e46 318 battery warning light fault

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  1. e46 318 battery warning light fault 
    #1
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    battery warning light has stayed on after alternater changed twice battery tests fine, charging at over 14volts, belt is in good nick and fitted correctly, any one got any ideas
     
     

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    what voltage are you getting withhout the engine running and how old is the battery might be worth have a battery drop test on it just because its charging does not necessarly mean it will hold the charge it is possible that thevoltage regulator in the alternator is faulty too much charge is not good
    expect to see between 14-14.5v with everything on with the car running and about 13-13.5 with no load on the battery.
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    battery has been fully tested working perfect alternater performing like it should had a new bosch one thought it was faulty had another new replacement but still the light stays on is there a relay somewhere that could be burnt out if so where?
     
     

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    have i posted something wrong on this one if so what have i done so i can try to prevent it happening again
     
     

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    have you tried clearing the light with a diagnostic tool?
     
     

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    A bit of a thread revival but i have the same issue [same size and car ], could it be that the replacement
    alternator is 12v and not 14v like the unit it's replacing ?
     
     

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