At a Glance
The Jaguar X-type X400 has 11 identified problems that occur more often than the UK average, with Compression ignition emissions above threshold being the most reported. Suspension is the most common MOT failure category. The most serious issue flagged is Brake caliper fault, rated as dangerous. Based on 1.4M MOT tests from DVSA data.
Problems are patterns in the DVSA data that occur significantly more often on this model than the UK average — confirmed at 99% statistical confidence. Read how we calculate MOT pass rates and problems →
Below: the full MOT-data picture for the Jaguar X-type X400 — MOT pass rate vs the UK average, common problems vs UK fleet patterns, the most likely MOT failures by frequency, fault occurrence by mileage band, and pass/fail trends. All numbers drawn from DVSA records.
Jaguar X-type X400 MOT Pass Rate
Across 1.4M MOT tests from DVSA data, the Jaguar X-type X400 (2001–2009) has a fail rate of 34.5%.
UK average fail rate (2006–2009): 38.3%
Common Jaguar X-type X400 Problems
Owner-submitted reports plus patterns we've identified across 559 million UK MOT tests. Each MOT-derived item below — whether tagged as a Problem, Wear & Tear or Consumable — shows up noticeably more often on this generation than across the UK fleet, which is why it's here. Owner reports are pinned to the top by default; use the sort and filter pills below to view a specific tier or change the order.
Compression ignition emissions above threshold
7,052
occurrences
Brake caliper fault
3,855
occurrences
Brake performance below minimum
3,640
occurrences
Bonnet catch or hinge fault
1,178
occurrences
Wheel bearing worn
760
occurrences
Tell Us About Your Problem
Help other Jaguar X-type X400 owners — report a problem and we'll add it to the database
Tell Us About Your Problem
Help other Jaguar X-type X400 owners — report a problem and we'll add it to the database
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Problems by mileage
Common problems, MOT failures and advisories on the Jaguar X-type X400, grouped by the mileage they typically appear at.
893 distinct problems · 2,553,283 total occurrences in current filter
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Advisory items are MOT tester observations. Frequency can be influenced by driving style and usage patterns.
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Frequently Asked Questions
What are the most common Jaguar X-type X400 problems?
Based on DVSA MOT data for the Jaguar X-type X400 (2001–2009), we have identified 11 common problems. The most frequently reported is "Compression ignition emissions above threshold". Suspension is the most common MOT failure category.
How reliable is the Jaguar X-type X400?
This generation has 1.4M MOT tests on record with a 34.5% fail rate. A fault is flagged as a "Common Problem" only when it occurs significantly more often on this model than the UK average, confirmed at 99% statistical confidence.
What commonly fails the MOT on a Jaguar X-type X400?
There are 206 distinct MOT failure types recorded for the X400 (2001–2009), grouped by the mileage these failures typically occur. See the Common MOT Failures section on this page.
Can I report a problem with my Jaguar X-type X400?
Yes — use the "Tell Us About Your Problem" form on this page. Your report helps other Jaguar X-type owners spot problems early. All submissions are reviewed before being added to the public database.
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