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Old 06-12-2020, 07:24 PM
Bmwfad Bmwfad is offline
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Join Date: Jun 2016
Posts: 20
Default Osram night breaker bulbs


I purchased Osram H3 and H4 bulbs for my 2001 s54 Z3mc headlights.

The H3 bulbs have the following cable attachment -

Are these compatible with the standard attachment on the headlight or do I need to make some changes?
They don’t appear a simple swap as expected.....
Has anyone here installed these H3 Osram night breakers?
I assume H3 and H4 are the correct size!

Thanks in advance
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Old 08-12-2020, 03:22 PM
Dave P's Avatar
Dave P Dave P is offline
Join Date: Dec 2008
Location: Cheshire
Posts: 27,755

Never used them but bulb details can be found here,


BMW bulbs tend to be of a socket type?
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Old 09-12-2020, 04:41 PM
c_w's Avatar
c_w c_w is offline
Join Date: Aug 2005
Location: North West
Posts: 8,710

H3 are usually fog light bulbs for many cars, but the Z3s use HB3 and HB4 (different bulbs I'm afraid) in the headlights.
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