HYUNDAI I800 (2017)
Running costs, reliability data, and common problems from 2,440 real MOT tests.
Annual Cost
£1,845
£154/month
MOT Pass Rate
81%
Good
Road Tax
£195
Flat rate/year
Insurance
Grp 25-38
2497cc Diesel
Solid Option
81% pass rate, £1845/year to run. Close to the national average.
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Annual Running Costs
~40 mpg
Flat rate (post-2017)
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 9 years old, 81% of HYUNDAI I800s from 2017 passed their MOT first time in 2026. That's based on 2,440 tests across the UK. The average mileage at this age is 85,059 miles.
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How Does It Compare?
Mileage Analysis
85,059
Average miles
66,600
Expected for age
The average 2017 HYUNDAI I800 has 85,059 miles on the clock, which is above the expected 66,600 miles for a 9-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
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Best Year to Buy?
The most reliable year is the 2019 model with a 86% MOT pass rate, while the 2008 model has the lowest at 67%. The 2017 sits between the two at 81%.
HYUNDAI I800 by Year
Similar Cars to Consider
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About the 2017 HYUNDAI I800
The 2017 HYUNDAI I800 is a large car with a 2497cc diesel engine. 2,440 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It sits in the bottom 87% of 2017 cars for MOT pass rates.
With an average of 85,059 miles at 9 years old, HYUNDAI I800 owners cover more miles than the average driver.
2017 HYUNDAI I800 Fuel Costs
The 2497cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 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 2017 HYUNDAI I800?
Total estimated annual running cost is £1,845 (£154/month), broken down as £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 81% pass rate. Keeping on top of servicing will help avoid surprises.
HYUNDAI I800 Reliability Trend
Newer HYUNDAI I800s show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2017 HYUNDAI I800
At 9 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2019 model has the highest pass rate at 86%.
Common Issues to Watch For
Based on the 2017 HYUNDAI I800'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.
Dual Mass Flywheel
Watch outLarger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
Clutch Wear
Medium riskWith an average of 85k 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 2017 HYUNDAI I800 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| HYUNDAI I800(2017) | 81% | £1245 | £195 | Grp 25-38 | £1845 |
| FORD TRANSIT(2016) | 80% | £1245 | £250 | Grp 25-38 | £1900+£55 |
| FORD KUGA(2019) | 91% | £1037 | £190 | Grp 18-32 | £1482-£363 |
| LAND ROVER RANGE ROVER EVOQUE(2016) | 90% | £1037 | £135 | Grp 18-32 | £1427-£418 |
| FORD TRANSIT CUSTOM(2019) | 87% | £1037 | £190 | Grp 18-32 | £1632-£213 |
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.
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