2011 Kia RIO diesel: common problems and MOT failures
What MOT testers find on the diesel Kia RIO first registered in 2011 (diesel cars only): we looked at the 4,377 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
What goes wrong more than usual on a 2011 Kia RIO diesel?
Parts flagged at MOT more often on the 2011 Kia RIO diesel than on all cars registered in 2011.
- Track rod ends4.2× usualKia RIO19.9% All 2011 cars4.7%
Failed outright at MOT: 12.2%, against 2.4% of all 2011 cars. The rest were advisories or minor defects.
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.
- Ball joint dust cover3.7× usualKia RIO9.9% All 2011 cars2.7%
Failed outright at MOT: 5%, against 1.2% of all 2011 cars. The rest were advisories or minor defects.
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.
- Braking performance2.3× usualKia RIO12.5% All 2011 cars5.4%
Failed outright at MOT: 5.1%, against 2.1% of all 2011 cars. The rest were advisories or minor defects.
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 pipes2.1× usualKia RIO12.1% All 2011 cars5.7%
Failed outright at MOT: 2.6%, against 1% of all 2011 cars. The rest were advisories or minor defects.
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.
- Drive shaft (CV) joints2.2× usualKia RIO9.2% All 2011 cars4.1%
Failed outright at MOT: 4.8%, against 2% of all 2011 cars. The rest were advisories or minor defects.
Rough price £60–£350 our estimateAt the viewing: Drive slowly on full steering lock in both directions and listen for clicking. Look for split rubber boots behind the front wheels.
Headlights: 1.9% here, against 4.9% of all 2011 cars.
Common 2011 Kia RIO diesel MOT failures and advisories
The share of 2011 Kia RIO diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Suspension54% 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.
- Brakes42% 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.
- Tyres35% 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.
- Lights and electrics33% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Wipers, windscreen and mirrors13% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Oil and fluid leaks11% 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.
Known faults on the 2011 Kia RIO diesel
Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.
- 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.
- 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.
Questions to ask the seller before buying a 2011 Kia RIO diesel
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the track rod ends? (Flagged at MOT 4.2× as often on the 2011 Kia RIO diesel as on other cars the same age.)
- Any recent work on the ball joint dust cover? (Flagged at MOT 3.7× as often on the 2011 Kia RIO diesel as on other cars the same age.)
- Any recent work on the braking performance? (Flagged at MOT 2.3× as often on the 2011 Kia RIO diesel 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, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Kia RIO compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2023 | 199 | Tyres 8% |
| 2022 | 4,885 | Tyres 15% |
| 2021 | 7,219 | Tyres 20% |
| 2020 | 10,019 | Tyres 22% |
| 2019 | 14,358 | Tyres 25% |
| 2018 | 16,943 | Tyres 29% |
| 2017 | 23,978 | Tyres 31% |
| 2016 | 26,231 | Tyres 32% |
| 2015 | 33,792 | Tyres 32% |
| 2014 | 32,699 | Tyres 33% |
| 2013 | 29,473 | Brakes 34% |
| 2012 | 26,746 | Brakes 35% |
| 2010 | 17,923 | Suspension 54% |
| 2009 | 14,107 | Suspension 54% |
| 2008 | 5,967 | Suspension 59% |
| 2007 | 3,499 | Suspension 57% |
| 2006 | 2,776 | Suspension 56% |
| 2005 | 1,507 | Suspension 53% |
| 2004 | 860 | Lights and electrics 50% |
| 2003 | 486 | Lights and electrics 52% |
| 2002 | 280 | Brakes 57% |
| 2001 | – | Too few tests |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Kia RIO cars first registered in 2011. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score