Haunted Headlights, Help! (51 plate 172)

[marco_polo]

Hi, I've got a weird one for y'all, my headlight units keep twitching up and down (very slightly) on their own. Is this normal?!

The car is stationary, but the servo motors behind the headlights can be heard adjusting the height of the beams constantly!

Has anyone else experienced this? Dying sensor? Or could the sensor simply be in-between two height settings, and it can't make up it's mind?!

Thanks in advance,

Mark

 

[clio_luke]

mine did a simelar thing right befor the bulb went.
hope this isn't the case because the bulbs are very expensive

 

[marco_polo]

It's even doing it with the lights off! I don't like it....

 

[Beef-Mc]

I'm sure it's just the lights auto adjusting.

 

[clio_luke]

oh, yeah mine didn't do that when they were off.
it does sound like they are auto adjusting. strange

 

[marco_polo]

Why would they be auto adjusting, when the car's stationary? Has anyone else experienced / fixed this? Should I just ignore it?!

 

[bmh.01]

Could be the auto adjuster sensor on the back dying and telling the UCH that the rear ride height is changing so it adjusts the lights.

Then again could be a few things really tbh.

 

[marco_polo]

UCH? Sorry, I'm new!

 

[marco_polo]

'UCH' anyone?

 

[bmh.01]

The UCH is the computer that controls all the cars auxillary systems like the lights, climate control, wipers, central locking etc. But you don't need to worry about that, its only an idea and it'd be the sensor on the rear axle that'd be the problem if any.

 

[lemonnobby]

make sure the arm is connected on the rear axle and the front n/s wishbone

 

[bmh.01]

Didn't think there was anything on the front wishbone? I haven't heard of/seen anything anyway, the height of the front shouldn't change its only the rear depending on weight in the back.