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Author Topic: battery light has come on while driving?  (Read 3452 times)

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ali

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battery light has come on while driving?
« on: 05 September 2009, 21:20:23 »
Yesterday my battery light came on while driving. It keeps fading on and off, nothing else seems wrong :-? The battery is only 3 months old and I put it on when having hot start problems. Still a pain to start when hot but was going to keep going until something else went wrong. Got stuck in the garage again tonight, they must think I fancy the guy behind the desk ;) as I spend so much time there ;D ;D ;D ;D
Noticed the battery light stays very dim when I first turn keys on and get brighter when driving. Any ideas where I should start checking tomorrow :-/
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Ziad

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Re: battery light has come on while driving?
« Reply #1 on: 05 September 2009, 22:11:04 »
Looks like you might have a problem with your alternator  :-/
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Stevie-blunder

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Re: battery light has come on while driving?
« Reply #2 on: 05 September 2009, 22:30:50 »
Also check out on fleabay "bmw diesel hot start fix" approx £29.95 + £2.95 p&p, bought one for my tractor, BRILL. It fools engine so glow plugs come on, I then wait 5 secs after glow plugs, turn key and hey-presto. Little black box with 4 wires, if I can do it, anyone can.  :y
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ali

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Re: battery light has come on while driving?
« Reply #3 on: 06 September 2009, 11:05:08 »
Ive got the hot start box, but wasnt sure where to earth it :-? so its sitting in a kitchen drawer :D I will get it out today and have another look, will also paper clip test to see whats going on there ; :o Poor Syd has been neglected over our mad summer season  ;D ;D ;D
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goonv6

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Re: battery light has come on while driving?
« Reply #4 on: 06 September 2009, 11:10:04 »
I agree with ZIAD here. Put a multimeter across the terminals whist running. You should see something from around 13.9 to 14.4v. Reckon you should also get the battery rechecked. New doesn't always mean new when it comes to batteries.
« Last Edit: 06 September 2009, 11:11:30 by goonv6 »
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Ghost

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Re: battery light has come on while driving?
« Reply #5 on: 06 September 2009, 11:24:14 »
Check the cabels on the alt. that they are clean and not broken.
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ali

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Re: battery light has come on while driving?
« Reply #6 on: 06 September 2009, 16:27:41 »
Battery is flat when I went out his morning so I have put it on charge, I guess that means the alternator :( will search on  here to see how I check it and if its a job I can do :-? :-? :-? I also think its time I got a meter if Im going to keep playing in the engine ;D ;D ;D
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RobG

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Re: battery light has come on while driving?
« Reply #7 on: 06 September 2009, 16:31:51 »
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ali

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Re: battery light has come on while driving?
« Reply #8 on: 06 September 2009, 17:12:52 »
ok off to maplins in the moning for multi meter, just hope no one nicks Syd why I run in as I cant risk turning the engine off ;D ;D ;D nothing new on the paper clip test just the beloved 64 >:( At least Ive found out where the alternator is now, just in case Ive got to whip it out :D :D :D
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ali

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Re: battery light has come on while driving?
« Reply #9 on: 07 September 2009, 21:27:49 »
got a meter and looks like it is the alternator so will have a go and see if I can change it :o thanks for the help guys :y
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TheBoy

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Re: battery light has come on while driving?
« Reply #10 on: 07 September 2009, 21:57:48 »
Do you have aircon? If so, the pipes may get in the way, making it a bugger.

TIS suggests, with inlet off, you can lift it out.  Poppycock!!
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ali

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Re: battery light has come on while driving?
« Reply #11 on: 07 September 2009, 22:22:22 »
Yes I have aircon, I was wondering if this was out of my league  :-? too many other things wrong with Syd to warrant paying lots of money to fix, so maybe time to scrap both cars and get one that is trouble free. Ive kept them both running through the summer but as fast as I fix one thing something else goes wrong :( :( :( :( :(  if the pipes get in the way is it an access problem or is it that it just will not come out?
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TheBoy

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Re: battery light has come on while driving?
« Reply #12 on: 07 September 2009, 22:28:02 »
Its actually an easy job to do, but really fiddly to find an easy way out. Seem to remember doing someone's TD (Omegatoy?) that was really easy - mine was a pig.
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ali

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Re: battery light has come on while driving?
« Reply #13 on: 07 September 2009, 22:28:39 »
forgot to mention the aircon doesnt work, so could I disconect pipes :-?
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TheBoy

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Re: battery light has come on while driving?
« Reply #14 on: 07 September 2009, 22:32:04 »
Quote
forgot to mention the aircon doesnt work, so could I disconect pipes :-?
that helps!!
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