Does the Lexus LS fail the MOT on noise, emissions and leaks more than it should?
The Lexus LS records 4.88 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 8.20 expected for a car of the same age mix: less than expected for its class and age (−3.32, 95% interval −3.69 to −2.95). It ranks 624 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 Lexus LS by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Lexus LS is “Lambda coefficient outside the default limits or the range specified by the manufacturer”, recorded 351 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 351 | 1.52 |
| Engine MIL illuminated indicating a malfunction | 318 | 1.38 |
| Emissions levels exceed default limits | 121 | 0.52 |
| Emissions test unable to be completed | 118 | 0.51 |
| An induction or exhaust leak that could affect emissions levels | 88 | 0.38 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 23,105 (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
If a Lexus LS gets a noise, emissions and leaks advisory, how often does it fail next time?
7.5% of Lexus LS MOTs with a noise, emissions and leaks advisory were followed by a fail in the same group at the next MOT, typically 12 months and 3,372 miles later (1,010 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,010 (advisories followed) · Method: the same vehicles followed to their next ordinary MOT · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
Other pages for this model
Lexus LS 2003 · Lexus LS 2004 · Lexus LS 2005 · Lexus LS 2006 · Lexus LS 2007 · Lexus LS 2008 · Lexus LS 2009 · Lexus LS by postcode area · Lexus LS body, chassis and structure failures · Lexus LS brakes failures · Lexus LS vehicle identification failures · Lexus LS lamps, reflectors and electrics failures · Lexus LS road wheels failures · Lexus LS seat belts and airbags failures · Lexus LS steering failures · Lexus LS suspension failures · Lexus LS tyres failures · Lexus LS visibility failures