British V8 grand touring at bargain prices
The Jaguar XK8 is a grand touring coupe and convertible that sits in the affordable modern classic bracket, offering Aston Martin DB7 looks and presence at a fraction of the cost. It appeals to enthusiasts seeking a stylish British GT with V8 power, and is increasingly appreciated in the classic car market. Prices remain accessible compared to equivalent Mercedes SL or Porsche 911 models of the same era.
We track 5 known issues across the Jaguar XK8 range, including 2 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Jaguar XK8? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
X100 (1996–2005) — Engine options included the 4.0L V8, 4.0L V8, 4.0L V8, 4.2L V8. Our database flags 5 known issues on this generation, 2 of which are rated as safety-critical. The most significant concern is Structural corrosion compromising rigidity (£3,000–£8,000 to address).
The XK8 suffers from severe structural corrosion that compromises the rigidity of the body assembly. The corrosion typically affects the sills, floor sections, and areas around suspension mounting points. This is a widespread issue across all variants and represents the most serious safety defect on this model.
Structural corrosion renders the vehicle unsafe to drive and will result in MOT failure. Repair costs are typically uneconomical, often exceeding the car's value. The vehicle should not be driven if structural integrity is compromised.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
The XK8 experiences severe corrosion at subframe and suspension mounting points, failing MOT tests at 32.5 times the national fleet average. The corrosion affects the prescribed areas within 30cm of suspension mounting points, compromising the structural integrity of the chassis. This is a safety-critical defect that can lead to suspension detachment while driving.
Subframe mounting point failure can cause catastrophic suspension detachment, making the vehicle unsafe to drive. Repair requires extensive structural welding work and is often uneconomical. The vehicle should not be driven if mounting point integrity is compromised.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
The XK8's automatic transmission suffers from premature chain wear, failing MOT tests at 606.6 times the national fleet average. This affects the internal drive chain within the ZF 5HP24 transmission. The failure typically manifests as slipping, harsh shifts, or complete transmission failure. This is the highest failure rate of any defect on this model and affects both 4.0L and 4.2L variants.
Transmission failure typically requires complete rebuild or replacement costing £3,000-£6,000. The transmission may fail completely without warning, leaving the vehicle unable to move. Driving with transmission problems will cause further internal damage.
Test the automatic gearbox extensively in slow traffic, car parks and on hill starts. Feel for any juddering, hesitation or clunking during gear changes. Try repeated low-speed manoeuvres as this is where problems are most apparent.
The XK8 experiences premature wheel bearing failure at 55.3 times the national fleet average. The failure affects all four corners but is most problematic at the rear where the bearings are integral to the hub assembly. Early symptoms include humming noises that increase with speed and steering vibration.
Worn wheel bearings can cause wheel wobble, steering instability, and in extreme cases, wheel detachment. The vehicle should not be driven at speed with severely worn bearings. Replacement costs vary significantly between front and rear bearings due to hub assembly design.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
The XK8 experiences premature wear of shock absorber mounting bushes, failing MOT tests at 42.0 times the national fleet average. The rubber bushes that isolate the shock absorbers from the body deteriorate due to age and the vehicle's weight, causing knocking noises and poor ride quality.
Worn shock absorber bushes affect ride quality, handling, and braking performance. While not immediately dangerous, they can lead to premature tyre wear and reduced vehicle stability. Complete suspension overhaul may be required on high-mileage examples.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
For the full breakdown of all 5 tracked issues with repair costs, see the Jaguar XK8 common problems page.
Based on 43k real DVSA MOT tests, the Jaguar XK8 fails more often than average on several items. The biggest outlier is transmission joint, belt or chain worn at 711x the fleet average, followed by floor deteriorated or insecure (152x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Jaguar XK8 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 10k miles) typically costs £80–£120 at an independent garage.
The bigger-ticket items to budget for include timing chain tensioner service (£800–£1,200), automatic transmission fluid (£200–£300).
See the full Jaguar XK8 service schedule for every interval and cost breakdown.
The Jaguar XK8 has some well-documented weak points, including 2 safety-critical issues that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable. 2003-2006 are the sweet spot — the 2003 facelift brought a stronger 4.2 V8, improved gearbox, and revised timing chain tensioners. Pre-2000 cars should be avoided entirely due to Nikasil bore failure. The 2004-2006 models have the fewest reported issues overall.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Jaguar XK8, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known Jaguar XK8 issues. We are not affiliated with any source listed.