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Mean Green



Member Since: 15 Sep 2011
Location: South Ayrshire
Posts: 280
Scotland 
Glowing battery light
The battery light on my 200tdi is occasionaly glowing dimly. I would normally expect this to signify a problem with the alternator and it would glow brighter as more load is applied. However in this case there is usually a glow at idle with no load, switiching on side lights dims the glow and dipped headlight dims it to the point that it is hardly noticeable.

Could this still be an alt problem?
Post #299743 17th Jan 2014 8:28pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897
England 2005 Defender 90 Td5 XS CSW Bonatti Grey
All 101s suffered from that.
If it's not causing any charging problems forget it. 
Post #299747 17th Jan 2014 8:35pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610
United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Only real way to tell is stick a voltmeter on your battery and compare readings static/engine running. Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #299762 17th Jan 2014 9:22pm
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lambert.the.farmer



Member Since: 11 Apr 2012
Location: harrogate
Posts: 2006
England 1998 Defender 90 300 Tdi PU Rutland Red
I would suspect that it is dieing or at least the voltage regulator is on its way out. Also clean the contacts for the wires on the back of the alt. Rhubarb and custard let fly with their secret weapon.
Post #300126 18th Jan 2014 10:32pm
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Interlet



Member Since: 10 Oct 2011
Location: Norwich
Posts: 461
United Kingdom 1998 Defender 110 300 Tdi HT Alpine White
I had this on my 300, replaced alternator and it fixed this 1998 110 300Tdi White Hard Top
Post #300127 18th Jan 2014 10:42pm
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TJN



Member Since: 03 Sep 2012
Location: Winchester
Posts: 6
United Kingdom 
Sounds like youve got muck in the alternator. Clean all the connectors and air blast the alternator if you cant be bothered to remove it! worth checking your battery terminals too.
Post #301719 24th Jan 2014 10:52am
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Diablo



Member Since: 26 Oct 2011
Location: Basingstoke
Posts: 335
1984 Defender 90 200 Tdi SW Keswick Green
Doesn't take long to remove the alternator.

Once out there are 2 or 3 nuts to remove and the thing comes apart. Then it can be given a good clean, and you can also inspect the brushes - they may be worn completely, with nothing left.

A new brush and diode pack can be obtained rather cheaply. Much more likely that this is the problem, rather than spending a load of money on a new alternator.
Post #301765 24th Jan 2014 1:25pm
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