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Model reliability
Hyundai I800 reliability
The Hyundai I800 fails its MOT more often than most cars up to 5 years old: 31.8% of 3,113 tests failed in 2023, against 14% on average.
Up to 5 years old
31.8% failed their MOT
From 3,113 MOT tests of Hyundai I800s this age.
Where it does worse than other cars this age
Fails 16× as oftenHeadlamps11.1% vs 0.7%Fix about £30
Fails 6× as oftenHeadlamp aim9.5% vs 1.7%Fix about £30
Fails 2× as oftenWipers5.2% vs 2.1%
Fails 14× as oftenPosition lamps4.3% vs 0.3%Fix about £30
Advised 49% more oftenMechanical brake components18% vs 12.1%
6 to 10 years old
35.2% failed their MOT
From 2,969 MOT tests of Hyundai I800s this age.
Where it does worse than other cars this age
Fails 4× as oftenHeadlamp aim10.2% vs 2.5%Fix about £30
Fails 5× as oftenPosition lamps7.8% vs 1.5%Fix about £30
Fails 4× as oftenBrake performance7.2% vs 1.9%
Fails 3× as oftenHeadlamps5.6% vs 1.7%Fix about £30
Advised 40% more oftenMechanical brake components23.2% vs 16.6%
Advised 4× as oftenRegistration plate lamp(s)8.7% vs 2.1%Fix about £30
Over 10 years old
43.5% failed their MOT
From 2,333 MOT tests of Hyundai I800s this age.
Where it does worse than other cars this age
Fails 3× as oftenBrake performance15.1% vs 5.8%
Fails 47% more oftenPosition lamps7.8% vs 5.3%Fix about £30
Fails 49% more oftenSuspension arms7.6% vs 5.1%
Fails 39% more oftenHeadlamp aim7.5% vs 5.4%Fix about £30
Advised 30% more oftenMechanical brake components22% vs 16.9%
Advised 52% more oftenRigid brake pipes12.6% vs 8.3%Fix about £120
Advised 88% more oftenRegistration plate lamp(s)9.8% vs 5.2%Fix about £30
Advised 57% more oftenAnti-roll bars9.4% vs 6%
Safety recalls
1 DVSA recall for the Hyundai I800
Most cover a batch of cars built in a set period, and dealers fix them free. Sweep’s check shows the recalls for a car’s age and whether the DVSA has one outstanding.
The rear inlet and outlet heater coolant hoses may melt due to the diesel particulate filter overheating during regeneration
The rear inlet and outlet heater coolant hoses may melt due to the diesel particulate filter overheating during regeneration
Fix: Install modified hoses.
Recalled models: i800 · 5,735 vehicles
DVSA vehicle safety recalls (Crown copyright, Open Government Licence).
Checking a Hyundai I800 before you buy
Look at the parts above at the viewing, and read the car’s own MOT history: advisories for the same parts suggest the problem is already starting. Sweep’s free check shows every MOT, advisory and mileage reading for a registration.
Source: DVSA anonymised MOT tests 2023 (Open Government Licence v3.0). Failure rates compare this model with all cars in the same age band. Fix prices are typical independent-garage estimates.