CarCostCheck

MINI COOPER (2018)

Running costs, common problems, and reliability data based on 55,706 real MOT tests in 2024.

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MOT Pass Rate

92%

Total Tests (2024)

55,706

Avg Mileage

37,401 mi

Est. Annual Cost

£1,582

Is the 2018 MINI COOPER reliable?

Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the MINI brand average of 84%.

At 6 years old, 92% of MINI COOPERs from 2018 passed their MOT first time in 2024. That's based on 55,706 tests across the UK. The average mileage at this age is 37,401 miles.

How does the 2018 MINI COOPER compare?

Rank among all 2018 cars208th out of 649(top 32%)
Rank among all MINI models49th out of 341(top 14%)
vs national average+10% (82% avg)
vs 2018 cars average+3% (89% avg)
vs MINI average+8% (84% avg)

Mileage Analysis

The average 2018 MINI COOPER has 37,401 miles on the clock, which is in line with the expected 44,400 miles for a 6-year-old car, suggesting normal everyday use.

Best year to buy a MINI COOPER?

The most reliable year is the 2022 model with a 96% MOT pass rate, while the 2002 model has the lowest at 65%. The 2018 sits between the two at 92%.

How much does a 2018 MINI COOPER cost to run?

⛽Fuel (Petrol, 1499cc)
£1,137
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,582
Per month£132/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

MINI COOPER by Year

YearPass RateTestsAvg Mileage
202296%2,09816,905 mi
202194%32,53220,555 mi
202093%34,51324,798 mi
201992%52,14030,727 mi
201892%55,70637,401 mi
201790%49,26045,506 mi
201690%47,46352,742 mi
201589%46,05460,514 mi
201488%34,37566,746 mi
201385%12,50166,222 mi
201285%6,52572,835 mi
201182%2,18584,424 mi
201082%1,76685,375 mi
200974%1,66887,261 mi
200874%1,49592,691 mi
200771%1,81293,206 mi
200673%91491,442 mi
200569%79096,816 mi
200469%708102,681 mi
200373%40399,443 mi
200265%30498,236 mi
200169%81102,071 mi
199984%11417,301 mi

Checking a specific MINI COOPER?

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About the 2018 MINI COOPER

The 2018 MINI COOPER is a small family car with a 1499cc petrol engine. 55,706 of these vehicles were MOT tested in 2024, making it one of the most commonly tested cars on UK roads. Among all cars from 2018, the average MOT pass rate is 89%, and this model beats that benchmark.

With an average of 37,401 miles at 6 years old, MINI COOPER owners drive about as much as the UK average.

2018 MINI COOPER Fuel Costs

The 1499cc petrol engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).

What does it cost to own a 2018 MINI COOPER?

Total estimated annual running cost is £1,582 (£132/month), broken down as £1137 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

MINI COOPER Reliability Trend

Newer MINI COOPERs show better MOT pass rates than older ones, with an average improvement of 17 percentage points.

Buying a Used 2018 MINI COOPER

At 6 years old, the MINI COOPER offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2022 model has the highest pass rate at 96%. With 55,706 MOT tests in our data, there's strong statistical confidence in these figures.

Alternatives to the 2018 MINI COOPER

The MINI COOPER is actually the most reliable option among similar petrol small family cars from this era. Here are comparable petrol cars with similar engines: