Used car guide

2020 Hyundai I800: common problems and MOT failures

What MOT testers find on the Hyundai I800 first registered in 2020: we looked at the 220 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 220 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

220MOTs of 2020 cars, done in 2023–2025
65%pass first time (all 2020 cars: 87%)
8,100typical miles a year
28%had lights and electrics flagged

Common 2020 Hyundai I800 MOT failures and advisories

The share of 2020 Hyundai I800 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Lights and electrics
    28% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Tyres
    27% 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.

  • Brakes
    17% 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.

  • Wipers, windscreen and mirrors
    11% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

  • Seats and seatbelts
    4% of testsRough price £80–£250

    At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.

  • Exhaust and emissions
    1% of testsRough price £100–£1,200

    At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.

Questions to ask the seller before buying a 2020 Hyundai I800

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Can I see the service history and receipts for any big jobs?

Looking at a Hyundai I800?

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Other years

Every year of the Hyundai I800 compared

YearMOT testsMost flagged
20195,407Lights and electrics 25%
20183,528Lights and electrics 30%
20174,030Lights and electrics 34%
20163,146Lights and electrics 37%
2015451Lights and electrics 39%
2014457Brakes 42%
2013621Brakes 44%
20122,811Brakes 47%
20111,527Brakes 47%
20101,277Brakes 49%
2009480Lights and electrics 54%
2008344Lights and electrics 47%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Hyundai I800 cars first registered in 2020. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score