Does the BMW i3 fail the MOT on noise, emissions and leaks more than it should?

The BMW i3 records 0.24 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 0.99 expected for a car of the same age mix: less than expected for its class and age (−0.75, 95% interval −0.82 to −0.69). It ranks 408 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 BMW i3 by registration

What exactly fails on noise, emissions and leaks?

The most frequent DVSA defect wording in this group on the BMW i3 is “Engine MIL illuminated indicating a malfunction”, recorded 196 times in 2019–2024.

BMW i3: most frequent noise, emissions and leaks defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Engine MIL illuminated indicating a malfunction	196	0.22

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 87,422 (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

Does the BMW i3 fail the MOT on noise, emissions and leaks more than it should?

What exactly fails on noise, emissions and leaks?

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