Jaguar Xk8 MOT Failures
An analysis of 93,132 real DVSA MOT tests on the Jaguar Xk8 — what fails, how often, and how that compares to every other car on UK roads. Generations covered: X100 (1996–2005).
Where the Jaguar Xk8 fails its MOT
The single biggest MOT failure point on the Jaguar Xk8 is abs fault — this model is 34 times more likely to fail on this item than the average car on UK roads. That makes it a significant weak point for anyone buying or owning this model. Across 93,132 MOT tests, 6.28% of all Jaguar Xk8 tests recorded this as a failure.
Suspension failures typically mean worn bushes, drop links, or dampers. These affect handling and tyre wear. Budget £150–£400 per corner at an independent garage for full suspension overhaul.
Other notable weak points include transmission joint, belt or chain worn (711x the fleet average), subframe bushes or mounts worn (18x the fleet average), indicator or hazard warning switch does not ope... (74x the fleet average), and emissions failure (24x the fleet average). These ratios compare the Jaguar Xk8's failure rate on each item against the national average for all cars tested — a ratio of 10x means this model fails ten times more often than a typical car.
The failures span 4 categories: Suspension, Bodywork, Lights & Electrics, Exhaust & Emissions. If you're inspecting a Jaguar Xk8 before purchase, these are the areas to focus on — and if any have been flagged as advisories on a previous MOT, they're likely to become failures in the near future.
How failures change with mileage
The Jaguar Xk8's weak points shift as the car covers more miles. Understanding these patterns helps you know what to expect — and what to budget for — at each stage of ownership.
Under 60,000 miles
At this mileage, most failures are either design-related or caused by age rather than wear. Components like bushes and drop links may not have been replaced yet, and original-fit parts can deteriorate even on low-mileage cars that spend a lot of time sitting.
For the Jaguar Xk8 specifically, the DVSA data shows the most common failures at this mileage are transmission joint, belt or chain worn (711x the average) and structural corrosion (67x). wheel bearings worn (34x) and abs fault (34x) also appear frequently.
60,000 to 100,000 miles
This is where routine wear items start to show up. Brake components, tyres, and exhaust parts have done serious work by this point. Cars that have been well serviced will show fewer of these failures — this mileage band is where good maintenance really separates the well-kept from the neglected.
For the Jaguar Xk8 specifically, the DVSA data shows the most common failures at this mileage are transmission joint, belt or chain worn (112x the average) and floor deteriorated or insecure (92x). transmission shaft flexible coupling deteriorated (80x) and headlight fault (55x) also appear frequently.
Over 100,000 miles
High-mileage cars accumulate failures across multiple systems. The key question isn't whether things will need doing — they will — but whether the car has been maintained well enough to keep on top of them. Look for a consistent service history and recent MOT passes with minimal advisories.
For the Jaguar Xk8 specifically, the DVSA data shows the most common failures at this mileage are floor deteriorated or insecure (152x the average) and indicator or hazard warning switch does not ope... (62x). transmission joint, belt or chain worn (50x) and abs fault (22x) also appear frequently.
The shift from transmission joint, belt or chain worn at lower mileages to floor deteriorated or insecure at higher mileages is typical — early failures tend to be design or factory-related, while high-mileage failures reflect accumulated mechanical wear. A car that's been well maintained will usually dodge the worst of both.
Known issues beyond the MOT
An MOT only tests roadworthiness at a single point in time — it won't catch developing faults, intermittent problems, or issues that haven't yet reached the failure threshold. These are the issues that Jaguar Xk8 specialists and owners flag most frequently, drawn from manufacturer technical bulletins, workshop data, and verified owner reports.
Structural corrosion compromising rigidity (X100) Dangerous
The XK8 suffers from severe structural corrosion that compromises the rigidity of the body assembly. Affects X100; typical independent garage repair cost is £3,000–£8,000.
Subframe mounting point corrosion (X100) Dangerous
The XK8 experiences severe corrosion at subframe and suspension mounting points, failing MOT tests at 32.5 times the national fleet average. Affects X100; typical independent garage repair cost is £2,500–£6,000.
Transmission chain excessive wear (X100) Major
The XK8's automatic transmission suffers from premature chain wear, failing MOT tests at 606.6 times the national fleet average. Affects X100; typical independent garage repair cost is £2,500–£4,500.
Wheel bearing excessive play (X100) Major
The XK8 experiences premature wheel bearing failure at 55.3 times the national fleet average. Affects X100; typical independent garage repair cost is £180–£350.
For the complete picture — including repair costs across independent, specialist, and dealer garages — see the full Jaguar Xk8 common problems breakdown.
What to check before buying a Jaguar Xk8
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Jaguar Xk8:
Suspension — check for abs fault, subframe bushes or mounts worn, wheel bearings worn. Bodywork — check for transmission joint, belt or chain worn, floor deteriorated or insecure, structural corrosion. Lights & Electrics — check for indicator or hazard warning switch does not ope....
Beyond the MOT items, ask specifically about structural corrosion compromising rigidity and subframe mounting point corrosion. These won't show up on a standard MOT but can be expensive to fix — repairs start from £3,000. A specialist pre-purchase inspection is worth the investment on this model.
Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. And verify the service history to confirm maintenance has been kept up to schedule. Enter any reg into our free car check to see the complete picture.
Looking at a specific Jaguar Xk8?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Jaguar Xk8 MOT FAQs
What are the most common MOT failures on a Jaguar Xk8?
Based on 93,132 DVSA MOT tests, the most common failure is abs fault — at 34x the national fleet average. Other frequent failures include transmission joint, belt or chain worn and subframe bushes or mounts worn.
Is the Jaguar Xk8 reliable based on MOT data?
The Jaguar Xk8 has 18 MOT failure categories above the fleet average. Specialists also flag structural corrosion compromising rigidity as a concern. A pre-purchase inspection and service history check are recommended.
What MOT failures should I expect at high mileage?
Above 100,000 miles, the Jaguar Xk8 most commonly fails on floor deteriorated or insecure and indicator or hazard warning switch does not ope.... Under 60,000 miles, the main issues are transmission joint, belt or chain worn and structural corrosion.
How do I check a Jaguar Xk8's MOT history?
Enter the registration number into our free car check above. You'll see every MOT test result, advisories and failures, mileage readings, write-off status, and finance checks.
MOT failure data sourced from DVSA bulk test records via data.gov.uk. Ratios compare this model's failure rate against the national fleet average. Known issues sourced from manufacturer bulletins, specialist workshops, and verified owner reports.