How much does a 2018 HYUNDAI I800 cost to run?

Estimated annual running cost is £1,845 (£154/month), including £1245 fuel, £195 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2018 HYUNDAI I800?

The 2018 HYUNDAI I800 has a 82% MOT pass rate based on 2,077 tests in 2026. This ranks 591 out of 649 cars from 2018.

Which year HYUNDAI I800 is most reliable?

The 2019 HYUNDAI I800 has the highest MOT pass rate at 86%. The least reliable year is 2008 at 67%.

HYUNDAI I800 (2018)

Q: Is the 2018 HYUNDAI I800 reliable?

Good reliability. Occasional issues but generally solid. 82% of HYUNDAI I800s from 2018 passed their MOT first time in 2026, based on 2,077 tests. That's 0 points above the national average of 82%.

Q: What is the average mileage for a 2018 HYUNDAI I800?

The average mileage for a 2018 HYUNDAI I800 is 72,297 miles, which is above the expected 59,200 miles for a 8-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.

Running costs, reliability data, and common problems from 2,077 real MOT tests.

Annual Cost

£1,845

£154/month

MOT Pass Rate

82%

Good

Road Tax

£195

Flat rate/year

Insurance

Grp 25-38

2497cc Diesel

Solid Option

82% pass rate, £1845/year to run. Close to the national average.

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Diesel2497cc8 years old2,077 tests72k miles avg

Annual Running Costs

Fuel (Diesel, 2497cc)

~40 mpg

£1,245

Road Tax

Flat rate (post-2017)

£195

MOT Test

£55

Predicted Repairs

£350

Total per year£1,845

Per month£154/mo

Per week£35/wk

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

82% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.

At 8 years old, 82% of HYUNDAI I800s from 2018 passed their MOT first time in 2026. That's based on 2,077 tests across the UK. The average mileage at this age is 72,297 miles.

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How Does It Compare?

Rank among 2018 cars591th of 649(top 91%)

Rank among HYUNDAI models245th of 417(top 59%)

vs national average+0%(82% avg)

vs 2018 cars average-7%(89% avg)

vs HYUNDAI average-1%(83% avg)

Mileage Analysis

72,297

Average miles

59,200

Expected for age

The average 2018 HYUNDAI I800 has 72,297 miles on the clock, which is above the expected 59,200 miles for a 8-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 2018 sits between the two at 82%.

HYUNDAI I800 by Year

Year	Pass Rate	Tests	Avg Mileage
2020	78%	124	39,129 mi
2019	86%	3,210	48,745 mi
2018	82%	2,077	72,297 mi
2017	81%	2,440	85,059 mi
2016	79%	1,923	90,577 mi
2015	77%	253	104,422 mi
2014	74%	288	119,694 mi
2013	71%	417	99,935 mi
2012	73%	1,920	116,207 mi
2011	75%	938	108,829 mi
2010	72%	816	113,107 mi
2009	71%	325	123,313 mi
2008	67%	277	124,551 mi

Similar Cars to Consider

FORD TRANSIT

2016 · 2198cc Diesel

£1,900/year

80%

-2%

FORD KUGA

2019 · 1997cc Diesel

£1,482/year

91%

+9%

LAND ROVER RANGE ROVER EVOQUE

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£1,427/year

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FORD TRANSIT CUSTOM

2019 · 2000cc Diesel

£1,632/year

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About the 2018 HYUNDAI I800

The 2018 HYUNDAI I800 is a large car with a 2497cc diesel engine. 2,077 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It sits in the bottom 91% of 2018 cars for MOT pass rates.

With an average of 72,297 miles at 8 years old, HYUNDAI I800 owners cover more miles than the average driver.

2018 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 2018 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 82% 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 2018 HYUNDAI I800

At 8 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 2018 HYUNDAI I800's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger 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 risk

Shock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.

Service History

Low risk

Always 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 2018 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(2018)	82%	£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.