Mot fail on headlight beam height, self levelling sensor?
Discussion
Just failed an mot on my mk2 megane, one headlight is too high. Seemingly a tilt sensor for the headlight self levelling system is missing? A what? Anyway, i'm thinking is this really an mot fail that this is missing, surely headlight can still be adjusted manually?
This tilt sensor sits on the wishbone seemingly. Thanks.
This tilt sensor sits on the wishbone seemingly. Thanks.
Dogwatch said:
Who nicked the sensor? Is this a case for Clouseau?
Or maybe just a previous owner cutting costs
It's been missing since i bought it, i always wondered what the multi plug connector hanging down was? Now i know,!, anyway, official fail is 'Headlamp levelling device inoperative nearside front'.Or maybe just a previous owner cutting costs
Quick glance through mot site says this regarding self levelling systems, "Where such systems are fitted, they must work however, it is accepted that it may not be possible to readily determine the functioning of self levelling systems. In such cases, the benefit of the doubt must be given."
I feel as long as lighting system works, as it does perfectly, i don't know why the one headlight that is slightly too high can't be adjusted manually with the hex adjuster on top of the headlight motor?? Then get on with my life,?
I questioned mot guy, why can't that light just be manually adjusted to get through mot,? He just said that missing levelling sensor 'has' to be there!
Edited by robbocop33 on Thursday 4th July 18:51
robbocop33 said:
Dogwatch said:
Who nicked the sensor? Is this a case for Clouseau?
Or maybe just a previous owner cutting costs
It's been missing since i bought it, i always wondered what the multi plug connector hanging down was? Now i know,!, anyway, official fail is 'Headlamp levelling device inoperative nearside front'.Or maybe just a previous owner cutting costs
Quick glance through mot site says this regarding self levelling systems, "Where such systems are fitted, they must work however, it is accepted that it may not be possible to readily determine the functioning of self levelling systems. In such cases, the benefit of the doubt must be given."
I feel as long as lighting system works, as it does perfectly, i don't know why the one headlight that is slightly too high can't be adjusted manually with the hex adjuster on top of the headlight motor?? Then get on with my life,?
I questioned mot guy, why can't that light just be manually adjusted to get through mot,? He just said that missing levelling sensor 'has' to be there!
You could always adjust it correctly & then take it somewhere else who may not see it missing if you hide it, but at the end of the day if you read what you put above yourself, there is no doubt it is a fail unfortunately.
It is fitted but not working & as a major part of it isn't there then the "benefit of doubt" clause to allow a pass clearly can't be invoked.
Just had the same on my Kia. Outrageously frustrating not gonna lie. Been advised to manually adjust the headlight to make sure the beam is in alignment, then tape the switch and go get it tested.
“In theory they cannot test something which is not there, if the headlights are in alignment then what can they do, they cannot touch or change anything, I.e take a switch cover off”
I have no idea how accurate what this guy has said is right, but that’s what I’m gonna do, see how it goes!
“In theory they cannot test something which is not there, if the headlights are in alignment then what can they do, they cannot touch or change anything, I.e take a switch cover off”
I have no idea how accurate what this guy has said is right, but that’s what I’m gonna do, see how it goes!
Sampr96 said:
Just had the same on my Kia. Outrageously frustrating not gonna lie. Been advised to manually adjust the headlight to make sure the beam is in alignment, then tape the switch and go get it tested.
“In theory they cannot test something which is not there, if the headlights are in alignment then what can they do, they cannot touch or change anything, I.e take a switch cover off”
Few points to not.“In theory they cannot test something which is not there, if the headlights are in alignment then what can they do, they cannot touch or change anything, I.e take a switch cover off”
You say "tape the switch" - I assume you are referring to the "aim adjustment" in the cabin, that isn't the same thing, the failure above is on an automatic system that is load related.
You say they "cannot test something which is not there" - But unfortunately if it should be there & obviously is not there it is still a failure if the tester sees that. Otherwise by your logic if you have a crack on your windscreen but remove it for the test it would pass.
Gassing Station | Home Mechanics | Top of Page | What's New | My Stuff