1986 Land Rover Defender MOT pass rate, common failures & what to check

In 2025, 68.3% of Land Rover Defenders first used in 1986 passed their MOT first time, against 73.9% for all cars first used in 1986. Across 5,376 Defender first tests from 2023 to 2025, the most common failure areas were lamps and electrical equipment, body, chassis and structure and brakes.

This page analyses first MOT tests for Land Rover Defenders first used in 1986 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.

Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026

Passed first time, 2025
68.3%
of 1,716 first tests; all cars first used in 1986: 73.9%. Fixed-at-the-test counts as a fail
Tests analysed
5,376
first tests, 2023–2025; 1,716 in 2025
Clean pass, 2025
33.7%
of 1,716 first tests in 2025, passed with no advisory and no minor defect recorded
Typical mileage, tested in 2025
132,500
middle half: 95,500–173,000 miles; all cars first used in 1986: 80,500

How the 1986 Land Rover Defender MOT pass rate has changed

Share of first tests passed in each year, Defenders first used in 1986 against all cars first used in 1986 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the Defender figure was 5.6 points lower.

1986 DefenderAll cars first used in 1986
60%70%80%20212022202320242025Test year (first tests)All cars first used in 1986, test year 2021: 68.2%All cars first used in 1986, test year 2022: 70.3%All cars first used in 1986, test year 2023: 71.5%All cars first used in 1986, test year 2024: 72.8%All cars first used in 1986, test year 2025: 73.9%1986 Defender, test year 2021: 62.5%1986 Defender, test year 2022: 64.5%1986 Defender, test year 2023: 66.2%1986 Defender, test year 2024: 66.9%1986 Defender, test year 2025: 68.3%73.9%68.3%
View this chart as a table
Test year1986 DefenderAll cars first used 1986Defender first tests
202162.5%68.2%1,356
202264.5%70.3%1,935
202366.2%71.5%1,879
202466.9%72.8%1,781
202568.3%73.9%1,716

Common 1986 Land Rover Defender MOT failures

Share of the 1,770 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.

Lamps, reflectors and electrical equipment64.2%
Body, chassis, structure31.1%
Brakes28.5%
Suspension27.8%
Steering22.8%
Visibility22.6%
Noise, emissions and leaks12.6%
Tyres5.6%

Most common failure items

DVSA failure itemShare of failed first testsTests
Position lamp: not working14.4%255
Rear fog lamp: not working14.1%250
Washers: not working7.9%139
Wipers: does not clear the windscreen effectively7.7%137
Stop lamp: not working7.5%133

Item names are DVSA’s own wording. 2023–2025 combined.

What to check on a 1986 Land Rover Defender before buying

The three areas where failed first tests most often had a fault, 2023–2025.

  1. Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
  2. Body and underside. Worth looking underneath with a torch at the sills, floor and mountings for corrosion, and at the rubber boots on the drive shafts for splits.
  3. Brakes. Worth looking at the discs and pads through the wheel spokes for scoring and a worn lip, and noticing on the test drive whether the car pulls to one side or the pedal feels long.

Common 1986 Land Rover Defender MOT advisories

Advisories are points the tester noted that did not fail the car. Most common on 1986 Defenders, as a share of all 5,376 first tests, 2023–2025.

DVSA advisory itemShare of first testsTests
Engine oil leaks: leak, but not excessive24.4%1,312
Wheel bearings: has slight play9.4%503
Rigid brake pipes: corroded, covered in grease or other material8.7%469
Tyre condition: slightly damaged/cracking or perishing8.0%432
Transmission oil leaks: leak, but not excessive7.4%396

Questions about the 1986 Land Rover Defender MOT

What is the MOT pass rate of a 1986 Land Rover Defender?

In 2025, 68.3% of Defenders first used in 1986 passed their MOT first time, against 73.9% for all cars first used in 1986. A car fixed during the test counts as a fail.

What does a 1986 Defender most often fail its MOT on?

Lamps and electrical equipment (in 64.2% of failed first tests, 2023–2025), body, chassis and structure (31.1%) and brakes (28.5%). The single most common item was “Position lamp: not working” (14.4%).

How often does a 1986 Land Rover Defender fail its MOT?

In 2025, 31.7% of first tests on Defenders first used in 1986 did not pass first time: 27.3% failed, and a further 4.4% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 1,770 of 5,376 first tests did not pass first time.

What are the most common 1986 Land Rover Defender MOT advisories?

“Engine oil leaks: leak, but not excessive” (on 24.4% of first tests, 2023–2025), “Wheel bearings: has slight play” (9.4%), “Rigid brake pipes: corroded, covered in grease or other material” (8.7%), “Tyre condition: slightly damaged/cracking or perishing” (8.0%) and “Transmission oil leaks: leak, but not excessive” (7.4%).

Is a 1986 Land Rover Defender reliable?

An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 62.5% in 2021 to 68.3% in 2025. For one particular car, its own MOT history matters more than the average.

How the 1986 Land Rover Defender MOT data is calculated

Every number on this page is calculated by SortedCars from DVSA’s anonymised MOT test data for Great Britain, 2021–2025. “1986 Defender” means a Land Rover Defender whose date of first use falls in 1986 (C and D plates), all trims grouped. Class 4 vehicles, first tests only — retests are not counted. Pass rate = passed ÷ all first tests; a car with a fault fixed during the test (PRS) counts as a fail. Our national first-test pass rate matches DVSA’s published figure (table DVSA/MOT/01) to within 0.04 points in every year. Clean pass = passed with no advisory and no minor defect recorded. Mileage is the reading recorded at the test. Comparisons are with all cars first used in 1986, any make or fuel, and are not adjusted for mileage, fuel or use. Failure and advisory item names are DVSA’s own wording. No figure is shown for fewer than 500 tests; an item is shown only if it appears on at least 50 tests and 1% of the base. Pass rates describe a group of cars, not one car: a well-kept example can pass and a neglected one can fail. This page is general information, not advice about any particular vehicle; always have a used car inspected before you buy. SortedCars is not affiliated with or endorsed by DVSA. You can check any car’s MOT history free on the official service: gov.uk/check-mot-history. Contains public sector information licensed under the Open Government Licence v3.0.