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Hyundai Tucson Mk4 (NX4) (2021-present) reliability

At a glance

Hyundai Tucson Mk4 (NX4) built around 2021: about average at the MOT

Hyundai Tucson Mk4 (NX4) models built around 2021 fail their MOT about as often as similar cars the same age.

Looking at a Hyundai Tucson Mk4 (NX4) right now?

Enter its number plate to see its full MOT history, risk rating and running costs.

Key figure

10% of MOT tests on Hyundai Tucson Mk4 (NX4) models built around 2021 ended in a fail (retests included), against 11% for similar cars the same age.

Most common issue

The most common MOT issue on Hyundai Tucson Mk4 (NX4) models built around 2021 involves the tyres.

Hyundai Tucson Mk4 (NX4)
average reliability2021-presentSUVHYBRID ELECTRIC / PETROL / UNKNOWN

Based on 44,928 tests of Tucson models registered 2021+.

About 1 in 10 hybrid electric Tucson cars registered in 2022 (9.7%) failed their first MOT.

Based on 15,463 first MOTs (DVSA MOT results, 2025).

1.6% of Tucson Mk4 (NX4) MOTs failed and still hadn't passed 3 days later. That's for cars built around 2021 (4 years old), all fuels combined.

Based on 15,014 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.

About 1 in 40 Tucson Mk4 (NX4) MOTs (2.5%) found at least one dangerous defect. These are cars built around 2021 (4 years old).

Based on 15,014 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.

Mk4 (NX4) fail rate by age

Below typicalAbove typicalHigh (28% or more)Highest fail rateUK average for cars this age
Age / builtFail rateMOT tests
3 yearsbuilt around 2022
29,9149.4%
4 yearsbuilt around 2021
15,0149.9%

Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 4 years old.

How the Tucson Mk4 (NX4) compares

At each age below, see how the Tucson Mk4 (NX4) holds up against other cars the same age. The averages combine all fuel types.

Based on 70,937 tests across 10 Hyundai models, built around 2021 (4 years old).

Below typicalAbove typicalHigh (28% or more)Highest fail rateHyundai average
Age / builtFail rateMOT tests
3 yearsbuilt around 2022
29,9149.4%
4 yearsbuilt around 2021
15,0149.9%

Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.

What to check before viewing

The model's most common MOT issues, turned into things you can ask about or look for.

Brake pads

High priority

Ask when the pads were last replaced and check the warning-light history.

Brake discs

High priority

Ask for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.

Tyres

Worth checking

Check tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.

Suspension bushes and joints

Worth checking

Listen for knocks over speed bumps and ask about recent control-arm or anti-roll-bar work.

Vehicle-specific check

Worth checking

Check the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.

Other SUVs to compare

Other SUVs, with each one's figures taken at the same age as the Tucson Mk4 (NX4).

  1. 1

    Lexus UX

    Same body type, tested at the same age

    Fail rate
    6%
    Fail, no pass in 3 days
    0.7%
    Dangerous
    1.8%

    Lower fail rate: 6.0%, against 9.9% for the Hyundai Tucson Mk4 (NX4), both built around 2021.

    4,973 MOT tests on cars built around 2021

  2. 2

    Volkswagen ID4 1ST Edition

    Same body type, tested at the same age

    Fail rate
    11.8%

    No clear edge over the Hyundai Tucson Mk4 (NX4) on these figures.

    2 critical recall campaigns matching this model/build period.

    1,711 MOT tests on cars built around 2021

  3. 3

    Toyota Yaris Cross

    Same body type, tested at the same age

    Fail rate
    7%
    Fail, no pass in 3 days
    0.6%
    Dangerous
    1.2%

    Lower fail rate: 7.0%, against 9.9% for the Hyundai Tucson Mk4 (NX4), both built around 2021.

    1,425 MOT tests on cars built around 2021

  4. 4

    Lexus RX

    Same body type, tested at the same age

    Fail rate
    5.1%
    Fail, no pass in 3 days
    0.5%
    Dangerous
    1.7%
    Still registered at 10 years
    90.4%

    Lower fail rate: 5.1%, against 9.9% for the Hyundai Tucson Mk4 (NX4), both built around 2021.

    1,784 MOT tests on cars built around 2021

Fail rate
= the share of MOT tests that ended in a fail. Retests count as tests.
Fail, no pass in 3 days
= the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
Dangerous
= the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
Still registered at 10 years
= the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.

