1998 318tds e36 Battery Draining

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  1. 1998 318tds e36 Battery Draining 
    #1
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    Doogs's Car Details
    Model of Car:
    318tde
    Year of Manufacture:
    1998
    Transmission Type:
    Manual
    Car Body Type:
    Coupe

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    1998, 318 TDE

    Just over a month ago got into the car, keys in ignition - nothing, not even any lights on the dash. Jump started the car and it was running fine until Thursday past when same thing happened again. Jump started it again, thought it was the battery so replaced that. Within 3 1/2 hours battery dead again. Found a couple of the wires that lead from car into the boot broken so repaired these. Also one of the fuses for central locking gone so replaced that as well. Left the car - battery drained again within a few hours. No interior lights left on, boot light ok (jumped in to check) - anyone got any other suggestions as to what it may be before I part with my money at the garage ? Many thanks
     
     

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    #2
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    sanj001's Car Details
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    323i
    Year of Manufacture:
    1999
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    I would check the drain on the battery mate, most common reason for excessive drain on the cars that i have worked on is usually an aftermarket alarm, mobile phone kit etc...

    To check the drain, you will need an ohmeter ideally with a miliamp measurement, loosen the earth terminal on the battery place one probe of the meter on the battery clamp and one probe on the battery pole, lift the clamp off slowly making sure you do not touch the clamp with the probe on the pole, you should then get a reading of roughly around 0.03 miliamps, anything higher than 0.05 is excessive drain in my opinion.

    If you are not able to carry out this check any good local garage will be able to.

    Hope this makes sense!
     
     

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    Dr of BMW gildersol's Avatar
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    #4
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    Car Details
    Doogs's Car Details
    Model of Car:
    318tde
    Year of Manufacture:
    1998
    Transmission Type:
    Manual
    Car Body Type:
    Coupe

    Join Date
    May 2009
    Location
    Aberdeen
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    Cheers, apprecciate that. Will try that tomorrow and come back if that fails !!!
     
     

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