Vibrating headlight, ???.

[Hannahble3]

We have a 10 yr old fiat stilo & theres no electronic adjustment/motor attached as far as i know. It is not loose, but has started to vibrate like some malfunctioning pump when we switch the lights on, very strange. Does any one have any ideas what it could possibly be. Thanks.

 

[Hannahble3]

Ooops forgot to mention that it,s the front passenger side headlight thats faulty,silly me

 

[Ziggy122]

is the bulb sitting comfortable in the light unit, and the clamp applying sufficient pressure?

Ziggy

 

[Most Easterly Pandas]

There will be an electronic motor internally. Question is if it's manually controlled, or if you've HIDs and they're automatically controlled.

Have you the adjuster buttons to the side of the steering wheel where the menu button is