Used car guide

2003 Kia RIO: common problems and what to check

What gets flagged at MOT on 2003 Kia RIOs, from 106 tests in 2025, plus known faults and what to look at before you buy one.

Small sample: only 106 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.

106MOT tests in 2025
55%pass first time (all 2003 cars: 59%)
2,900typical miles a year
52%had brakes flagged

What gets flagged at MOT

The share of 2003 Kia RIO MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Brakes
    52% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Lights and electrics
    47% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Suspension
    42% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Oil and fluid leaks
    33% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

  • Tyres
    30% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Driveshafts and joints
    19% of testsRough price £60–£350

    At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.

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Other years

YearMOT testsMost flagged
2023200Tyres 8%
20224,657Tyres 15%
20213,649Tyres 23%
20203,392Tyres 27%
20194,853Tyres 28%
20185,718Tyres 30%
20178,022Tyres 31%
20168,810Tyres 32%
201511,334Tyres 32%
201410,800Tyres 33%
20139,587Brakes 34%
20128,599Suspension 38%
20116,386Suspension 53%
20105,435Suspension 57%
20094,180Suspension 57%
20081,662Suspension 61%
2007932Suspension 58%
2006727Suspension 58%
2005369Suspension 55%
2004198Lights and electrics 47%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2003 Kia RIOs registered in 2003. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score