JAGUAR XJ (1999)
Running costs, common problems, and reliability data based on 1,298 real MOT tests in 2024.
MOT Pass Rate
77%
Total Tests (2024)
1,298
Avg Mileage
91,922 mi
Est. Annual Cost
£2,397
Is the 1999 JAGUAR XJ reliable?
Average reliability. Expect some repairs as it ages. That's close to the national average of 82%. It falls below the JAGUAR brand average of 88%.
At 25 years old, 77% of JAGUAR XJs from 1999 passed their MOT first time in 2024. That's based on 1,298 tests across the UK. The average mileage at this age is 91,922 miles.
How does the 1999 JAGUAR XJ compare?
Mileage Analysis
The average 1999 JAGUAR XJ has 91,922 miles on the clock, which is significantly below the expected 185,000 miles for a 25-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
Best year to buy a JAGUAR XJ?
The most reliable year is the 2019 model with a 94% MOT pass rate, while the 2002 model has the lowest at 77%. The 1999 sits between the two at 77%.
How much does a 1999 JAGUAR XJ cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
JAGUAR XJ by Year
| Year | Pass Rate | Tests | Avg Mileage |
|---|---|---|---|
| 2020 | 92% | 411 | 32,227 mi |
| 2019 | 94% | 1,023 | 35,571 mi |
| 2018 | 93% | 1,682 | 44,709 mi |
| 2017 | 93% | 2,143 | 54,518 mi |
| 2016 | 91% | 2,811 | 64,986 mi |
| 2015 | 91% | 2,316 | 67,462 mi |
| 2014 | 89% | 2,511 | 81,854 mi |
| 2013 | 87% | 2,758 | 93,880 mi |
| 2012 | 89% | 2,482 | 93,337 mi |
| 2011 | 84% | 4,043 | 100,648 mi |
| 2010 | 84% | 3,442 | 107,407 mi |
| 2009 | 85% | 1,332 | 97,971 mi |
| 2008 | 82% | 2,030 | 101,627 mi |
| 2007 | 82% | 2,721 | 103,444 mi |
| 2006 | 82% | 2,874 | 103,550 mi |
| 2005 | 80% | 2,105 | 106,159 mi |
| 2004 | 78% | 3,267 | 108,216 mi |
| 2003 | 81% | 3,134 | 110,063 mi |
| 2002 | 77% | 955 | 92,681 mi |
| 2001 | 79% | 972 | 91,862 mi |
| 2000 | 78% | 888 | 90,401 mi |
| 1999 | 77% | 1,298 | 91,922 mi |
| 1998 | 77% | 2,154 | 92,573 mi |
| 1997 | 80% | 2,029 | 105,434 mi |
| 1996 | 82% | 1,861 | 104,724 mi |
| 1995 | 79% | 1,401 | 101,040 mi |
| 1994 | 86% | 635 | 87,486 mi |
| 1993 | 82% | 401 | 88,629 mi |
| 1992 | 82% | 328 | 89,641 mi |
| 1991 | 82% | 243 | 95,193 mi |
| 1990 | 86% | 282 | 83,101 mi |
Checking a specific JAGUAR XJ?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 1999 JAGUAR XJ
The 1999 JAGUAR XJ is a premium performance with a 3248cc petrol engine. 1,298 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 1999, the average MOT pass rate is 75%, and this model beats that benchmark.
With an average of 91,922 miles at 25 years old, JAGUAR XJ owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
1999 JAGUAR XJ Fuel Costs
The 3248cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 1999 JAGUAR XJ?
Total estimated annual running cost is £2,397 (£200/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 77% pass rate. Keeping on top of servicing will help avoid surprises.
JAGUAR XJ Reliability Trend
Newer JAGUAR XJs show better MOT pass rates than older ones, with an average improvement of 7 percentage points.
Buying a Used 1999 JAGUAR XJ
At 25 years old, the JAGUAR XJ is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2019 model has the highest pass rate at 94%.
Alternatives to the 1999 JAGUAR XJ
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- BMW 3 SERIES (2001) 77% pass rate (same) from 9,406 tests
- BMW Z3 (1999) 78% pass rate (+1%) from 8,191 tests
- PORSCHE BOXSTER (2001) 83% pass rate (+6%) from 4,134 tests
- PORSCHE 911 (1999) 87% pass rate (+10%) from 3,668 tests