Question about 1998 BMW Z3 Roadster

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Replacement Bulbs Hi guys, trying to find replacement bulbs for a 1997 BMW z3... looking for the code I need and which type... cos looking on ebay, I saw two types, the H7 type looks pretty standard but there is also a HB3 and HB4 type which has got a plastic bit at the bottom... so a little confused. Please can someone explain? Thanks

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  • mightyreal Jan 27, 2009

    any guides as to how to remove the bulbs?

  • mightyreal Jan 30, 2009

    How do I remove and replace the bulbs? I can't seem to reach...

  • mark brown
    mark brown May 11, 2010

    Hi, these bulbs are for the headlights! if you remove a bulb from the headlight there should be the bulb type printed on the base of the bulb. If the bulb is a single element halogen bulb theyare normally a H7 type. hope this is of some help.



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I believe on this car, low beams & fog lights use an HB4 and high beam uses an HB3. but, as bmw_tech_38 mentioned above, remove the old and it should be listed in the base.

Posted on Jan 25, 2009


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1997 BMW Z3 brake lights won't come on.

The brake lamp circuits on your 1997 BMW Z3 are pretty "old-school" and straight forward. Fuse #46 (15 Amp), located in the Front Power Distribution Box at the left rear side of the engine compartment supplies battery voltage to the brake light switch via the VIOLET/GREEN wire going into the switch. When the bake pedal is depressed, the voltage leaves the brake lamp switch on the BLUE/RED wire and supplies power to all of the brake lamp bulbs.

The brake lamp circuits do branch off and go to several control modules. This is ONLY for module INPUT to tell the module that the brakes are being applied. These modules include:
> Transmission Control Module
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The ONLY way that any of these modules could be affecting the operation of your brake lamps is if there is an internal short to ground in the module that is causing the brake lamp fuse to blow.

If NONE of your brake lamps are working, the most likely causes are:
> Fuse #46 open (blown)
> Defective brake lamp switch
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Yes, the BLUE/RED wire could be broken as well, but I would check all the other things listed above first.

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1 Answer

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1 Answer

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Keep in mind there are 2 screws in the top of the trim around the cluster and 2 in the op of the cluster itself. there are 2 screws in the bottom of the trim and the cluster as well. if you do not remove the steering wheel it is quite a task removing the cluster but it is possible.

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I think you can ask this guy for the pdf file for your car, seems like he has everything
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pls try this site:

i hope i was able to help you! good luck!

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sound like you have a dishonest dealer. i dont like to say that but somtimes its true. have you pulled the tail lights and had a look at the wiring and sockets. that would be the first place to look. if you dont find anything let me know ill digg up the wiring diagram for ya.
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I have a replacement roof for my 1997 BMW Z3, could anyone give me advice how easy or hard its and could one man do it on his own?

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