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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 02-08-2009, 04:27 PM
spartanic spartanic is offline
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Trunk and tail light issues

I recently removed my trunk light because it kept staying on even when the car was off and the trunk was closed thus the next day the car would be dead. Now I don't have the battery drainage issue anymore however now I have a "tail light out" on the center console. Is the trunk light on the same circuit as the tail lamp and driver's side rear lights? Brake lights work fine however.
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  #2  
Old 02-08-2009, 05:16 PM
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E36 Phantom E36 Phantom is online now
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Tail lights aren't brake lights - you checked the tail lights as well, right? Try plugging the trunk light back in, turn the car on and off, and if it clears the message then I guess it is part of the circuit, which surprises me.
IF it is part of the circuit and is causing the light to come on, you can get a resistor to wire inline. The message is based on resistance - bulbs provide resistance to the current, so when resistance drops, the computer assumes a bulb is out. Take the trunk bulb to your local Radio Shack and ask about how much resistance that would provide, and get a resistor of the same.
I'm still leaning towards either a tail light being out or you unplugging something else as well, though.
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  #3  
Old 02-10-2009, 04:28 PM
spartanic spartanic is offline
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Yes I know that the tail lights are from the brake lights. Anyway the problem has been solved. Turns out the driver side tail light (not brake lights), trunk light and the interior lights are all on the same circuit. I must have burnt out the fuse while playing around with the trunk light. After I replaced the fuse the lights worked fine again including the rear drivers side tail light. I didn't replace the the trunk light however since it still had the issue with staying lit even when the car was off. Oh well who needs a trunk light anyway.
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Old 12-14-2012, 05:59 AM
stevyg13 stevyg13 is offline
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How does one replace the trunk light on 1994 325i? does the lens just pop off?
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Old 12-14-2012, 06:58 AM
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Quote:
Originally Posted by spartanic View Post
... I didn't replace the the trunk light however since it still had the issue with staying lit even when the car was off. Oh well who needs a trunk light anyway.
If no one has already, you might check the trunk to trunk lid cable where it bends most sharply approaching the trunk lid. You can push down the outer sheath to check the inner wiring. The wiring has the unfortunate tendency of of bending too sharply, breaking and shorting. This can blow fuse F37 or take out the trunk light, license plate lights and central locking.
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Old 12-14-2012, 08:03 AM
stevyg13 stevyg13 is offline
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Thanks John...I think I want to see if I can just shut the light off...has not been blowing any fuses etc..I just found the battery being drain after a couple of days. I dont see any other lights on clock radio is off...appreciate your prompt reply..StevyG
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