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      04-26-2013, 05:25 PM   #99
DaanBMW
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Drives: 2007 328i coupe
Join Date: Jun 2011
Location: Portland, OR

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Quote:
Originally Posted by N8N View Post
There's three brake light bulbs per side - two W16Ws in the fender, which are the normal brake lights, and one H21W in the trunk lid, which only comes on under hard braking or as a rear fog if you have enabled them. The actual tail/running lights don't use bulbs, they're LEDs.
That is very useful info, thanks ! I think this should be clarified in OP.

Is there any way w/o any ohm meters and such to test out these bulbs ? For the reg brake you can in your garage but for the hard brake ones you can't...
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328i Sports Pkg, Michelin PSS on Staggered 18" OZ Ultraleggeras
. BMS Powerbox. Cyba scoops + Rev motoring intake hose + charcoal delete. Wavetrac LSD
. M3: subframe bushings + sways + control arms (fr & rr). Meyle rear toe arms. M3 diff fr bushings
. BMW Perf: v2 springs + v1 dampers. Valeo SMFW+clutch. 034 MotorSport engine mounts
. Short Shifter + Turner PU bearing + ZHP M weighted shift knob. CDV delete
Appreciate 0