2018 Kia Carens diesel: common problems and MOT failures
What MOT testers find on the diesel Kia Carens first registered in 2018 (diesel cars only): we looked at the 2,921 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 2018 Kia Carens diesel?
Parts flagged at MOT more often on the 2018 Kia Carens diesel than on all cars registered in 2018.
- Brake pads1.7× usualKia Carens18.9% All 2018 cars10.9%
Failed outright at MOT: 4.4%, against 2% of all 2018 cars. The rest were advisories or minor defects.
Rough price £75–£175 (one axle) ClickMechanicAt the viewing: Listen for squealing or grinding when braking, and look through the wheel at how much pad is left.
- Airbag warning light11× usualKia Carens2.2% All 2018 cars0.2%
Failed outright at MOT: 2.1%, against 0.2% of all 2018 cars. The rest were advisories or minor defects.
Rough price £10–£80 our estimateAt the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.
- Braking performance2.8× usualKia Carens3.3% All 2018 cars1.2%
Failed outright at MOT: 0.8%, against 0.4% of all 2018 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.
- Headlights2.8× usualKia Carens2.8% All 2018 cars1%
Failed outright at MOT: 2.8%, against 0.9% of all 2018 cars. The rest were advisories or minor defects.
Rough price £40–£400 our estimateAt the viewing: Check both headlights on dipped and full beam, and look for cloudy or cracked lenses.
Common 2018 Kia Carens diesel MOT failures and advisories
The share of 2018 Kia Carens diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres33% 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.
- Brakes28% 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 electrics12% 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 mirrors6% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Seats and seatbelts4% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
- Suspension4% 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.
Questions to ask the seller before buying a 2018 Kia Carens diesel
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the brake pads? (Flagged at MOT 1.7× as often on the 2018 Kia Carens diesel as on other cars the same age.)
- Any recent work on the airbag warning light? (Flagged at MOT 11× as often on the 2018 Kia Carens diesel as on other cars the same age.)
- Any recent work on the braking performance? (Flagged at MOT 2.8× as often on the 2018 Kia Carens diesel as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Kia Carens?
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 Carens compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2019 | 269 | Tyres 32% |
| 2017 | 5,533 | Tyres 32% |
| 2016 | 5,331 | Brakes 35% |
| 2015 | 6,361 | Brakes 38% |
| 2014 | 6,477 | Brakes 38% |
| 2013 | 4,112 | Brakes 40% |
| 2012 | 272 | Brakes 42% |
| 2011 | 1,008 | Suspension 49% |
| 2010 | 969 | Suspension 47% |
| 2009 | 3,208 | Suspension 54% |
| 2008 | 2,865 | Suspension 58% |
| 2007 | 1,285 | Suspension 60% |
| 2006 | 809 | Brakes 54% |
| 2005 | 434 | Brakes 55% |
| 2004 | 294 | Brakes 55% |
| 2003 | 177 | Brakes 51% |
| 2002 | – | Too few tests |
| 2001 | – | Too few tests |
| 2000 | – | 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 Carens cars first registered in 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score