2004 Jaguar XJ 3.0L Petrol · RJ04 THN
2004 Jaguar XJ (3.0L, petrol). First registered 29 Mar 2004. Recorded mileage 123,495 miles. MOT valid until 29 Jan 2027.
- Make & Model
- JAGUAR XJ
- Year / Origin
- 2004 · Reading
- Safety Recall
- Unknown
- MOT Status
- Valid until 29 Jan 2027
- Road Tax
- —
- Recorded Mileage
- 123,495 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 3.0L
- Reliability Guide
- Common Faults
RJ04 THN Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 30/01/2026
- 123,495 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
- Recurring brakes items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
MOT Roadworthiness: Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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Known faults for Jaguar Jaguar XJ (X350/X351)
Our database tracks 5 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
RJ04 THN Mileage History
- 24/05/2022109,411 mi
- 20/04/2023118,491 mi+9,080 mi
- 02/10/2024122,589 mi+4,098 mi
- 09/01/2026123,482 mi+893 mi
- 30/01/2026123,495 mi+13 mi
Average of roughly 3,819 miles per year across 5 recorded odometer readings.
RJ04 THN MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2004 Jaguar Xj (RJ04 THN) between May 2022 and January 2026.
The record contains 4 passes and 1 failure.
The most recent test on 30 January 2026 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Brakes (2 issues), Suspension (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 3 advisory notices are recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
Recorded failure items include: “Offside Front Brake pipe leaking on a hydraulic braking system inner wing (1.1.11 (b) (ii))”; “Nearside Front Suspension system inoperative (5.3.5 (a))”.
Common Problems: JAGUAR XJ
Known issues reported by owners and MOT testers.
- Air Suspension Failure(Serious)
Air struts leak or the compressor fails to reach pressure, leaving the car "slammed" on its bump stops.
- Aluminum Corrosion (X350)(Moderate)
Although it won’t rust like steel, the X350 suffers from galvanic corrosion, appearing as bubbling paint around the wheel arches and boot lid.
- ZF Gearbox Surging & Lurch(Moderate)
The ZF six-speed automatic gearbox can develop surging on light throttle at 30-50mph and harsh lurching into gear when coming to a stop. This is typically caused by torque converter clutch issues or outdated TCM software and can often be resolved with a software reflash and fresh fluid.
- Door Lock & Window Regulator Failures(Moderate)
The door lock actuators and window regulators are common failure points on the X350. Lock failures can leave doors stuck in the double-locked position, while window regulators fail with the cable-driven mechanism snapping or the motor burning out.
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JAGUAR XJ Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
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Historical MOT pass rates and DVLA records for 2004 model year cars.
- Air Suspension FailureSerious
Air struts leak or the compressor fails to reach pressure, leaving the car "slammed" on its bump stops.
- Aluminum Corrosion (X350)Moderate
Although it won’t rust like steel, the X350 suffers from galvanic corrosion, appearing as bubbling paint around the wheel arches and boot lid.
- ZF Gearbox Surging & LurchModerate
The ZF six-speed automatic gearbox can develop surging on light throttle at 30-50mph and harsh lurching into gear when coming to a stop. This is typically caused by torque converter clutch issues or outdated TCM software and can often be resolved with a software reflash and fresh fluid.
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