2003 545i Battery Charging Fault

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  1. 2003 545i Battery Charging Fault 
    #1
    BMW Fanatic
    Car Details
    st_files's Car Details
    Model of Car:
    545i
    Year of Manufacture:
    2003
    Transmission Type:
    Auto
    Car Body Type:
    Saloon

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    Jan 2009
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    I bought a 545i today. Excellent car, fbmwsh, drives superbly, 63k miles...but...

    after about 15-20 miles I got an ABS, braking and transmission failure with all lights flashing - and a drive moderately warning. The car went onto safe mode and I nursed back to the dealer.

    When He tested it all he got was a battery charging fault - he said that a low battery can cause the systems to diagnose transmission/abs problems and that a new battery should remedy.

    To be fair when the car is restarted all the warnings are gone and the car drives perfectly, so there is clearly no catastrophic problem with the transmission/brakes/gearbox.

    To all you experienced BMW owners out there - does what the dealer said sound right? Can a low battery cause the iDrive system to diagnose major problems that dont exist?

    Many thanks in advance, I apologise if this has been covered elsewhere, but I am somewhat worried as you can understand...!
     
     

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    #2
    BMW Maestro
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    craigledden's Car Details
    Model of Car:
    525i se (E39)
    Year of Manufacture:
    2002
    Transmission Type:
    manual
    Car Body Type:
    saloon
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    theres only one way to find out m8 get a new battery in it
    E39 525I
     
     

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    #3
    BMW Fanatic
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    st_files's Car Details
    Model of Car:
    545i
    Year of Manufacture:
    2003
    Transmission Type:
    Auto
    Car Body Type:
    Saloon

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    Jan 2009
    Location
    london
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    its still under warranty so I've left it with him, presumably the mechanics will test the battery on monday...
     
     

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    #4
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    Ronnie's Car Details
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    Never too old, never too new
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    Always manual
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    Usually 5 doors
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    The alternator should run ALL the car electrics unless you have alot of items switched on, so I would think the alternator charging rate can't be great. Keep us updated on the problem and congratulations on your new car

    Also could you remember to add the vehicle details in the thread title next time as per forum rules please, they have been done for you this time. It makes it far easier for people looking up help for their own problems or conversions.
     
     

  7. The Following User Says Thank You to Ronnie For This Useful Post:

    Mighty_5series (17-01-2009)

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