1977 Jaguar XJ — MOT History by Age
How cars manufactured in 1977 perform at MOT as they age
Data from official DVSA MOT testing records
Insufficient data for same-age comparison.
How This Car Ages
Pass rate progression for the 1977 Jaguar XJ as it ages.
Bar chart showing pass rate by car age from 45 to 47 years
📊 View as table
| Age | Pass Rate | Tests |
|---|---|---|
| 45 yrs | 93.3% | 30 |
| 46 yrs | 80.6% | 31 |
| 47 yrs | 88.1% | 42 |
Pass Rate Trend
How the 1977 Jaguar XJ pass rate changes as it ages, from first MOT to most recent.
Trend shows declining over 3 years
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| Built | Pass Rate | Tests |
|---|---|---|
| 2024 (47 yrs) | 88.1% | 42 |
| 2023 (46 yrs) | 80.6% | 31 |
| 2022 (45 yrs) | 93.3% | 30 |
Year-by-Year MOT Results
Common MOT Failures
Top failure categories across all test years for 1977 Jaguar XJ, with age trends.
How Failures Change With Age
Comparing failure rates between the youngest and oldest test years.
| Category | At Youngest | At Oldest | Change | Trend |
|---|---|---|---|---|
| Noise, emissions and leaks | 3.3% (45 yrs) | 14.3% (47 yrs) | +11.0%
| 🔴 ↑ |
| Suspension | 10.0% (45 yrs) | 7.1% (47 yrs) | -2.9%
| 🟢 ↓ |
| Brakes | 3.3% (45 yrs) | 2.4% (47 yrs) | -0.9%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the Jaguar XJ page →
About This Data
This page shows how Jaguar XJ cars manufactured in 1977 perform at MOT as they age. Data spans from 2022 to 2024, covering 103 tests. Pass rates naturally decline with age as components wear.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.