Recall context

17 recalls in all

7 of the 17 Tucson Mk4 (NX4) recalls cover cars built in these years.

  • 7 recalls

Top concerns

  • The side curtain airbag could potentially be assembled in a twisted condition
  • The subject vehicles may experience a loss of brake assistance and brake performance may e reduced. The foot brake will
  • Certain Tucson vehicles equipped with rear door power windows may experience a malfunction of the anti-pinch function du

For the exact car, check GOV.UK's recall checker with the number plate.

What has gone wrong on Tucson Mk4 (NX4) cars built around 2021

The share of petrol cars that have ever failed an MOT on each part of the car. Based on 92 cars.

Structural systems

Suspension
4%
Emissions
1%

Wear items

Tyres
8%
Brakes
4%
Mk4 (NX4) variants compared

Tucson Mk4 (NX4) variants built around 2021

The fail rate for each Tucson Mk4 (NX4) variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.

Hybrid electric

  • TUCSON ULTIMATE T-GDI HEV AUTO7.8%2,368 tests
  • TUCSON PREMIUM T-GDI HEV AUTO8.1%1,513 tests
  • TUCSON SE CONNECT T-GDI HEV A8.7%701 tests
  • TUCSON SE CONNECT T-GDI MHEV10.6%368 tests
  • TUCSON ULTIMATE TGDI PHEV 4X4A10.3%348 tests
  • TUCSON PREMIUM T-GDI MHEV S-A10.4%268 tests
  • TUCSON ULTIMATE T-GDI MHEV S-A10.8%241 tests
  • TUCSON PREMIUM TGDI PHEV 4X4 A10.7%224 tests
  • TUCSON SE CONNECT TGDI MHEV SA11.9%218 tests
  • TUCSON N LINE T-GDI HEV AUTO8.5%200 tests

Petrol

  • TUCSON SE CONNECT T-GDI8.9%1,634 tests
  • TUCSON PREMIUM T-GDI8.7%1,399 tests
  • TUCSON14.7%977 tests
  • TUCSON ULTIMATE T-GDI9.4%861 tests
  • TUCSON N LINE T-GDI6.0%282 tests
  • TUCSON N LINE S T-GDI4.9%203 tests

Unknown fuel

  • TUCSON SE NAV48V MHEV CRDI 2WD15.9%1,414 tests
  • TUCSON SE NV48V MHEV CRDI2WDSA13.5%421 tests
All generations of this modelPlenty of data

Most common issues on Hyundai Tucsons of this age

This list covers every Hyundai Tucson built around 2021, whichever generation it is. We don't have a defect list for the Mk4 (NX4) on its own.

Most common advisories and fails

In order of the share of MOT tests that recorded each one

  1. 1
    Advisory

    Tyre worn close to the legal limit or worn on the edge

    16.1%
    Advisory: 5,280Fail: 397 (7% of the times it was found)
  2. 2
    Advisory

    Brake pads wearing thin

    9.5%
    Advisory: 2,526Fail: 295 (10% of the times it was found)
  3. 3
    Advisory

    Tyre slightly damaged, cracking or perishing

    8.1%
    Advisory: 2,627Fail: 137 (5% of the times it was found)
  4. 4
    Advisory

    Brake disc worn, pitted or scored, but not seriously weakened

    3.9%
    Advisory: 1,215Fail: 15 (1% of the times it was found)
  5. 5
    Advisory

    Tyre has a cut that does not reach the ply or cords

    3.1%
    Advisory: 459Fail: 375 (45% of the times it was found)

Based on 21,502 tests

Looking at a Hyundai Tucson Mk4 (NX4) right now?

Enter its number plate to see its full MOT history, risk rating and running costs.

Frequently asked questions

Built around 2021 (4 years old), the Hyundai Tucson Mk4 (NX4) (2021-present) fails MOTs at about the rate typical for this age. This is based on 15,014 4-year-old MOT tests from DVSA data. Each retest counts as a test.

*The build year is worked out from the date a car was first used on UK roads. For most cars this matches when it was registered, but imports may differ by a few months.

Data sourced from DVSA MOT History API. From 44,928 MOT tests on Hyundai Tucsons first registered from 2021. These figures are a guide, not a guarantee.