2000 E38 728i - Electrical Gremlins. Is there a single cause?

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  1. 2000 E38 728i - Electrical Gremlins. Is there a single cause? 
    #1
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    fuseman's Car Details
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    I have a 2000 728i with comms pack, sat/nav etc. It goes fine but over the last couple of months has developed a lot of small electrical issues and BMW Care in Leeds say there are loads of stored fault codes in diagnostics. They have offered to have the car in and try to pin down the problem but I wondered if anyone on here can offer advice? The faults and when they first started are:-

    Airbag warning light has been on constantly - last 9 months
    Memory seats/mirrors not always in usual place - last 6 months
    Alarm goes off about a minute after setting with remote - last 6 weeks
    Parking distance sensor not working although it lights up and beeps initially - 1 month
    Hands free phone button often cancels itself within a second of it being pressed - 1 week

    I realise that these may not be connected but the most recent faults all seem to have come more or less together and I wondered if there was some central electronic unit that could be causing it?

    Any suggestions appreciated.

    Martin
     
     

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    Ronnie's Car Details
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    Have you had any electrical problems when opening the sun visor and sliding the mirror cover over also? like the radio going off?

    The reason I ask is the ignition switch is common for playing up and this is also one of the problems it causes as well as airbag light problems. Horn not working is another.
     
     

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    #3
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    fuseman's Car Details
    Model of Car:
    728i
    Year of Manufacture:
    2000
    Transmission Type:
    Automatic
    Car Body Type:
    Saloon

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    Yorkshire
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    Quote Originally Posted by Ronnie View Post
    Have you had any electrical problems when opening the sun visor and sliding the mirror cover over also? like the radio going off?

    The reason I ask is the ignition switch is common for playing up and this is also one of the problems it causes as well as airbag light problems. Horn not working is another.
    Thanks.... however my car doesn't have those features as it happens. It's going into BMW Care in Leeds tomorrow - we'll see what they come up with.
     
     

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