What year Jaguar Xj6 Auto is most reliable?

Based on MOT first-test pass rates, the 1990 Jaguar Xj6 Auto has the highest pass rate at 100.0%, out of 963 vehicles tested.

What are the most common Jaguar Xj6 Auto MOT failures?

The most common Jaguar Xj6 Auto MOT failures vary by year. Check the individual year pages for detailed defect breakdowns — links in the table above.

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Jaguar Xj6 Auto — Reliability by Year

8,661 vehicles · MOT data 1986–1996 · first-test pass rates

This page shows MOT first-test pass rates for each year the Jaguar Xj6 Auto 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

1990

100.0% pass rate · 963 vehicles

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Lowest pass rate year

1996

78.5% pass rate · 106 vehicles

Year	Pass rate	Avg mileage	Vehicles
1996	78.5%	127,868 mi	106
1995	90.3%	91,220 mi	262
1990	100.0%	111,038 mi	963
1989	100.0%	26,100 mi	1,759
1988	—	—	2,670
1987	—	—	2,506
1986	—	—	395

Which year Jaguar Xj6 Auto is most reliable?

MOT pass rate by year of manufacture — averaged across each vehicle's lifetime of tests.

Tests range from an average of 26,100 miles (newest year) to 127,868 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 Xj6 Auto.

See the buying guide →

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Check any UK registration — free MOT history and risk insights.