Should I check the MOT history before buying a 2018 Mini Cooper S?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2018 Mini Cooper S?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2018 Mini Cooper S?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

How many 2018 Mini Cooper S vehicles have had dangerous defects recorded?

20% of these vehicles have had a dangerous defect recorded. Search the registration on CarHunch — the full MOT history will show exactly what was flagged and whether it was resolved.

Is the 2018 Mini Cooper S reliable?

Based on MOT data from 9,746 vehicles, the 2018 Mini Cooper S has a first-time MOT pass rate of 91.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2018 Mini Cooper S?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Mini Cooper S (2018)

9,746 real MOT outcomes analysed • 91.1% first-time pass rate

2018 Mini Cooper S

CarHunch analysed 9,746 real MOT records for the 2018 Mini Cooper S. 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 Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2018 MINI Cooper S is more reliable than average, with a 90.4% first-time pass rate well above the UK's 80% benchmark, though one in five cars have recorded a dangerous defect—something to factor into your inspection checklist. Petrol and diesel variants perform similarly (90.3% and 89.6% respectively), so fuel type isn't a differentiator here.

At nearly 29,000 miles median, these cars show typical wear for their age, yet they're still racking up an average of 3.6 advisories each, suggesting minor maintenance issues are common even on well-maintained examples. Request the full MOT history from any seller and have a pre-purchase inspection focus on the most frequent failure areas; that advisory count tells you these cars need staying on top of.

The 2018 Mini Cooper S passes its MOT first time at roughly the UK average rate (91.1%) — solid but worth checking this vehicle's history carefully.

⚠️ Over 1 in 5 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

91.1%

UK average ~80%

Better than average

Dangerous (ever)

20.2%

At least once in MOT history

Check this vehicle

Avg failures / car

0.59

Over 5.7 tests on record

Moderate

Typical mileage

29k

Middle half: 21k–38k

For context

✅ Good baseline reliability. A 91.1% 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 3.6 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 9,746 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?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 9,746 Mini Cooper S cars.

Before you buy a 2018 Mini Cooper S

Based on MOT data from 9,746 vehicles — here's what to check.

📋 Check the full MOT history. 20.2% 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 →
📄 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 Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (97%)	9,475	91%	0.59
Diesel (2%)	189	89.6%	0.73
Other (1%)	80	99.1%	0.04

Colour Breakdown

Based on 95,592 Mini Cooper S vehicles registered in the UK — across all years. From DVLA registration records.

Grey 23.7%

22,660

Black 17.4%

16,594

Blue 16.8%

16,045

Silver 12.7%

12,179

Red 10.2%

9,716

White 8.3%

7,897

Green 5.9%

5,674

Orange 3.2%

3,027

Turquoise 0.9%

858

Yellow 0.7%

667

Brown 0.2%

223

Cream 0.1%

Mileage Distribution

Most 2018 Mini Cooper S 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.

28,851

typical

21,287

low mileage

37,750

high mileage

Half of all 2018 Mini Cooper S vehicles fall between 21,287 and 37,750 miles.

Is the mileage you're seeing normal?

✓ Under 21,287 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.

✓ 21,287–37,750 miles — normal for age. This is where most 2018 Mini Cooper Ss sit.

⚠ Over 50,962 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 Cooper S — Still on the Road

Almost all 2018 Mini Cooper Ss are still on the road.

Strong survival — 9,306 vehicles still getting MOTs in 2025, 99% of the peak.

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

5.7

Avg MOT tests per vehicle

0.59

Avg failures per vehicle

3.6

Avg advisories per vehicle

Other model years — Mini Cooper S: All Cooper S years → Which year to buy? →

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Compare with another model

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Average reliability — agree?