HYUNDAI I40 (2015)
Running costs, reliability data, and common problems from 6,197 real MOT tests.
Annual Cost
£1,707
£142/month
MOT Pass Rate
82%
Good
Road Tax
£265
Based on CC/year
Insurance
Grp 18-32
1685cc Diesel
Solid Option
82% pass rate, £1707/year to run. Close to the national average.
Check a specific HYUNDAI I40
Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.
Annual Running Costs
~48 mpg
Based on 1685cc
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
Get an insurance quote for this HYUNDAI I40
Compare quotes and find the best deal
Reliability Verdict
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 11 years old, 82% of HYUNDAI I40s from 2015 passed their MOT first time in 2026. That's based on 6,197 tests across the UK. The average mileage at this age is 95,529 miles.
Got a HYUNDAI I40 you're looking at?
Enter the reg plate to check its specific MOT history, mileage, and health score.
How Does It Compare?
Mileage Analysis
95,529
Average miles
81,400
Expected for age
The average 2015 HYUNDAI I40 has 95,529 miles on the clock, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.
Looking at a specific HYUNDAI I40?
Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.
Best Year to Buy?
The most reliable year is the 2018 model with a 88% MOT pass rate, while the 2011 model has the lowest at 73%. The 2015 sits between the two at 82%.
HYUNDAI I40 by Year
Similar Cars to Consider
Check a Specific Hyundai I40
Enter a reg plate to get the full MOT history, health score, and mileage verification.
Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.
About the 2015 HYUNDAI I40
The 2015 HYUNDAI I40 is a family car with a 1685cc diesel engine. 6,197 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model falls short of that benchmark.
With an average of 95,529 miles at 11 years old, HYUNDAI I40 owners drive about as much as the UK average.
2015 HYUNDAI I40 Fuel Costs
The 1685cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.
What does it cost to own a 2015 HYUNDAI I40?
Total estimated annual running cost is £1,707 (£142/month), broken down as £1037 fuel, £265 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 82% pass rate. Keeping on top of servicing will help avoid surprises.
HYUNDAI I40 Reliability Trend
Newer HYUNDAI I40s show better MOT pass rates than older ones, with an average improvement of 10 percentage points.
Buying a Used 2015 HYUNDAI I40
At 11 years old, the HYUNDAI I40 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2018 model has the highest pass rate at 88%. With 6,197 MOT tests in our data, there's strong statistical confidence in these figures.
Common Issues to Watch For
Based on the 2015 HYUNDAI I40's fuel type, age, and engine size, these are the most likely problem areas to check.
DPF (Diesel Particulate Filter)
Watch outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Watch outDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
AdBlue System
Medium riskPost-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.
EGR Valve
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Rust and Corrosion
Watch outAt 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.
Suspension Bushings
Watch outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Clutch Wear
Medium riskWith an average of 96k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2015 HYUNDAI I40 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| HYUNDAI I40(2015) | 82% | £1037 | £265 | Grp 18-32 | £1707 |
| FORD FIESTA(2013) | 77% | £905 | £30 | Grp 8-20 | £1490-£217 |
| VOLKSWAGEN GOLF(2017) | 91% | £905 | £190 | Grp 12-25 | £1350-£357 |
| VAUXHALL ASTRA(2013) | 79% | £1037 | £135 | Grp 18-32 | £1727+£20 |
| MERCEDES A-CLASS(2017) | 88% | £905 | £190 | Grp 12-25 | £1500-£207 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Hyundai Models
Explore other Hyundai cars or similar models in the same category.
HYUNDAI TUCSON
2019 · 1591cc Petrol
HYUNDAI I10
2014 · 1248cc Petrol
HYUNDAI IX35
2014 · 2000cc Diesel
FORD FIESTA
2013 · 1399cc Diesel
VOLKSWAGEN GOLF
2017 · 1598cc Diesel
VAUXHALL ASTRA
2013 · 1700cc Diesel
Related Guides
In-depth articles relevant to the Hyundai I40.
Cheapest Cars to Run in 2026: Real Data from 19.8 Million MOT Tests
9 min read
Running CostsCheapest Cars to Insure in the UK: Insurance Groups 1-10
9 min read
Running CostsCheapest Cars to Run in the UK: A Complete Cost Breakdown
11 min read
Buying GuideFord Fiesta Common Problems (2026): What to Check Before Buying
13 min read
ReliabilityFord Puma Problems: 7 Issues Owners Report (2026)
13 min read
Check a specific HYUNDAI I40
Enter the reg to see its MOT history, mileage check, and predicted costs.
Premium History Check
Buying a HYUNDAI I40? Our premium check covers:
- Stolen check (PNC)
- Outstanding finance
- Write-off history (Cat A/B/N/S)
- Previous owners count
Competitors charge £10-£20 for the same data