Does the Mercedes-Benz Viano fail the MOT on lamps, reflectors and electrics more than it should?
The Mercedes-Benz Viano records 29.04 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 23.76 expected for a car of the same age mix: more than expected for its class and age (+5.28, 95% interval +4.70 to +5.86). It ranks 145 of 729 models on lamps, reflectors and electrics (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on lamps, reflectors and electrics · check a Mercedes-Benz Viano by registration
What exactly fails on lamps, reflectors and electrics?
The most frequent DVSA defect wording in this group on the Mercedes-Benz Viano is “A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning”, recorded 1,323 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 1,323 | 4.03 |
| The aim of a headlamp is not within limits laid down in the requirements | 1,225 | 3.73 |
| A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources | 1,046 | 3.19 |
| Lamp emitted colour, position or intensity not in accordance with the requirements | 824 | 2.51 |
| A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 802 | 2.44 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 32,805 (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 Mercedes-Benz Viano gets a lamps, reflectors and electrics advisory, how often does it fail next time?
27.9% of Mercedes-Benz Viano MOTs with a lamps, reflectors and electrics advisory were followed by a fail in the same group at the next MOT, typically 12.1 months and 6,672 miles later (1,288 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,288 (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
Mercedes-Benz Viano 2004 · Mercedes-Benz Viano 2005 · Mercedes-Benz Viano 2006 · Mercedes-Benz Viano 2007 · Mercedes-Benz Viano 2008 · Mercedes-Benz Viano 2009 · Mercedes-Benz Viano 2010 · Mercedes-Benz Viano 2011 · Mercedes-Benz Viano 2012 · Mercedes-Benz Viano 2013 · Mercedes-Benz Viano 2014 · Mercedes-Benz Viano 2015 · Mercedes-Benz Viano in Norway · Mercedes-Benz Viano in Finland · Mercedes-Benz Viano in the Netherlands · Mercedes-Benz Viano by postcode area · Mercedes-Benz Viano body, chassis and structure failures · Mercedes-Benz Viano brakes failures · Mercedes-Benz Viano vehicle identification failures · Mercedes-Benz Viano noise, emissions and leaks failures · Mercedes-Benz Viano road wheels failures · Mercedes-Benz Viano seat belts and airbags failures · Mercedes-Benz Viano steering failures · Mercedes-Benz Viano suspension failures · Mercedes-Benz Viano tyres failures · Mercedes-Benz Viano visibility failures