In 2014, the number of MOTs increased while the reasons for follow-up visits reduced slightly. Lighting is the second most popular reason* for follow-up technical visits for cars, coming a close second to suspension issues. According to the Organisme Technique Central (UTAC-OTC) (central technical organization), nearly 9% of follow-up visits are due to lighting/signaling faults: over a third of cases involve a light set too high or a non-compliant dipped headlight beam; a quarter involve brake light faults, another quarter involve position lamps, and abnormally low adjustment or incorrect function of dipped headlights as well as a lack of number plate lighting account for 20% of follow-up visits involving lighting.
It can therefore be worthwhile for mechanics to educate their customers before the MOT. The Association Prévention Routière (road prevention association) offers this education every year during its "Lumière et Vision" (light and vision) weeks. The national campaign invites motorists, in particular, to carry out an assessment of visibility factors for their vehicle. Interestingly, the vast majority of drivers claim to check their lights at least once a year. More than half of them seek assistance from a mechanic and one in five drivers have their lights checked during their MOT.
* Excludes LPG cars