dipping headlights, strange!

[lozz]

anyone else had this, > (406 d9 hdi 99 )
when the cars idling at traffic lights etc, the headlights go dim then all of a sudden go bright again,
also the heater blower goes slower,

couid this be the alternator failing or battery going abit down,

car as always been a good starter,
and its always done this light dimming thing
any ideas, ?

thanks,

[steve_earwig]

Mine go dim a few times when the engine's cold. The D8 used to wave its headlamps up and down

[teamster1975]

Mine does this, despite changing the alternator a couple of years ago (shot bearings).
When the aircon kicks in and out it dims everything because it's drawing more current; it seems the alternator is only giving out full charge at 1300-1400rpm.

[lozz]

cheers,

so theres nowt wrong with my car then, an its just a pug thing,

cool,

thanks,

[FarmerPug]

just a pug thing, i notice it on mine when i put the rear demist on very little difference youd need to be looking to see it.

[lozz]

just a pug thing, i notice it on mine when i put the rear demist on very little difference youd need to be looking to see it.

inotice it more when the heater blower is on as you can hear the fan slow down when the lights do the diming thing,
thus why ifind it strange its the 1st car ive had that does this,