Jaguar

Jaguar Xj (2003)

3,100 real MOT outcomes analysed • 79.5% first-time pass rate

2003 Jaguar Xj

CarHunch analysed 3,100 real MOT records for the 2003 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 2003 Jaguar XJ's first-time pass rate of 79.5% sits just fractionally below the UK average of 80%, suggesting reliability that's broadly in line with other cars of this age—but the concerning figure here is that 39.3% of examples have experienced a dangerous defect at some point, well above what you'd want to see in a used purchase. This is a real buyer concern that warrants a thorough pre-purchase inspection.

At a median mileage of 80,947 miles for a 21-year-old car, these XJs are sitting right where you'd expect them to be. The average vehicle fails on 4.24 items and racks up 24 advisories per test, painting a picture of an ageing luxury saloon that develops niggles steadily—suspension wear, fluid leaks, and electrical gremlins are typical—so budget for maintenance and always have a specialist pre-purchase inspection focus on brake safety and suspension geometry before committing.

The 2003 Jaguar Xj has a decent first-time pass rate (79.5%), but a higher-than-average share of vehicles have had serious defects recorded — the individual vehicle's history matters a lot here.

⚠️ 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
79.5%
UK average ~80%
Around average
Dangerous (ever)
39.3%
At least once in MOT history
Check this vehicle
Avg failures / car
4.24
Over 19.6 tests on record
High
Typical mileage
81k
Middle half: 62k–102k
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 24 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 3,100 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.

Watch for defects — worth knowing

What tends to go wrong

Across 3,100 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 79%
Offside Rear Tyre worn close to the legal limit · Nearside Rear Tyre worn close to the legal limit · Offside 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.
Brake wear 27%
Offside Front Brake pipe slightly corroded · Front Brake pad(s) wearing thin · Nearside Front Brake pipe slightly corroded · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 25.8%
Oil leak, but not excessive · Under-trays fitted obscuring some underside components · Windscreen has damage to an area less than a 40mm circle outside zone 'A' · …

Data covers a 3-year window centred on 2003.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 3,100 Jaguar Xj cars.

UK

Before you buy a 2003 Jaguar Xj

Based on MOT data from 3,100 vehicles — here's what to check.

  • 📋 Check the full MOT history. 39.3% 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 3,071 79.5% 4.24

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 2003 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.

80,947
typical
61,724
low mileage
101,555
high mileage

Half of all 2003 Jaguar Xj vehicles fall between 61,724 and 101,555 miles.

Is the mileage you're seeing normal?
Under 61,724 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.
61,724–101,555 miles — normal for age. This is where most 2003 Jaguar Xjs sit.
Over 137,099 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2003 Jaguar Xj — Still on the Road

Numbers are thinning — 54% of 2003 Jaguar Xjs are still active.

1,383 vehicles still getting MOTs in 2025 — 54% of the peak remain.

2,567 1,383 2014 2025

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

19.6
Avg MOT tests per vehicle
4.24
Avg failures per vehicle
24
Avg advisories per vehicle
Other model years — Jaguar Xj: All Xj years → Which year to buy? →
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Watch for defects — worth knowing