1991 Jaguar Xjs: MOT pass rate and reliability
84.4% of 1991 Jaguar Xjs pass the MOT first time, measured across 231 DVSA tests on that model year alone. The average one had covered 81,677 miles.
How the 1991 compares
- Against all Jaguar Xjs (82.3%, 3,075 tests): +2.1 points
- Against all 1991 cars (75.1%): +9.3 points
- National first-time pass rate, all cars and years: 77%
Every Jaguar Xjs model year
Pass rates fall as cars age, so the only fair comparison for a 1991 car is other cars of the same age. The full run for the Jaguar Xjs:
| Year | Pass rate | Tests | Avg mileage |
|---|---|---|---|
| 1990 | 81.7% | 334 | 78,606 |
| 1991 | 84.4% | 231 | 81,677 |
| 1992 | 75.6% | 213 | 89,948 |
| 1993 | 81.9% | 299 | 95,095 |
| 1994 | 83.3% | 287 | 91,459 |
| 1995 | 87.2% | 328 | 85,542 |
What this means if you are buying a 1991 Xjs
The 1991 is one of the stronger years for this model, passing 2.1 points more often than the Jaguar Xjs average. That is a point in its favour, though condition and service history still matter more than the model year. Check the exact car with the free MOT history checker before you buy, and run its VIN and mileage through our free VIN decoder and clocking check.
What a 35-year-old car fails on
A 1991 car is 35 years old now, and age drives the failure mix more than the badge does. Across all cars tested, these are the categories that actually cause failures:
- Lights and electrical: 10.36% of all cars tested
- Suspension: 8.65% of all cars tested
- Tyres: 6.23% of all cars tested
- Brakes: 6.1% of all cars tested
- Visibility: wipers, washers, glass: 4.65% of all cars tested
- Body, chassis and structure: 3.18% of all cars tested
That is above average, the point where suspension bushes, drop links and exhaust corrosion start showing up as advisories before they become failures. On a 1991 Jaguar Xjs the average at test was 81,677 miles, so treat anything far above that as a car that has worked harder than its peers, and anything far below as one worth checking for the faults that come from standing still.
The strongest year for this model is 1995 at 87.2%, and the weakest in our data is 1992 at 75.6%. That 11.6 point spread across the model's life is why comparing a 1991 car against a newer one tells you very little.
Nearby model years
- 1990 Jaguar Xjs - 81.7%
- 1992 Jaguar Xjs - 75.6%
- 1993 Jaguar Xjs - 81.9%
- 1994 Jaguar Xjs - 83.3%