Does the Hyundai Kona fail the MOT on noise, emissions and leaks more than it should?

The Hyundai Kona records 0.45 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 0.61 expected for a car of the same age mix: about as expected for its class and age (the difference is within its interval or under 0.5 items per 100 tests) (−0.16, 95% interval −0.21 to −0.11). It ranks 295 of 678 models on noise, emissions and leaks (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on noise, emissions and leaks · check a Hyundai Kona by registration

What exactly fails on noise, emissions and leaks?

The most frequent DVSA defect wording in this group on the Hyundai Kona is “Lambda coefficient outside the default limits or the range specified by the manufacturer”, recorded 158 times in 2019–2024.

Hyundai Kona: most frequent noise, emissions and leaks defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Lambda coefficient outside the default limits or the range specified by the manufacturer	158	0.16
Engine MIL illuminated indicating a malfunction	155	0.15
An induction or exhaust leak that could affect emissions levels	57	0.06
Emissions test unable to be completed	50	0.05

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 100,035 (initial tests) · Method: failure items (major and minor) grouped by DVSA's defect tree; wordings with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV

Other pages for this model

Does the Hyundai Kona fail the MOT on noise, emissions and leaks more than it should?

What exactly fails on noise, emissions and leaks?

Related pages

Other pages for this model