The MOT Files

Known faults, from the test record

Land Rover Defender common problems

What fails on the Land Rover Defender at MOT, which parts are behind it, and how each model year compares. From 119,753 DVSA test records.

Data updated

Quick answer

The Land Rover Defender's most common MOT problems are bulbs and lamps, wiper blades and washers, headlamp aim, recorded in 47.7%, 21.7% and 15.1% of failed tests respectively. By model year, 2022 cars pass most often (92.2%) and 1994 cars least (64.0%), though most of that gap is age. Every figure here is what testers recorded, not what owners reported.

A “common problems” list is usually a forum thread: whoever had the worst day writes the longest post. This one is built the other way, from every Land Rover Defender that took an MOT last year and what the tester wrote down. It cannot see breakdowns, electrical gremlins or a gearbox that hunts, because the test does not check those. What it can see, it sees across 119,753 cars.

By component

What wears out on a Defender

Failure items grouped by the part behind them, with the share of failed Land Rover Defender tests recording each. A part can carry several DVSA wordings; they are listed beneath. One failed test often lists several items, so shares do not sum to 100%.

  1. 1.Bulbs and lamps

    47.7% of failed tests

    Filament bulbs simply expire; the cheapest and most avoidable failure on the test, and one of the most recorded.

    • A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioningexplained12.7%
    • An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioningexplained8.0%
    • Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioningexplained7.1%
    • A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lampsexplained5.0%

    Across all cars, bulbs and lamps failures climb 15-fold between three and fifteen years, peaking at 15+ years. How long bulbs and lamps last

  2. 2.Wiper blades and washers

    21.7% of failed tests

    Rubber blades harden and split within a year or two; washer jets block and pumps fail.

    • Wiper blade missing or obviously not clearing the windscreenexplained9.4%
    • Windscreen washers not working or not providing sufficient fluid to clear the windscreenexplained5.1%
    • Windscreen washers not working or not providing sufficient fluid to clear the windscreenexplained4.8%
    • Windscreen washers not working or not providing sufficient fluid to clear the windscreenexplained2.3%

    Across all cars, wiper blades and washers failures run at a similar rate at every age, because they are replaced on a cycle rather than wearing out with the car. How long wiper blades and washers last

  3. 3.Headlamp aim

    15.1% of failed tests

    Aim drifts with sagging suspension, a knocked lamp or a botched bulb change; adjustment, not a part.

    • The aim of a headlamp is not within limits laid down in the requirementsexplained5.5%
    • The aim of a headlamp is not within limits laid down in the requirementsexplained5.5%
    • The aim of a headlamp is not within limits laid down in the requirementsexplained4.1%
  4. 4.Shock absorbers

    14.4% of failed tests

    Seals wear and the damper leaks fluid or loses its action; failure is for a leak or no damping, not for being tired.

    • A shock absorber bush excessively wornexplained14.4%

    Across all cars, shock absorbers failures climb 7-fold between three and fifteen years, peaking at 15+ years. How long shock absorbers last

  5. 5.Steering rack and column

    13.6% of failed tests

    Rack gaiters split and let dirt in; the rack itself and the column are rarely the failing part.

    • Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etcexplained7.1%
    • Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etcexplained3.3%
    • Steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etcexplained3.3%
  6. 6.Ball joints

    13.1% of failed tests

    Steering and suspension ball joints wear internally and their dust covers split; excessive play fails.

    • A steering ball joint with excessive wear or free playexplained4.5%
    • A steering ball joint with excessive wear or free playexplained3.3%
    • A steering ball joint with excessive wear or free playexplained2.7%
    • A stub axle swivel pin and/or bush excessively wornexplained2.6%

    Across all cars, ball joints failures climb 28-fold between three and fifteen years, peaking at 12–14 years. How long ball joints last

  7. 7.Body and structure

    12.3% of failed tests

    Structural corrosion within 30 cm of a seat belt, suspension or steering mounting fails; it is a disease of age, salt and wet storage.

    • Body, cab or chassis excessively corroded at a mounting pointexplained6.5%
    • Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reducedexplained5.7%
  8. 8.Brake pipes

    11.1% of failed tests

    Steel pipes under the car corrode from salt and moisture, fastest on cars kept outside in wet or coastal areas; failure is for excessive corrosion or damage.

    • Brake pipe damaged or excessively corrodedexplained11.1%

    Across all cars, brake pipes failures climb from nothing between three and fifteen years, peaking at 15+ years. How long brake pipes last

By registration year

Defender problems by year

MOT pass rate for Land Rover Defender cars by the year they were first registered, from years with at least 1,000 tests. Every car in a row is the same age, so the rate is raw. Neighbouring years differ by a year of wear — a step of a point or two is age. The step at 2020, up 5.0 points, is larger than wear explains and most likely marks a change in the cars themselves.

198571%
198668%−3.2
198768%−0.0
198865%−2.9
198968%+2.8
199068%+0.3
199165%−3.0
199265%+0.0
199366%+1.0
199464%−2.4
199564%+0.2
199666%+1.5
199767%+1.0
199865%−1.8
199965%+0.1
200065%−0.3
200165%+0.3
200266%+1.1
200365%−0.8
200464%−0.9
200567%+2.7
200667%−0.6
200767%+0.5
200868%+1.3
200968%−0.2
201069%+0.3
201170%+1.5
201271%+1.5
201372%+0.7
201476%+3.6
201579%+3.4
201684%+4.5
202089%+5.0
202191%+2.5
202292%+1.0

Last column: change on the previous year, in points. Years registered within the last three years have not yet been tested and are not shown.

Before it fails

What testers warn Defender owners about

Advisories are the same parts a year or two earlier. Share of all Land Rover Defender tests carrying an advisory for each.

Go deeper

The rest of the Defender file

Common questions

What are the most common problems with a Land Rover Defender?
Going by what fails the MOT, bulbs and lamps (recorded in 47.7% of failed tests), wiper blades and washers (recorded in 21.7% of failed tests), and headlamp aim (recorded in 15.1% of failed tests). These are the items testers actually record across 119,753 tests, not reports from owners, so they describe what goes wrong at the point where it has to be fixed.
Which Land Rover Defender year is the most reliable?
By MOT pass rate, Land Rover Defender cars registered in 2022 do best at 92.2% and 1994 cars do worst at 64.0%. Most of that ordering is simply age — newer cars pass more — so read the year table for steps larger than a couple of points between neighbouring years; those mark a change in the cars rather than the calendar. The largest such step is at 2020, up 5.0 points on 2019.
Is the Land Rover Defender reliable?
Adjusted for the age and mileage of the cars tested, the Land Rover Defender passes 74.4% of MOTs against a national 72.3%. An MOT measures roadworthiness on the day rather than breakdowns or running costs, so this is a reliability measure in the narrow sense: how often the car meets the legal standard, and what stops it.
What should I check when buying a used Land Rover Defender?
Start with what fails most: bulbs and lamps, wiper blades and washers, shock absorbers. Then read the car's own MOT history for advisories carried year to year without repair — the model tells you what to expect, the history tells you whether this owner dealt with it.

Analysis built from DVSA data of