JAGUAR XJ (2020)
Running costs, common problems, and reliability data based on 411 real MOT tests in 2024.
MOT Pass Rate
92%
Total Tests (2024)
411
Avg Mileage
32,227 mi
Est. Annual Cost
£1,690
Is the 2020 JAGUAR XJ reliable?
Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the JAGUAR brand average of 88%.
At 4 years old, 92% of JAGUAR XJs from 2020 passed their MOT first time in 2024. That's based on 411 tests across the UK. The average mileage at this age is 32,227 miles.
How does the 2020 JAGUAR XJ compare?
Mileage Analysis
The average 2020 JAGUAR XJ has 32,227 miles on the clock, which is in line with the expected 29,600 miles for a 4-year-old car, suggesting normal everyday use.
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 2020 sits between the two at 92%.
How much does a 2020 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 2020 JAGUAR XJ
The 2020 JAGUAR XJ is a premium performance with a 2993cc diesel engine. 411 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 2020, the average MOT pass rate is 92%, and this model falls short of that benchmark.
With an average of 32,227 miles at 4 years old, JAGUAR XJ owners drive about as much as the UK average.
2020 JAGUAR XJ Fuel Costs
The 2993cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year).
What does it cost to own a 2020 JAGUAR XJ?
Total estimated annual running cost is £1,690 (£141/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
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 2020 JAGUAR XJ
At 4 years old, the JAGUAR XJ offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2019 model has the highest pass rate at 94%.
Alternatives to the 2020 JAGUAR XJ
The JAGUAR XJ is actually the most reliable option among similar diesel premium performances from this era. Here are comparable diesel cars with similar engines:
- MERCEDES E (2019) 90% pass rate (-2%) from 41,000 tests
- MERCEDES GLC (2018) 91% pass rate (-1%) from 40,494 tests
- FORD RANGER (2019) 87% pass rate (-5%) from 32,194 tests
- LAND ROVER RANGE ROVER VELAR (2018) 91% pass rate (-1%) from 29,640 tests