[Dunt1]

Hi guys, this is my first post so be gentle. I have a 2009 E90 lci with non xenon headlights, I have recently noticed at idle the headlights flicker, well last night whilst getting out the car I noticed the drivers side footwell light is also doing the same.
The car starts and drives fine it's not battery related as the car turns over at an expected speed.
I believe it to be an earthing issue does anyone know of any common ground points?
Has anyone had a similar problem?
Tia

[TunafishE93]

You have a ground point on driver and passenger side for each headlight. So I don't think ground is your issue, but it wouldn't hurt to clean up the connections.. Does lights flicker when engines not running??

E166 right side light ground
https://www.newtis.info/tisv2/a/en/e...lim/1VnXd8t4ZD

X165 left side light ground
https://www.newtis.info/tisv2/a/en/e...lim/1VnXZionJR

[Dunt1]

Thanks for your reply,
I will check later if it's an engine running only fault or not. I was kind of hoping for a common ground as that would explain it but looks like the fault lies elsewhere.
I will check and clean those earth points later, do you know if all the vehicles lights are run off one ECU?

[TunafishE93]

They go to the footwell module plugs x14260 and x14261.
https://www.newtis.info/tisv2/a/en/e90-328i-lim/Z5taFse

Which can be found here A4011
https://www.newtis.info/tisv2/a/en/e...i-lim/AioqZS49

[Dunt1]

Update
So I have checked the earth points all ok,
Light do not flicker if the car isn't running,

I measured the battery voltage and it's at 12.12v and 14.34 running so the battery is toast!

I have no idea why only the halo and footwell lights are effected and it turns over at usual rate but it is what it is.
Appreciate your help 👍🏻

[TunafishE93]

Glad you figured it out.