Is the 2012 KIA RIO reliable?

Average reliability. Expect some repairs as it ages. 74% of KIA RIOs from 2012 passed their MOT first time in 2026, based on 16,466 tests. That's 8 points below the national average of 82%.

How much does a 2012 KIA RIO cost to run?

Estimated annual running cost is £1,480 (£123/month), including £905 fuel, £20 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2012 KIA RIO?

The 2012 KIA RIO has a 74% MOT pass rate based on 16,466 tests in 2026. This ranks 571 out of 685 cars from 2012.

Which year KIA RIO is most reliable?

The 2021 KIA RIO has the highest MOT pass rate at 95%. The least reliable year is 2004 at 64%.

What is the average mileage for a 2012 KIA RIO?

The average mileage for a 2012 KIA RIO is 85,239 miles, which is in line with the expected 103,600 miles for a 14-year-old car, suggesting normal everyday use.

KIA RIO (2012)

Running costs, reliability data, and common problems from 16,466 real MOT tests.

Annual Cost

£1,480

£123/month

MOT Pass Rate

74%

Average

Road Tax

£20

Based on CC/year

Insurance

Grp 5-15

1120cc Diesel

Check Carefully

74% pass rate, £1480/year to run. 8 points below average.

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Diesel1120cc14 years old16,466 tests85k miles avg

Annual Running Costs

Fuel (Diesel, 1120cc)

~55 mpg

£905

Road Tax

Based on 1120cc

£20

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£1,480

Per month£123/mo

Per week£28/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

74% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 8 points below the national average of 82%. It falls below the KIA brand average of 86%.

At 14 years old, 74% of KIA RIOs from 2012 passed their MOT first time in 2026. That's based on 16,466 tests across the UK. The average mileage at this age is 85,239 miles.

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How Does It Compare?

Rank among 2012 cars571th of 685(top 83%)

Rank among KIA models387th of 472(top 82%)

vs national average-8%(82% avg)

vs 2012 cars average-4%(78% avg)

vs KIA average-12%(86% avg)

Mileage Analysis

85,239

Average miles

103,600

Expected for age

The average 2012 KIA RIO has 85,239 miles on the clock, which is in line with the expected 103,600 miles for a 14-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2021 model with a 95% MOT pass rate, while the 2004 model has the lowest at 64%. The 2012 sits between the two at 74%.

KIA RIO by Year

Year	Pass Rate	Tests	Avg Mileage
2022	95%	233	24,400 mi
2021	95%	3,310	21,750 mi
2020	91%	5,121	26,035 mi
2019	89%	7,841	32,113 mi
2018	90%	9,260	40,153 mi
2017	88%	13,147	49,022 mi
2016	85%	14,178	52,518 mi
2015	84%	18,619	60,725 mi
2014	78%	19,328	70,276 mi
2013	76%	17,756	77,717 mi
2012	74%	16,466	85,239 mi
2011	72%	12,394	82,872 mi
2010	72%	11,025	87,460 mi
2009	71%	8,764	85,404 mi
2008	68%	3,800	92,973 mi
2007	67%	2,363	93,975 mi
2006	69%	1,766	94,045 mi
2005	69%	1,019	84,192 mi
2004	64%	625	68,036 mi
2003	65%	300	72,062 mi
2002	68%	184	68,384 mi
2001	67%	42	59,195 mi

Similar Cars to Consider

FORD FIESTA

2013 · 1399cc Diesel

£1,490/year

77%

+3%

VOLKSWAGEN GOLF

2014 · 1598cc Diesel

£1,445/year

87%

+13%

VAUXHALL ASTRA

2012 · 1248cc Diesel

£1,490/year

78%

+4%

VOLKSWAGEN POLO

2014 · 1199cc Diesel

£1,340/year

80%

+6%

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About the 2012 KIA RIO

The 2012 KIA RIO is a city car with a 1120cc diesel engine. 16,466 of these vehicles were MOT tested in 2026, making it one of the most commonly tested cars on UK roads. It sits in the bottom 83% of 2012 cars for MOT pass rates.

With an average of 85,239 miles at 14 years old, KIA RIO owners drive about as much as the UK average.

2012 KIA RIO Fuel Costs

The modest 1120cc diesel engine keeps fuel costs low, which is a real advantage for a city car. Expect around 55 mpg in mixed driving, which works out to roughly £905 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 2012 KIA RIO?

Total estimated annual running cost is £1,480 (£123/month), broken down as £905 fuel, £20 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 74% pass rate. Keeping on top of servicing will help avoid surprises.

KIA RIO Reliability Trend

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

Buying a Used 2012 KIA RIO

At 14 years old, the KIA RIO is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2021 model has the highest pass rate at 95%. With 16,466 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

Based on the 2012 KIA RIO'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.

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.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Medium risk

With an average of 85k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

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 2012 KIA RIO stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
KIA RIO(2012)	74%	£905	£20	Grp 5-15	£1480
FORD FIESTA(2013)	77%	£905	£30	Grp 8-20	£1490+£10
VOLKSWAGEN GOLF(2014)	87%	£905	£135	Grp 12-25	£1445-£35
VAUXHALL ASTRA(2012)	78%	£905	£30	Grp 8-20	£1490+£10
VOLKSWAGEN POLO(2014)	80%	£905	£30	Grp 5-15	£1340-£140

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.