Battery warning

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

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rwb
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Battery warning

Post by rwb »

Can't remember exactly what the message said, but the battery light came on.

There's an intermittent fault stored in the BSI, but that's all.

Parameter measurement suggests everything is good.

Top: engine off. Bottom: engine running.
Image

Started up and drove 10 miles with no further tantrum, so I'll let it develop :roll:

Otherwise it's had a good day. Trip to Southampton this morning got 61mpg on the computer, and the air con is working magnificently -- radiator fan and all :D

If this rings any bells then it would be good to know what happened.

Current: 407 2.2 HDi 170 & C6 2.7 HDi.
Former: 406 1.9 TD; 406 HDi 90; 407 2.2 160; 307cc 180; 508 HDi 140.
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grasmere59
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Re: Battery warning

Post by grasmere59 »

I had "battery voltage low" on the MFD and the battery light on a while back and it was the alternator on the way out,changed the alternator and all is good again.
2011 "11" Mondeo TXS est 200ps in Grey
2003 "53" 110 hdi Executive Estate in Diablo Red
2001 "51" BMW 530i sport in Black
2012 "62" Yamaha XT1200
1974 "M" Honda CB500/4
1994 "M" Kawasaki Zephyr 1100
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Doggy
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Re: Battery warning

Post by Doggy »

It's also worth making sure your quick-release battery terminal(S) are good and tight.

...and maybe check the main earth connections too?
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
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grasmere59
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Re: Battery warning

Post by grasmere59 »

Also check the alternator clutch pulley if yours has one as they can loose drive.
2011 "11" Mondeo TXS est 200ps in Grey
2003 "53" 110 hdi Executive Estate in Diablo Red
2001 "51" BMW 530i sport in Black
2012 "62" Yamaha XT1200
1974 "M" Honda CB500/4
1994 "M" Kawasaki Zephyr 1100
1998 "S" Honda XRV 750
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