Should I check the MOT history before buying a 1998 Jaguar Xj?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 1998 Jaguar Xj?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 1998 Jaguar Xj?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

How many 1998 Jaguar Xj vehicles have had dangerous defects recorded?

23% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 1998 Jaguar Xj reliable?

Based on MOT data from 6,358 vehicles, the 1998 Jaguar Xj has a first-time MOT pass rate of 75.4%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 1998 Jaguar Xj?

The most frequently recorded MOT issues on the 1998 Jaguar Xj are: Nearside Rear Tyre worn close to the legal limit (66.4% of vehicles), Offside Rear Tyre worn close to the legal limit (65.4% of vehicles), Nearside Front Tyre worn close to the legal limit (53.6% of vehicles). These figures are based on actual MOT test records — search a specific registration on CarHunch to see its individual history.

Do I need an HPI check when buying a 1998 Jaguar Xj?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Jaguar Xj (1998)

6,358 real MOT outcomes analysed • 75.4% first-time pass rate

1998 Jaguar Xj

CarHunch analysed 6,358 real MOT records for the 1998 Jaguar Xj. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 1998 Jaguar XJ has a first-time pass rate of 75.4%, which sits 4.6 percentage points below the UK average of 80%, signalling below-average reliability for its age. More concerning, nearly a quarter of these cars (23.4%) have recorded dangerous defects during MOT testing, which is a significant buyer red flag that warrants professional inspection before purchase.

At nearly 96,000 miles on average, these XJs show typical mileage for their age, but the real story lies in what inspectors find: an average of over 18 advisories per vehicle suggests chronic wear across multiple systems, not just one or two problem areas. Budget for at least 3 failures worth fixing on your next MOT, and have a pre-purchase inspection focus specifically on suspension, brakes, and electrical systems—the areas where this model persistently struggles.

The 1998 Jaguar Xj passes its MOT first time at roughly the UK average rate (75.4%) — solid but worth checking this vehicle's history carefully.

⚠️ Over 1 in 5 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

75.4%

UK average ~80%

Around average

Dangerous (ever)

23.4%

At least once in MOT history

Check this vehicle

Avg failures / car

3.09

Over 11.8 tests on record

High

Typical mileage

94k

Middle half: 73k–116k

For context

🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.

🔧 Expect consumable spend. An average of 18.3 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.

🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 6,358 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

What tends to go wrong

Across 6,358 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 66.4%

Nearside Rear Tyre worn close to the legal limit · Offside Rear Tyre worn close to the legal limit · Nearside Front Tyre worn close to the legal limit · …

Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.

Suspension & steering 26%

Offside Rear wheel bearing has slight play · Nearside Rear wheel bearing has slight play · Nearside Front Suspension component mounting prescribed area is corroded but not considered excessive · …

Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.

Exhaust & emissions 23.4%

Exhaust emissions Lambda reading after 2nd fast idle outside specified limits · Exhaust emissions carbon monoxide content after 2nd fast idle excessive

Brake wear 21.7%

Nearside Front Brake pipe slightly corroded · Offside Front Brake pipe slightly corroded

Ask the seller when brakes were last serviced. If they don't know, factor in the cost.

Other issues 21.2%

Windscreen has damage to an area less than a 40mm circle outside zone 'A' · Windscreen has damage to an area less than a 10mm circle within zone 'A' · Fuel pipe/s corroded

Data covers a 3-year window centred on 1998.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 6,358 Jaguar Xj cars.

Before you buy a 1998 Jaguar Xj

Based on MOT data from 6,358 vehicles — here's what to check.

📋 Check the full MOT history. 23.4% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (99%)	6,318	75.4%	3.09

Colour Breakdown

Based on 79,443 Jaguar Xj vehicles registered in the UK — across all years. From DVLA registration records.

Blue 29.4%

23,344

Red 17.2%

13,699

Green 14.1%

11,218

Silver 11.7%

9,256

Black 11.4%

9,064

Grey 9.2%

7,286

White 2.2%

1,781

Beige 2%

1,625

Gold 1.2%

984

Turquoise 0.6%

447

Brown 0.5%

419

Purple 0.4%

320

Mileage Distribution

Most 1998 Jaguar Xj vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

93,579

typical

73,337

low mileage

115,627

high mileage

Half of all 1998 Jaguar Xj vehicles fall between 73,337 and 115,627 miles.

Is the mileage you're seeing normal?

✓ Under 73,337 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 73,337–115,627 miles — normal for age. This is where most 1998 Jaguar Xjs sit.

⚠ Over 156,096 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1998 Jaguar Xj — Still on the Road

Numbers are thinning — 19% of 1998 Jaguar Xjs are still active.

Numbers are declining — 540 vehicles still getting MOTs in 2025 (19% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

11.8

Avg MOT tests per vehicle

3.09

Avg failures per vehicle

18.3

Avg advisories per vehicle

Other model years — Jaguar Xj: All Xj years → Which year to buy? →

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Average reliability — agree?