Should I check the MOT history before buying a 1981 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 1981 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 1981 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.

Is the 1981 Jaguar Xj reliable?

Based on MOT data from 131 vehicles, the 1981 Jaguar Xj has a first-time MOT pass rate of 72.6%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

What are common problems with the 1981 Jaguar Xj?

The most frequently recorded MOT issues on the 1981 Jaguar Xj are: Parking brake: efficiency below requirements (60.4% of vehicles), Exhaust has a minor leak of exhaust gases (20.4% of vehicles), Oil leak (19.2% 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 1981 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 (1981)

131 real MOT outcomes analysed • 72.6% first-time pass rate

1981 Jaguar Xj

CarHunch analysed 131 real MOT records for the 1981 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 Compare Models

The 1981 Jaguar XJ passes its MOT on the first attempt 72.5% of the time, sitting 7.5 percentage points below the UK average of 80%—a meaningful gap that reflects the challenges of keeping a 43-year-old luxury car compliant. Nearly one in five of these vehicles (19.1%) have recorded a dangerous defect at some point, which is a legitimate concern for any buyer weighing up the risks.

These XJs are running at a modest 54,000 miles on average, which is actually quite low for their age and suggests many have been cherished rather than thrashed. However, expect to address an average of 1.82 failures and 5.6 advisories per test—most will need welding, suspension sorting, or electrical attention—so budget for regular specialist maintenance and factor in that vintage Jaguar ownership demands both patience and cash.

We have limited data for the 1981 Jaguar Xj — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 of these cars 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

72.6%

UK average ~80%

Below average

Dangerous (ever)

19.1%

At least once in MOT history

Check this vehicle

Avg failures / car

1.82

Over 6.4 tests on record

High

Typical mileage

60k

Middle half: 30k–78k

For context

These stats describe 131 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.

What tends to go wrong

Based on 131 cars. % = share of cohort with at least one match (advisories + failures combined).

~1 in 3 Brake wear

Parking brake: efficiency below requirements (60.4%) · Parking brake: parking brake efficiency only just met. It would appear that the braking system requires adjustment or repair. (13.9%) · Nearside rear parking brake recording little or no effort (8.9%) · …

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

~1 in 6 Exhaust & emissions

Exhaust has a minor leak of exhaust gases (20.4%) · Exhaust emissions carbon monoxide content excessive (17.5%)

~1 in 6 Other issues

Oil leak (19.2%) · Oil leak, but not excessive (9.5%) · Horn not working (8.9%)

~1 in 6 Suspension & steering

Nearside Rear wheel bearing has slight play (16%) · Offside Rear wheel bearing has slight play (13%) · Offside Rear Suspension component mounting prescribed area is excessively corroded (10.7%) · …

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

~1 in 10 Wipers & washers

Windscreen washer provides insufficient washer liquid (12.4%)

~1 in 10 Tyre wear

Offside Front Tyre worn close to the legal limit (10.9%)

💡 Budget for a full set — on a vehicle this age, tyres are expected consumables. A used-car inspection will confirm how much is left.

Data covers a 3-year window centred on 1981. Counts include advisories and failures.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 131 Jaguar Xj cars.

Before you buy a 1981 Jaguar Xj

Based on MOT data from 131 vehicles — here's what to check.

📋 Check the full MOT history. 19.1% 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 (98%)	128	72.8%	1.84

Mileage Distribution

Most 1981 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.

60,184

typical

29,881

low mileage

77,831

high mileage

Half of all 1981 Jaguar Xj vehicles fall between 29,881 and 77,831 miles.

Is the mileage you're seeing normal?

✓ Under 29,881 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.

✓ 29,881–77,831 miles — normal for age. This is where most 1981 Jaguar Xjs sit.

⚠ Over 105,071 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

1981 Jaguar Xj — Still on the Road

Numbers are thinning — 34% of 1981 Jaguar Xjs are still active.

Numbers are declining — 11 vehicles still getting MOTs in 2022 (34% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2022.
* 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

6.4

Avg MOT tests per vehicle

1.82

Avg failures per vehicle

5.6

Avg advisories per vehicle

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

1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Or browse all models: Jaguar →

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