Question about 1999 BMW Z3

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My z3 starting problem

My z3 wouldn't start and made a clicking noise like it had a flat battery. when push starting the car it fired up straight away. could this be a battery problem or starter sticking or something else?

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  • twmudd May 12, 2009

    Me too! - 1999 BMW z3 2.8L.

    The problem is intermittent (approx 1 times in 4 when I try to start the car). You turn the key to the start positions and you hear the starter motor solenoid go CLICK CLICK CLICK.
    Having owned many old cars, this problem can be symptomatic of a poor battery terminal connection - one that simply cant handle the high amps demand of a starter. BUT.... I have ruled out the following:

    1 - Bad battery
    2 - Bad battery terminals
    3 - Bad battery terminal clamps

    It *could* be a loose fitting connection on the starter motor or the starter solenoid itself but the thing is nearly impossible to see without stripping the top off the engine. In addition, a loose connection should produce an electrical 'spark' sound (similar to the sound of welding) when it fails. I've listened to the CLICK CLICK CLICK but I can hear any sparking - only the solenoid.

    Engine immobiliser system perhaps ?


    Any help appreciated.

    Cheers

    Tom

    twmudd@hotmail.com


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  • 126 Answers

I would say its a dead (flat) battery. if its more than 4 or 5 years old, it might be time to replace it.

try jumping it with another vehicle. if it jump starts, then replace the battery.

if its a newer battery (less than 4 years old), then something is draining the battery or the alternator is not recharging it.

Posted on Mar 12, 2009

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