7%
Front Wheel bearing has slight play
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8.7%
Rear Brake indicates slight fluctuation of brake effort
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8.7%
Nearside Front Shock absorber has a light misting of oil
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8.7%
Rear Tyre worn close to the legal limit
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6.5%
Headlamp aim too low
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6.5%
Front Tyre worn close to the legal limit
Data covers a 3-year window centred on 1986. Counts include advisories and failures.
Found a specific Mz Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.