Dimming Lights

[Donk]

I noticed last night when driving along that when I touch any of the window buttons the headlamps dim slightly, and it was not just the 4 switches on the drivers door that made it happen, but any of them.

Has anyone else had this, is it deemed to be normal or is this something I should get checked out?

[JOHNNY-BOY]

Do the lights dim when the window is closed & you pull the switch to close a window, i.e. to check it is fully closed?

[Donk]

Yes, thats what I was doing, it was too cold outside to lower the window!

Should I not do that?

[JOHNNY-BOY]

My lights dim when I do that too, this has also happened on other IS's I have been in. I presume it is the current drain trying to lift a window when it is not possible to lift any further.

[ricky_is200]

Yep I get the same as well, I've noticed it when checking all the windows were fully up.

[PaulFromSwindon]

Hi Guys,

It's just the fact that the leccy window motors take such a pull from the Battery that it temporarily lowers the voltage output getting to the other stuff. Usually worse just as the window motor starts cos it takes a surge of juice to get started.

Nothing to worry about, happens with virtually any car, just more noticable with some. Usually only noticable with windows cos they use so much 'lectric, the surge pulls quite a bit of juice from the Battery.

Have a good one

Paul