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Old 01-09-2013, 08:48 AM   #5
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Join Date: Sep 2011
Location: TEXAS - Circuit of the Americas doing laps with my M5 and coming in for a pit stop.
Posts: 3,427
My Ride: 03 330iT SportWagon
First check your voltage on the connector. You should verify 12v on the center pin, then verify continuity to ground on outside.

If it verifies correct, change it with the right one to see if it follows the lens itself.

I had a left turn signal bulb keep going out. It appears that it wasnot making a good connection at the center pin because it arced to the point of wearing the bulb point down so no contact was made. The bulb I removed was made in China.

Last edited by BMWCaptain; 01-09-2013 at 09:00 AM.
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