What year Jaguar Xj is most reliable?

Based on MOT first-test pass rates, the 2020 Jaguar Xj has the highest pass rate at 94.1%, out of 163 vehicles tested.

What are the most common Jaguar Xj MOT failures?

The most common Jaguar Xj MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Jaguar Xj — Reliability by Year

77,959 vehicles · MOT data 1981–2020 · first-test pass rates

This page shows MOT first-test pass rates for each year the Jaguar Xj was manufactured — click any year to explore that cohort in detail. Trying to decide which year to buy? See the full buying guide →

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Best pass rate year

2020

94.1% pass rate · 163 vehicles

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Lowest pass rate year

1989

66.1% pass rate · 2,333 vehicles

Year	Pass rate	Avg mileage	Vehicles
2020	94.1%	26,366 mi	163
2019	93.0%	25,690 mi	418
2018	92.3%	32,955 mi	666
2017	91.6%	39,351 mi	899
2016	89.8%	45,584 mi	1,112
2015	88.1%	48,377 mi	1,002
2014	86.1%	56,476 mi	1,094
2013	85.0%	62,215 mi	1,262
2012	85.6%	65,503 mi	1,168
2011	84.9%	69,807 mi	1,827
2010	84.5%	71,030 mi	1,699
2009	82.2%	64,372 mi	731
2008	82.2%	69,636 mi	1,164
2007	80.6%	74,841 mi	1,700
2006	80.1%	75,361 mi	2,020
2005	80.2%	76,347 mi	1,682
2004	79.5%	78,339 mi	2,556
2003	79.5%	81,098 mi	3,100
2002	79.8%	76,427 mi	1,718
2001	80.0%	81,712 mi	2,319
2000	77.3%	85,295 mi	2,558
1999	75.4%	89,896 mi	3,250
1998	75.4%	93,672 mi	6,358
1997	75.0%	103,591 mi	5,344
1996	75.1%	110,393 mi	5,575
1995	74.0%	115,202 mi	5,849
1994	72.1%	113,656 mi	4,159
1993	69.3%	116,893 mi	3,325
1992	70.2%	122,522 mi	2,596
1991	68.6%	119,939 mi	1,861
1990	68.5%	117,774 mi	2,672
1989	66.1%	106,861 mi	2,333
1988	67.5%	98,389 mi	1,389
1987	67.3%	89,224 mi	552
1986	68.2%	87,368 mi	423
1985	69.6%	82,635 mi	450
1984	69.1%	84,494 mi	379
1983	69.7%	78,735 mi	251
1982	72.3%	69,463 mi	204
1981	72.6%	60,338 mi	131

Which year Jaguar Xj is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests. Green = noticeably above average for this model; red = noticeably below average.

Tests range from an average of 25,690 miles (newest year) to 122,522 miles (oldest year). Older years naturally accumulate more tests at higher mileages — see the mileage-normalised breakdown →

Trying to decide which year to buy?

We've done the full analysis — which years to look for, which to avoid, and where to find the best value for reliability on a Jaguar Xj.

See the buying guide →

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