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MOT fail rates by first-use year

2004 Land Rover Defender MOT fail rate and common faults

How Land Rover Defender cars first used in 2004 did at their MOTs from 2022 to 2025, against all cars of the same age. From 16,919 DVSA MOT tests of these cars. First use is usually the date the car was first registered.

MOT data updated

At 21 years, tested in 2025

MOT fail rate at age 21 (n=4,164)35.3%
All cars at 21 years (n=1,321,417)42.1%
Difference−6.8 pts
MOT tests of 2004 cars, 2022 to 202516,919

What stands out

  • In 2025, at 21 years old, Land Rover Defender cars first used in 2004 failed 35.3% of MOTs (4,164 tests), 6.8 points below the 42.1% for all cars that age.
  • From 2022 to 2025, as these cars went from 18 to 21 years old, the fail rate moved from 35.8% to 35.3%.
  • Land Rover Defender cars first used a year earlier, in 2003, failed 36.6% at the same age of 21 years (4,380 tests, in 2024).
  • The most common fail item that is not a wear item, for the Land Rover Defender at 21 years, is shock absorbers: has an excessively worn bush, at 3.3 per 100 MOTs (all cars: 0.2).

MOT fail rate by test year

Land Rover Defender cars first used in 2004: share of MOT tests that failed, by test year, against all cars of the same age. Years with fewer than 1,000 tests are not shown.
Test yearAgeMOT fail rateTests (n)All carsDifference
202218 years35.8%4,29043.3%−7.4 pts
202319 years34.8%4,23743.2%−8.4 pts
202420 years34.7%4,22842.8%−8.1 pts
202521 years35.3%4,16442.1%−6.8 pts

Most common faults at 21 years

These figures cover all Land Rover Defender MOTs (first used before 2020) at 21 years: cars first used 2001 to 2004, tested 2022 to 2025 (n=15,682). The list uses every first-use year so it has enough tests. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.

MOT fail items

Fail itemPer 100 MOTsAll cars
Side/position light not working Wear3.54.9
Shock absorbers: has an excessively worn bush3.30.2
Brake light not working Wear3.23.9
Wipers not clearing screen Wear3.03.5
Rear fog lamp: not working Wear2.91.4
Rigid brake pipes: excessively corroded2.52.5
Washers: provides insufficient washer liquid Wear2.42.1
Track rod end: ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt2.10.5
Wheel bearings: has excessive play2.10.5
Headlight aimed too high Wear1.91.2

Per 100 of the MOTs above (n=15,682). A test with two items counts once for each.

Advisories

AdvisoryPer 100 MOTsAll cars
Engine oil leaks: leak, but not excessive21.314.8
Rigid brake pipes: corroded, covered in grease or other material15.415.9
Wheel bearings: has slight play8.21.8
Brake discs: worn, pitted or scored, but not seriously weakened7.810.4
Shock absorbers: has a slightly worn bush7.20.9
Tyre condition: slightly damaged/cracking or perishing Wear6.510.4
Transmission oil leaks: leak, but not excessive6.31.6
Chassis condition: is corroded but structural rigidity is not significantly reduced5.82.0
Coil spring: corroded5.48.1
Seat belt condition: webbing slightly damaged or frayed4.80.5

Per 100 of the MOTs above (n=15,682). A test with two items counts once for each.

Fuel type at 21 years

These figures cover all Land Rover Defender MOTs (first used before 2020) at 21 years: cars first used 2001 to 2004, tested 2022 to 2025 (n=15,682). Each fuel is set against all cars of the same fuel and age. Fuels with fewer than 1,000 tests are not shown.

FuelShare of testsMOT fail rateTests (n)All cars, same fuelMedian mileage
Diesel100.0%36.6%15,62943.0%121,153 miles

Fail rate by mileage at 21 years

These figures cover all Land Rover Defender MOTs (first used before 2020) at 21 years: cars first used 2001 to 2004, tested 2022 to 2025 (n=15,682). At 21 years, Land Rover Defender cars at over 150,000 miles failed more often (38.9%, n=4,369) than those at 60,000 to 90,000 miles (33.5%, n=2,497). Bands with fewer than 1,000 tests are not shown.

Mileage at testMOT fail rateTests (n)All cars
60,000 to 90,000 miles33.5%2,49740.6%
90,000 to 120,000 miles37.3%4,04844.7%
120,000 to 150,000 miles38.6%3,58446.5%
Over 150,000 miles38.9%4,36946.6%

Car tax rules for a 2004 car

  • Cars first registered from 1 March 2001 to 31 March 2017 are taxed by CO2 emissions band, from band A (the lowest emissions) to band M. The band is set by the CO2 figure on the V5C logbook.

These are the rules, not the amount for a specific car. Car tax check

ULEZ and clean air zones

  • Diesel cars first registered before September 2015 usually do not meet Euro 6, so a 2004 diesel usually pays the ULEZ daily charge. A few models met Euro 6 early.
  • The clean air zones in Birmingham and Bristol use the same Euro 4 petrol and Euro 6 diesel standards. The low emission zones in Scotland use them too, but enforce them with fines, not a daily charge.

The Euro standard of the car decides, not the year alone. ULEZ checker

Other years of the Land Rover Defender

Other Land Rover models first used in 2004

ModelAge at testMOT fail rateTests (n)All cars
Land Rover Discovery (2004)21 years in 202533.9%5,71442.1%
Land Rover Freelander (2004)21 years in 202546.1%3,61942.1%
Land Rover Range Rover (2004)21 years in 202530.9%2,17342.1%

More on the Land Rover Defender

Read this with care. A fail rate is not a measure of build quality. How far cars are driven, how they are used and how well owners maintain them all change it, and wear items such as tyres and brake pads are common fails. Compare a model only with cars of the same age. Methodology and limits.

Found one you might buy? Vet the specific car.

These figures describe 2004 Land Rover Defender cars as a group, not any one car. The VetTheCar Buying Report looks at the car you are buying: its MOT history, what similar cars did next, and what to ask the seller.

See an example Buying Report All car tools

Source

Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 28 September 2026.

Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources

Car tax and clean air zone rules are summarised from GOV.UK and Transport for London guidance. They are general rules and are not drawn from the MOT data.