1991 · 33 years old at test · Petrol mostly

1991 Jaguar Xjs MOT pass rate and common faults

227 MOT tests in 2024. 82.8% passed first time, compared with 71.1% for all cars the same age.

117Well above average
Passed first time82.8%
Failed or needed repairs17.2%
Typical mileage at test80,000

Most common reasons for failing

Share of all 227 tests where this item caused a failure.

  1. Rbt (sp): efficiency below requirements4.0%
  2. Rbt (sp): efficiency less than 50% of the required value3.1%
    13 marked dangerous
  3. Washers: not working1.8%
  4. Service brake performance: excessively binding1.8%
  5. Headlamp: not working on main beam1.3%
  6. Wheel bearings: has excessive play1.3%
  7. Wipers: does not clear the windscreen effectively1.3%
  8. Headlamp aim: projected beam image is obviously incorrect0.9%
  9. Stop lamp: not working0.9%
  10. Stop lamp: all not working0.9%
    4 marked dangerous

Problem areas

Failure items found per 100 tests, by part of the car.

  1. Brakes14.1%
  2. Lights & electrics11.0%
  3. Visibility (wipers, screen, mirrors)4.8%
  4. Suspension4.0%
  5. Body & chassis1.8%
  6. Steering1.8%
  7. Emissions & leaks1.3%
  8. Tyres1.3%

Most common advisories

Not failures yet, but things the tester warned about.

  1. Engine oil leaks: leaking excessively from engine16.7%
  2. Wheel bearings: has excessive play9.7%
  3. Tread depth below requirements of 1.6mm6.6%
  4. Tyres - condition: has a tear, caused by separation or partial failure of its structure6.2%
  5. Coil spring: corroded so that its cross sectional area is reduced and seriously weakened5.3%

What this means if you are buying one

This model year does better than most cars its age, so it is a reasonable used buy on MOT record alone. Before buying, check the area that fails most: rbt (sp): efficiency below requirements. Then look up the car's own MOT history on GOV.UK with its number plate, and look for repeat advisories.

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Questions

What is the MOT pass rate for a 1991 Jaguar Xjs?

In 2024, 82.8% of 1991 Jaguar Xjs cars passed their MOT first time, across 227 tests. The average for all 33-year-old cars was 71.1%.

What are the most common MOT failures on a 1991 Jaguar Xjs?

The most common failure reasons were rbt (sp): efficiency below requirements; rbt (sp): efficiency less than 50% of the required value; washers: not working. The biggest problem area was brakes.

Is the 1991 Jaguar Xjs reliable at MOT time?

Its MOT Rank score is 117, which is well above average for a car of its age (100 means exactly average).