Kia RIO common problems and MOT failures
What goes wrong on a used Kia RIO, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 294,274 MOTs done during 2023–2025), and what to check before you buy one.
Pick the year
Most years have their own guide. The year is when the car was first registered (it’s on the logbook, or check the reg below).
20232022202120202019201820172016201520142013201220112010200920082007200620052004200320022001
What usually goes wrong with a Kia RIO?
Known faults reported by owners, mechanics and UK buying guides, in our own words. Most apply to certain years or engines only, so check which the car has.
- Cars registered in 2017 · Built mid-2017
Child lock recall (built Apr to June 2017)
On some cars built 10 April to 5 June 2017 the rear child locks might not work because a cable was the wrong length.
At the viewing: Try the child locks and ask a Kia dealer whether the recall was done.
- Cars registered 2011–2016 · All engines
Dashboard rattles
Dashboard rattles can be bad, and fixing them can mean taking the dashboard out.
At the viewing: Drive on a rough road and listen.
- Cars registered 2011–2016 · All engines
Stop-start, hill hold and ESP faults
The stop-start can work erratically, and some owners have had problems with hill hold and ESP.
At the viewing: Watch stop-start at junctions, and check that hill hold holds on a slope.
Common Kia RIO MOT failures to check
Parts flagged at MOT well above the usual rate for cars the same age, in more than one year. From the DVSA’s results for every MOT done in Great Britain during 2023–2025.
Sub-frame
up to 2.7× usualStands out on cars registered in 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 and 2015.
Rough price £300–£1,000 our estimateAt the viewing: Look underneath at the frame the suspension bolts to. Flaky rust or holes are expensive to fix.
Track rod ends
up to 16.5× usualStands out on cars registered in 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2014, 2020 and 2021.
Rough price £50–£150 (one end, plus about £30–£50 if it needs a wheel alignment) ClickMechanicAt the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.
Braking performance
up to 2.3× usualStands out on cars registered in 2005, 2006, 2007, 2008 and 2016.
Rough price £100–£350 our estimateAt the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.
Rigid brake pipes
up to 2.3× usualStands out on cars registered in 2009, 2010, 2011, 2015 and 2016.
Rough price £100–£400 our estimateAt the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.
Wipers
up to 2.1× usualStands out on cars registered in 2009, 2010, 2018, 2019 and 2020.
Rough price £15–£60 our estimateAt the viewing: Test the wipers and washers on every speed.
Ball joint dust cover
up to 5× usualStands out on cars registered in 2011, 2012, 2013 and 2014.
Rough price £60–£150 (one joint) ClickMechanicAt the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.
Kia RIO MOT pass rate by year
Of the years since 2005 with plenty of MOT tests, the 2017 Kia RIO did best (83% passed first time, 3 points above all 2017 cars) and the 2011 did worst (55%, 7 points below all 2011 cars). Older cars fail more, so compare each year with all cars registered the same year.
| Year | Pass first time | All cars that year | MOT tests |
|---|---|---|---|
| 2023 | 95% | 92% +3 | 205 (small sample) |
| 2022 | 91% | 89% +2 | 4,889 |
| 2021 | 89% | 87% +2 | 7,219 |
| 2020 | 88% | 87% +1 | 10,019 |
| 2019 | 85% | 85% +0 | 14,358 |
| 2018 | 85% | 83% +2 | 16,943 |
| 2017 | 83% | 80% +3 | 23,978 |
| 2016 | 78% | 77% +1 | 26,231 |
| 2015 | 76% | 74% +2 | 33,792 |
| 2014 | 67% | 70% -3 | 32,699 |
| 2013 | 62% | 67% -5 | 29,473 |
| 2012 | 60% | 64% -4 | 26,746 |
| 2011 | 55% | 62% -7 | 20,317 |
| 2010 | 56% | 60% -4 | 17,923 |
| 2009 | 55% | 59% -4 | 14,107 |
| 2008 | 51% | 57% -6 | 5,967 |
| 2007 | 51% | 57% -6 | 3,499 |
| 2006 | 51% | 56% -5 | 2,776 |
| 2005 | 51% | 57% -6 | 1,507 |
| 2004 | 51% | 57% -6 | 860 |
| 2003 | 50% | 57% -7 | 486 (small sample) |
| 2002 | 49% | 58% -9 | 280 (small sample) |
Questions to ask the seller before buying a Kia RIO
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the sub-frame? (Flagged at MOT 2.7× as often on the Kia RIO as on other cars the same age.)
- Any recent work on the track rod ends? (Flagged at MOT 16.5× as often on the Kia RIO as on other cars the same age.)
- Any recent work on the braking performance? (Flagged at MOT 2.3× as often on the Kia RIO as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Kia RIO?
Check the actual car: its own MOT history, whether it already shows these weak spots and what to ask the seller. Free, no sign-up.
Where this comes from: MOT figures are the DVSA’s anonymised results for every MOT test done in Great Britain during 2023–2025, grouped by the year each car was first registered. How many are on the road is from the Department for Transport’s vehicle licensing statistics. Known faults are from UK buying guides, in our own words, with links. How we score