2018 Renault Koleos MOT pass rate: 87.0% (2,700 tests)
Is the 2018 Koleos getting worse?
Pass rate of 2018-registered cars across recent test years:
Scroll horizontally to read every trend column.
| Test year | Pass rate | Pass-rate bar |
|---|---|---|
| 2023 | 87.4% -0.6 vs same-age |
87.4% visual scale |
| 2024 | 87.3% +1.1 vs same-age |
87.3% visual scale |
| 2025 | 86.1% +1.4 vs same-age |
86.1% visual scale |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2018 Koleos
Scroll horizontally to read every failure column.
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Brakes | 176 | 27.4% |
| 2 | Tyres | 168 | 26.1% |
| 3 | Suspension | 119 | 18.5% |
| 4 | Visibility | 55 | 8.6% |
| 5 | Steering | 52 | 8.1% |
| 6 | Lamps, reflectors and electrical equipment | 33 | 5.1% |
All Koleos years compared
Scroll horizontally to compare every registration-year column.
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2009 | 2,328 | 58.2% | -8.3 pts | 113,216 |
| 2017 | 1,984 | 82.6% | -1.4 pts | 56,890 |
| 2018 (this page) | 2,700 | 87.0% | +0.6 pts | 50,318 |
| 2019 | 2,295 | 86.5% | -1.9 pts | 40,023 |
- Free MOT history checkThe exact car’s failures, advisories and mileage trail — sellers can’t edit it
FAQs
Is a 2018 Renault Koleos reliable?
2018-registered examples passed 87.0% of their MOT tests (2,700 tests, 2023–2025), +0.6 points versus all UK cars registered in the same year. At roughly 8 years old with a median 50,318 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2018 Koleos?
The median tested example shows 50,318 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Before you agree to the work
A fault or an advisory is a quote waiting to happen. These pages set out what a garage has to tell you, what a comparable written quote should include, and what you can do if the bill is not what you agreed.
- When a repair costs more than the car — what a comparable quote should include, plus any verified UK figures we have sourced.
- Estimates, quotes and extra work — what a price has to cover, and when a garage may charge more than it first said.
- What a diagnostic test costs — what the fee should include, and when it should come off the repair.
- Tools — when to buy and when to skip — how to choose a diagnostic tool, and when a garage visit is cheaper than owning one.
- Choosing a garage you can check — what to verify before you hand over the keys.
- Your rights after a car repair — what to do when the work is not right, and how to put it in writing.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under the Open Government Licence v3.0.