Ask Honest John

Most recently answered headlights questions
Is it illegal to only have one headlight? There are so many cars with only one headlight and if its the drivers side along a dark lane they can be mistaken for a motorbike. The police should get active...
This winter, with dark rush hour mornings and evenings, I am appalled at the number of drivers who have seriously faulty lights. I see them in the dark mornings so presumeably they also return home in...
We have an elderly Focus that has suffered the common problem of "clouding" of the surface of the polycarbonate headlamp lenses. This can, I am told, lead to MOT failure. Whilst there are (relatively expensive)...
Hi there. I noticed the dipped beam headlamp bulbs fitted to our Hyundai Coupe Siii 2 litre were getting a bit dim. Internet forums suggested that bulbs dim over time, and as these were original equipment...
I've just bought a 2010 E61 with adaptive xenons. What are the regulations for carrying spare bulbs when travelling in France? Reason I ask is that in the past, I've always carried a spare set (halogens)...
Even my son who is 14 and shoots for his army cadets (and so has good young eyesight) says he doesn't like the glare of modern Xenon headlights. Nor do I. I used to like driving at night but now it seems...
I was wondering whether there is any legislation to force manufacturers to build cars that allow the 'ordinary' motorist to change a light bulb. I have just bought a 2007 Vauxhall Vectra and when I returned...
In your article about the MOT rules from 1/1/12, you advise that afterrmarket HID conversions will fail without washers and self-levelling. You appear to be wrong on this. The official MOT testers manual...
My Vauxhall Omega Elite is due an MOT but on pre check they say cold cathode dip is not defined. What can I do?
I am concerned that BMW, Audi, Mercedes and Ford appear to compete with each other to see who has the biggest and brightest daylight running lights. I find this very distracting at the moment when there...