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      09-06-2020, 08:01 AM   #2
tristancliffe
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Drives: 2012 F31 320d Sport
Join Date: Sep 2015
Location: Norwich, UK

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New bulbs bought and fitted. No change.

If I take the bulb out I can measure 12.3v across the terminals. As soon as I put the bulb in the voltage drops to zero, presumably breaking down under load. Does that suggest the earth?

Resistance to earth is about 0.5 ohms, which is pretty good.
The bulb measures 2.2 ohms.

Struggling now!
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