Flickering lights

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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FarmerPug
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Flickering lights

Post by FarmerPug »

A question about the alternator. If the headlights flicker when changing gear and allowing the revs to drop is it the regulator that is at fault?
It was one of the reasons i stopped driving my 406, the battery charge fault came on.

Image

Has anyone had much luck refurbishing these?
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steve_earwig
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Re: Flickering lights

Post by steve_earwig »

My only experience of a regulator packing up was silly amounts of voltage going into the electrics (headlights got bright, wipers went crazy). I changed the regulator on that one but that was on a 1980 VW (yes, once I was lost...) and I'm not sure how rebuild-able these things are now.

Anything on the tube of U?
Unskilled meddling sin©e 2007

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Captain Jack
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Re: Flickering lights

Post by Captain Jack »

I had the same issue with my 406 - whenever revs dropped, the lights dimmed ever so slightly. But only when the car was cold - seemed OK once warmed up (presumably the longer you drive, the more charged up the battery is). Never really got to the bottom of it - even a new alternator hadn't fixed but was too little an issue to worry about.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp :twisted:)
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Doggy
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Re: Flickering lights

Post by Doggy »

I replaced the brushes and slip rings on the 807's alternator. They are far more likely to be your issue, since they're the only parts subject to wear and tear.
IIRC, it cost me about a tenner for the bits and I found a guide on Yewtoob from one of your countrymen, which was very informative.
(I'd never have figured out how to strip it down without breaking it otherwise).
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scoopeydiesel
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Re: Flickering lights

Post by scoopeydiesel »

Have a look at this post: http://406oc.co.uk/viewtopic.php?f=3&t= ... ts#p223510
Could be the regulator on the alternator.
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