CarCostCheck

KIA RIO (2006)

Running costs, reliability data, and common problems from 1,766 real MOT tests.

Annual Cost

£1,825

£152/month

MOT Pass Rate

69%

Below Avg

Road Tax

£165

Based on CC/year

Insurance

Grp 8-20

1399cc Diesel

Proceed With Caution

69% pass rate, £1825/year to run. 13 points below average.

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Diesel1399cc20 years old1,766 tests94k miles avg

Annual Running Costs

Fuel (Diesel, 1399cc)

~55 mpg

£905
Road Tax

Based on 1399cc

£165
MOT Test
£55
Predicted Repairs

Higher estimate due to low pass rate

£700
Total per year£1,825
Per month£152/mo
Per week£35/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

69% MOT pass rate(Below Avg)
0%National avg: 82%100%

Below average reliability. Budget extra for maintenance and repairs. That's 13 points below the national average of 82%. It falls below the KIA brand average of 86%.

At 20 years old, 69% of KIA RIOs from 2006 passed their MOT first time in 2026. That's based on 1,766 tests across the UK. The average mileage at this age is 94,045 miles.

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How Does It Compare?

Rank among 2006 cars449th of 575(top 78%)
Rank among KIA models429th of 472(top 91%)
vs national average-13%(82% avg)
vs 2006 cars average-4%(73% avg)
vs KIA average-17%(86% avg)

Mileage Analysis

94,045

Average miles

vs

148,000

Expected for age

The average 2006 KIA RIO has 94,045 miles on the clock, which is below the expected 148,000 miles for a 20-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 2021 model with a 95% MOT pass rate, while the 2004 model has the lowest at 64%. The 2006 sits between the two at 69%.

KIA RIO by Year

YearPass RateTestsAvg Mileage
202295%23324,400 mi
202195%3,31021,750 mi
202091%5,12126,035 mi
201989%7,84132,113 mi
201890%9,26040,153 mi
201788%13,14749,022 mi
201685%14,17852,518 mi
201584%18,61960,725 mi
201478%19,32870,276 mi
201376%17,75677,717 mi
201274%16,46685,239 mi
201172%12,39482,872 mi
201072%11,02587,460 mi
200971%8,76485,404 mi
200868%3,80092,973 mi
200767%2,36393,975 mi
200669%1,76694,045 mi
200569%1,01984,192 mi
200464%62568,036 mi
200365%30072,062 mi
200268%18468,384 mi
200167%4259,195 mi

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About the 2006 KIA RIO

The 2006 KIA RIO is a small family car with a 1399cc diesel engine. 1,766 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It sits in the bottom 78% of 2006 cars for MOT pass rates.

With an average of 94,045 miles at 20 years old, KIA RIO owners tend to use this car less than the typical driver.

2006 KIA RIO Fuel Costs

The 1399cc diesel engine offers a reasonable balance between performance and economy. 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 2006 KIA RIO?

Total estimated annual running cost is £1,825 152/month), broken down as £905 fuel, £165 road tax, £55 MOT, and £700 predicted repairs. The higher repair estimate reflects the 69% MOT pass rate. Cars in this bracket tend to need work on suspension, brakes, and emissions components.

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 2006 KIA RIO

At 20 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%.

Common Issues to Watch For

Based on the 2006 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 94k 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.

Higher Than Average Failure Rate

Watch out

With a 69% MOT pass rate, this model fails more often than most. Budget for unexpected repairs and get a thorough pre-purchase inspection.

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 2006 KIA RIO stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
KIA RIO(2006)69%£905£165Grp 8-20£1825
FORD FIESTA(2007)72%£905£30Grp 8-20£1490-£335
VOLKSWAGEN GOLF(2007)73%£1037£135Grp 18-32£1727-£98
VAUXHALL ASTRA(2008)72%£905£30Grp 8-20£1490-£335
VAUXHALL CORSA(2007)72%£905£30Grp 8-20£1490-£335

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.

Related Kia Models

Explore other Kia cars or similar models in the same category.

Related Guides

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