2016 Hyundai I40: common problems and MOT failures
What MOT testers find on the Hyundai I40 first registered in 2016: we looked at the 3,355 MOTs these cars had during 2025. Plus known faults and what to look at before you buy one.
What goes wrong more than usual on a 2016 Hyundai I40?
Parts flagged at MOT more often on the 2016 Hyundai I40 than on all cars registered in 2016.
- Braking performance2.2× usualHyundai I405.5% All 2016 cars2.5%
Failed outright at MOT: 1.6%, against 0.8% of all 2016 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.
- Engine oil leaks1.8× usualHyundai I405% All 2016 cars2.8%
Failed outright at MOT: 0.1%, against 0.1% of all 2016 cars. The rest were advisories or minor defects.
Rough price £80–£600 our estimateAt the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.
- Rigid brake pipes2.1× usualHyundai I404% All 2016 cars1.9%
Failed outright at MOT: 0.9%, against 0.2% of all 2016 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.
Shock absorbers: 1% here, against 4.3% of all 2016 cars.
Common 2016 Hyundai I40 MOT failures and advisories
The share of 2016 Hyundai I40 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres30% 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.
- Suspension12% 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.
- Lights and electrics11% 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.
- Oil and fluid leaks6% 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 2016 Hyundai I40
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
Footwell water leak
Some cars leak into the passenger front footwell because of a broken seal.
At the viewing: Feel the passenger-side carpet for damp.
- All engines
Mirror motors, sat nav and steering wheel wear
Door mirror motors fail (the whole mirror has to be replaced), the sat nav can fail after an update, and the steering wheel covering can peel.
At the viewing: Fold and adjust both mirrors, test the sat nav and look at the steering wheel.
Questions to ask the seller before buying a 2016 Hyundai I40
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the braking performance? (Flagged at MOT 2.2× as often on the 2016 Hyundai I40 as on other cars the same age.)
- Any recent work on the engine oil leaks? (Flagged at MOT 1.8× as often on the 2016 Hyundai I40 as on other cars the same age.)
- Any recent work on the rigid brake pipes? (Flagged at MOT 2.1× as often on the 2016 Hyundai I40 as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Hyundai I40?
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 Hyundai I40 compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2019 | 462 | Tyres 30% |
| 2018 | 1,130 | Tyres 30% |
| 2017 | 2,456 | Tyres 32% |
| 2015 | 3,366 | Tyres 33% |
| 2014 | 3,371 | Brakes 36% |
| 2013 | 2,474 | Brakes 39% |
| 2012 | 2,803 | Suspension 45% |
| 2011 | 486 | Suspension 45% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2025, counting the MOTs of Hyundai I40 cars first registered in 2016. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score