Does the Mercedes-Benz 300 fail the MOT on seat belts and airbags more than it should?
The Mercedes-Benz 300 records 1.57 seat belts and airbags failure items per 100 initial MOT tests (2019–2024), against 3.26 expected for a car of the same age mix: less than expected for its class and age (−1.69, 95% interval −1.95 to −1.43). It ranks 580 of 627 models on seat belts and airbags (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on seat belts and airbags · check a Mercedes-Benz 300 by registration
What exactly fails on seat belts and airbags?
The most frequent DVSA defect wording in this group on the Mercedes-Benz 300 is “The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired”, recorded 177 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired | 177 | 0.97 |
| Seat belt buckle missing, damaged or not functioning as intended | 34 | 0.19 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 18,189 (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
Mercedes-Benz 300 in Norway · Mercedes-Benz 300 in the Netherlands · Mercedes-Benz 300 by postcode area · Mercedes-Benz 300 body, chassis and structure failures · Mercedes-Benz 300 brakes failures · Mercedes-Benz 300 vehicle identification failures · Mercedes-Benz 300 lamps, reflectors and electrics failures · Mercedes-Benz 300 noise, emissions and leaks failures · Mercedes-Benz 300 road wheels failures · Mercedes-Benz 300 steering failures · Mercedes-Benz 300 suspension failures · Mercedes-Benz 300 tyres failures · Mercedes-Benz 300 visibility failures