Is the 2018 MINI COUNTRYMAN reliable?

Excellent reliability. Very few MOT failures. 92% of MINI COUNTRYMANs from 2018 passed their MOT first time in 2026, based on 24,915 tests. That's 10 points above the national average of 82%.

How much does a 2018 MINI COUNTRYMAN cost to run?

Estimated annual running cost is £1,487 (£124/month), including £1037 fuel, £195 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2018 MINI COUNTRYMAN?

The 2018 MINI COUNTRYMAN has a 92% MOT pass rate based on 24,915 tests in 2026. This ranks 215 out of 649 cars from 2018.

Which year MINI COUNTRYMAN is most reliable?

The 2022 MINI COUNTRYMAN has the highest MOT pass rate at 96%. The least reliable year is 2011 at 80%.

MINI COUNTRYMAN (2018)

Q: What is the average mileage for a 2018 MINI COUNTRYMAN?

The average mileage for a 2018 MINI COUNTRYMAN is 43,233 miles, which is below the expected 59,200 miles for a 8-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 24,915 real MOT tests.

Annual Cost

£1,487

£124/month

MOT Pass Rate

92%

Excellent

Road Tax

£195

Flat rate/year

Insurance

Grp 18-32

1995cc Diesel

Great Choice

92% pass rate, £1487/year to run. 10 points above average.

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Diesel1995cc8 years old24,915 tests43k miles avg

Annual Running Costs

Fuel (Diesel, 1995cc)

~48 mpg

£1,037

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,487

Per month£124/mo

Per week£29/wk

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

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Reliability Verdict

92% MOT pass rate(Excellent)

0%National avg: 82%100%

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 8 years old, 92% of MINI COUNTRYMANs from 2018 passed their MOT first time in 2026. That's based on 24,915 tests across the UK. The average mileage at this age is 43,233 miles.

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How Does It Compare?

Rank among 2018 cars215th of 649(top 33%)

Rank among MINI models52th of 341(top 15%)

vs national average+10%(82% avg)

vs 2018 cars average+3%(89% avg)

vs MINI average+8%(84% avg)

Mileage Analysis

43,233

Average miles

59,200

Expected for age

The average 2018 MINI COUNTRYMAN has 43,233 miles on the clock, which is below the expected 59,200 miles for a 8-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2022 model with a 96% MOT pass rate, while the 2011 model has the lowest at 80%. The 2018 sits between the two at 92%.

MINI COUNTRYMAN by Year

Year	Pass Rate	Tests	Avg Mileage
2022	96%	889	18,725 mi
2021	93%	13,918	22,319 mi
2020	93%	15,288	27,202 mi
2019	93%	25,254	33,911 mi
2018	92%	24,915	43,233 mi
2017	92%	20,256	49,575 mi
2016	91%	16,693	53,907 mi
2015	89%	16,892	61,874 mi
2014	89%	24,209	69,214 mi
2013	87%	5,175	74,494 mi
2012	86%	1,340	81,209 mi
2011	80%	1,174	91,168 mi
2010	89%	177	86,933 mi
2008	94%	34	100,473 mi

Similar Cars to Consider

VOLKSWAGEN GOLF

2017 · 1598cc Diesel

£1,350/year

91%

-1%

FORD FOCUS

2019 · 1499cc Diesel

£1,500/year

89%

-3%

FORD TRANSIT

2017 · 1995cc Diesel

£1,632/year

81%

-11%

VOLKSWAGEN POLO

2018 · 1598cc Diesel

£1,500/year

84%

-8%

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About the 2018 MINI COUNTRYMAN

The 2018 MINI COUNTRYMAN is a family car with a 1995cc diesel engine. 24,915 of these vehicles were MOT tested in 2026, 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 43,233 miles at 8 years old, MINI COUNTRYMAN owners tend to use this car less than the typical driver.

2018 MINI COUNTRYMAN Fuel Costs

The 1995cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2018 MINI COUNTRYMAN?

Total estimated annual running cost is £1,487 (£124/month), broken down as £1037 fuel, £195 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 COUNTRYMAN Reliability Trend

Newer MINI COUNTRYMANs show better MOT pass rates than older ones, with an average improvement of 6 percentage points.

Buying a Used 2018 MINI COUNTRYMAN

At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2022 model has the highest pass rate at 96%. With 24,915 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2018 MINI COUNTRYMAN's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Suspension Wear

Medium risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2018 MINI COUNTRYMAN stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MINI COUNTRYMAN(2018)	92%	£1037	£195	Grp 18-32	£1487
VOLKSWAGEN GOLF(2017)	91%	£905	£190	Grp 12-25	£1350-£137
FORD FOCUS(2019)	89%	£905	£190	Grp 12-25	£1500+£13
FORD TRANSIT(2017)	81%	£1037	£190	Grp 18-32	£1632+£145
VOLKSWAGEN POLO(2018)	84%	£905	£190	Grp 12-25	£1500+£13

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.