Jaguar Sovereign (1987)
1987 Jaguar Sovereign
CarHunch analysed 105 real MOT records for the 1987 Jaguar Sovereign. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1987 Jaguar Sovereign has a first-time MOT pass rate of just 24%, nearly three times worse than the UK average of 80%, making it a notably unreliable prospect for buyers. With one in ten examples having recorded dangerous defects, reliability issues here go beyond minor wear and tear.
These Sovereigns are averaging around 74,000 miles, which is actually low for 37-year-old cars, yet they still rack up 0.68 failures and 1.8 advisories per test—suggesting the problem isn't heavy use but rather age and condition. If you're considering one, budget for immediate remedial work and have a pre-purchase inspection by a Jaguar specialist non-negotiable.
What to check before buying a 1987 Jaguar Sovereign
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 Jaguar Sovereign
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 (97%) | 102 | 24% | 0.67 |
| Diesel (2%) | 2 | 31.3% | 1.5 |
| LPG (1%) | 1 | 0% | 0 |
Mileage Distribution
Most 1987 Jaguar Sovereign 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 1987 Jaguar Sovereign vehicles fall between 51,017 and 92,247 miles.
MOT History Averages
Most Common MOT Issues — 1987 Jaguar Sovereign
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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66.9%
Parking brake: efficiency below requirements
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28.9%
Oil leak
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18.2%
Nearside Front Tyre worn close to the legal limit
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17.4%
Offside Front wheel bearing has slight play
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17.4%
Oil leak, but not excessive
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16.9%
Exhaust emissions carbon monoxide content excessive
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16.1%
Windscreen washer provides insufficient washer liquid
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15.3%
Nearside Rear Tyre worn close to the legal limit
Data covers a 3-year window centred on 1987. Counts include advisories and failures.
Found a specific Jaguar Sovereign?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.