Jaguar Unknown (2018)
2018 Jaguar Unknown
CarHunch analysed 489 real MOT records for the 2018 Jaguar Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2018 Jaguar cohort is in serious trouble: a 6.5% first-time pass rate versus the UK average of 80% signals fundamental reliability problems, and the electric variants are worst hit at just 0.5% passing compared to petrol's 10.1%. Dangerous defects are rare at 1.4%, but the overall failure rate tells the real story—these cars are struggling badly in MOT testing.
The median mileage of just 6,038 miles is suspiciously low for a 2018 model, suggesting many vehicles may be off the road or in early life, yet even so they're still failing MOTs at an alarming rate. With an average of 0.05 failures and 0.3 advisories per vehicle, the issue appears systemic rather than wear-related, pointing to design or manufacturing defects that affect the fleet early on. If you're considering one of these, getting a pre-purchase inspection from a Jaguar specialist is non-negotiable—the data suggests these cars need serious scrutiny before purchase.
What to check before buying a 2018 Jaguar 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 Jaguar 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 |
|---|---|---|---|
| Electric (41%) | 201 | 0.5% | 0 |
| Petrol (38%) | 187 | 10.1% | 0.06 |
| Diesel (15%) | 73 | 16.3% | 0.21 |
| Hybrid Electric (Clean) (6%) | 28 | 0% | 0 |
Mileage Distribution
Most 2018 Jaguar 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 2018 Jaguar Unknown vehicles fall between 6,038 and 6,038 miles.
2018 Jaguar Unknown — Still on the Road
Strong survival — 30 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.
MOT History Averages
Most Common MOT Issues — 2018 Jaguar 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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56.8%
COVID-19 6 MONTH EXTENSION
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16.8%
Offside Rear Tyre worn close to legal limit/worn on edge
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16%
Rear Brake pad(s) wearing thin
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12%
Nearside Rear Tyre worn close to legal limit/worn on edge
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12%
Front Brake disc worn, pitted or scored, but not seriously weakened
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12%
Offside Front Tyre worn close to legal limit/worn on edge
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11.2%
Rear Brake disc worn, pitted or scored, but not seriously weakened
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11.2%
Nearside Front Tyre worn close to legal limit/worn on edge
Data covers a 3-year window centred on 2018. Counts include advisories and failures.
Found a specific Jaguar Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.