Mini

Mini Countryman (2018)

13,739 real MOT outcomes analysed • 90.3% first-time pass rate

2018 Mini Countryman

CarHunch analysed 13,739 real MOT records for the 2018 Mini Countryman. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Common Issues Check a Specific Reg Petrol vs Diesel Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 MINI Countryman is substantially more reliable than the UK average, with a 90.3% first-time pass rate compared to 80%, and petrol variants edge slightly ahead at 90.8% versus diesel and hybrid models at 89–89.3%. However, 15.5% of these vehicles have experienced a dangerous defect at some point, which is worth factoring into your decision.

At just over 31,000 miles median mileage for a six-year-old car, these are relatively well-used but not heavily abused examples. The average of 0.65 failures per test suggests minor wear items are the main culprit, while 4.1 advisories per vehicle indicates routine maintenance needs—before buying, request full service history and budget for scheduled items like brake fluid and cabin filters.

The 2018 Mini Countryman passes its MOT first time at roughly the UK average rate (90.3%) — solid but worth checking this vehicle's history carefully.

⚠️ Around 1 in 8 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.
First-time pass
90.3%
UK average ~80%
Better than average
Dangerous (ever)
15.5%
At least once in MOT history
Check this vehicle
Avg failures / car
0.65
Over 5.8 tests on record
Moderate
Typical mileage
31k
Middle half: 23k–41k
For context
Good baseline reliability. A 90.3% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.
🔧 Expect consumable spend. An average of 4.1 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 13,739 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

What tends to go wrong

Across 13,739 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 40.3%
Nearside Front Tyre worn close to legal limit/worn on edge · Offside Front Tyre worn close to legal limit/worn on edge · Offside Rear Tyre slightly damaged/cracking or perishing · …
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Brake wear 18%
Rear Brake pad(s) wearing thin · Front Brake pad(s) wearing thin
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Other issues 15.5%
Nearside Rear Child Seat fitted not allowing full inspection of adult belt · Windscreen damaged but not adversely affecting driver's view · COVID-19 6 MONTH EXTENSION · …

Data covers a 3-year window centred on 2018.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 13,739 Mini Countryman cars.

UK

Petrol vs Diesel

Pass rate difference of 1.5 percentage points — worth knowing if you're choosing between the two.

90.8%
Petrol
9,060 vehicles
89.3%
Diesel
2,492 vehicles

Before you buy a 2018 Mini Countryman

Based on MOT data from 13,739 vehicles — here's what to check.

  • 📋 Check the full MOT history. 15.5% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
    Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
  • 🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection ClickMechanic
  • 📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History carVertical Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (66%) 9,060 90.8% 0.61
Diesel (18%) 2,492 89.3% 0.72
Hybrid Electric (Clean) (16%) 2,187 89.2% 0.71

Colour Breakdown

Based on 97,601 Mini Countryman vehicles registered in the UK — across all years. From DVLA registration records.

Grey 18.9%
18,486
Blue 18.3%
17,909
White 16.7%
16,326
Black 15.9%
15,548
Silver 11.9%
11,576
Red 9.1%
8,915
Green 8.1%
7,899
Bronze 0.5%
459
Brown 0.5%
455
Yellow 0%
15
Purple 0%
7
Maroon 0%
6

Mileage Distribution

Most 2018 Mini Countryman vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

31,243
typical
23,204
low mileage
40,534
high mileage

Half of all 2018 Mini Countryman vehicles fall between 23,204 and 40,534 miles.

Is the mileage you're seeing normal?
Under 23,204 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.
23,204–40,534 miles — normal for age. This is where most 2018 Mini Countrymans sit.
Over 54,720 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2018 Mini Countryman — Still on the Road

Almost all 2018 Mini Countrymans are still on the road.

Strong survival — 13,276 vehicles still getting MOTs in 2025, 100% of the peak.

13,289 13,276 2021 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2021–2025.

MOT History Averages

5.8
Avg MOT tests per vehicle
0.65
Avg failures per vehicle
4.1
Avg advisories per vehicle
Other model years — Mini Countryman: All Countryman years → Which year to buy? →
2011 2012 2013 2014 2015 2016 2017 2019 2020 2021 2022 2023

Or browse all models: Mini →

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Compare with another model

See how the 2018 Mini Countryman stacks up against a rival.

Average reliability — agree?