E46 316 electrical problem, stupid previous owner!

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  1. E46 316 electrical problem, stupid previous owner! 
    #1
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    savagebulldog20's Car Details
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    hi all

    i think this one may be terminal but im hoping not. basically the previous owner was a plank. he replaced the battery and put the battery clamp back in place but never bolted it down. the clamp has jumped off and hit the + terminal and the body and tried to weld itself in place.

    now all my electricals are going mental. the ASC comes on and off on its own, the car kangaroos down the road and then cuts out, the lights move up and down on their own, the blowers come on whenever they want etc. there are so many things happening i cant list them all.

    do you think the clamp arcing on the battery and body has buggered the cars brain? if not what else could it be and is it fixable. im not great on the electric side of things so all views would be highly appreciated.

    cheers all
    Nick
     
     

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    #2
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    Sorry to be the bearer of bad news but this doesn't sound good.
    First thing i would try is to see if you can get any fault codes from the system but with that kind of amp hour surging through the electrics it has more than likely fried the ECU.
     
     

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    #3
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    i thought it may have. im guessing its not fixable either?
     
     

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    Your first point of call is to get the diagnostics hitched up and see what it comes up with.You could be lucky and get away with a re program.
     
     

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    cheers, will take it to the garage up the road and see what they come up with. if i do need to replace the ecu will i need a new key set aswell?
     
     

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    If you do need a new ECU they should be able to re code the keys to match but i could be wrong on that one as I've never had to renew an ECU but just take it one step at a time and see what fault codes it comes back with.
     
     

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    Quote Originally Posted by dellboy1959 View Post
    If you do need a new ECU they should be able to re code the keys to match but i could be wrong on that one as I've never had to renew an ECU but just take it one step at a time and see what fault codes it comes back with.
    Recode EWS to ECU
     
     

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