3,620 tests in 2025
Renault Koleos reliability and MOT pass rate
79.4% passed first time. The 20.6% fail rate is 2.0 points better than the all-car average, on a median example 7 years old with 61,503 miles.
Pass rate
79.4%
22.6% of all cars failed; 20.6% of these did.
Fixed on the day
4.5%
Passed after a defect was put right during the visit.
Median at test
61,503 mi
7 years old.
Fail rate by age
| Age at test | Tests | Fail rate |
|---|---|---|
| 3-5 years | 442 | 10.2% |
| 6-9 years | 2,380 | 15% |
| 10-13 years | 4 | — |
| 14+ years | 794 | 42.7% |
What the Koleos fails on
Share of failed tests with at least one fail item in each DVSA inspection section. A test can fail in several sections at once.
- Suspension18 dangerous40.5%
- Brakes174 dangerous28.2%
- Lamps, reflectors and electrical equipment1 dangerous25.1%
- Steering15 dangerous21.9%
- Tyres128 dangerous20.6%
- Noise, emissions and leaks16%
- Visibility13.6%
- Body, chassis, structure2 dangerous10.8%
Is the Koleos getting worse?
The fail rate fell 1.8 points to 22.5% from 2022 to 2025 while the median one tested aged 2 years. Ageing alone would predict about 4.2 points, so it is holding up better than the fleet average for its age.
| Year | Tests | Median age | Fail rate | All cars | |
|---|---|---|---|---|---|
| 2022 | 4,074 | 5 | 24.3% | 22.5% | |
| 2023 | 3,784 | 6 | 23.7% | 22.8% | |
| 2024 | 2,981 | 7 | 24.2% | 23.2% | |
| 2025 | 2,990 | 7 | 22.5% | 22.6% |
Fail rate is first attempts at class 4 tests. Median age is the age of a typical Koleos at its test that year, and it is the number to watch: across the whole fleet each extra year of age adds roughly 1.9 points to the fail rate, so a model whose age and fail rate rise together is simply getting older.
The exact defects that fail it
Every failure item DVSA recorded against a Koleos in 2025, counted by how many tests each one appeared on.
- 1Track rod end: ball joint has excessive play124 tests
- 2Brake pads: less than 1.5 mm thick122 tests
- 3Ball joint: ball joint excessively worn112 tests
- 4Malfunction indicator lamp: inoperative or indicates a malfunction106 tests
- 5Pins and bushes: pin or bush excessively worn87 tests
- 6Position lamp: not working72 tests
- 7Tread depth: tread depth below requirements of 1.6mm59 tests
- 8Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt54 tests
What wears out first
Advisories are the tester flagging wear that is still legal. A typical Koleos collects 2.79 of them per test, and these are the ones that come up most. Treat it as the running-repairs list for the next year or two.
- 1Tread depth: tread depth below requirements of 1.6mm628 tests
- 2Brake pads: less than 1.5 mm thick531 tests
- 3Pins and bushes: pin or bush excessively worn364 tests
- 4Brake discs: in such a condition that it is seriously weakened355 tests
- 5Non-component advisories: Play in steering rack inner joint(s)220 tests
- 6Condition: has a tear, caused by separation or partial failure of its structure190 tests
- 7Engine oil leaks: leaking excessively from engine137 tests
- 8Suspension arm: corroded and seriously weakened119 tests
Questions
What is the Renault Koleos MOT pass rate?
79.4% of the 3,620 Renault Koleos first-attempt MOTs in 2025 passed. The fail rate of 20.6% compares with 22.6% across all cars. A further 4.5% passed after a defect was fixed during the test visit.
What does a Renault Koleos usually fail on?
The single most common failure is "Track rod end: ball joint has excessive play", recorded on 124 failed tests, followed by "Brake pads: less than 1.5 mm thick" and "Ball joint: ball joint excessively worn". By section, suspension appears in 40.5% of failures, brakes appears in 28.2% of failures, lamps, reflectors and electrical equipment appears in 25.1% of failures.
Does age change the odds?
Sharply. At 3 to 5 years old the fail rate was 10.2%; at 14+ years it was 42.7%. The median Renault Koleos tested in 2025 was 7 years old with 61,503 miles.
Is the Renault Koleos getting less reliable?
The fail rate fell 1.8 points to 22.5% from 2022 to 2025 while the median one tested aged 2 years. Ageing alone would predict about 4.2 points, so it is holding up better than the fleet average for its age.
First-attempt class 4 tests, 2025, from DVSA’s anonymised MOT data (OGL v3, retrieved 2026-09-12). DVSA records newer cars trim by trim; this page adds every Koleos trim together. Year-on-year figures come from the same DVSA extracts for 2026 and earlier years. Full method on the pass rates hub.
Other Renault models
- Clio 36.8%
- Captur 19.9%
- Modus 42.9%
- Arkana 9.1%
- Laguna 38.2%
- Kangoo Electric 19.8%
- Grand Modus 42%
- Wind 37%
- G 41.5%
- Grand Espace 39.7%
Checking a particular Koleos?
The odds above are the model. The car in front of you has its own record: every test, every advisory, the mileage at each one.
Due a test? Find an approved MOT station near you.