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Old 02-06-2017, 08:44 AM   #3
Gelbster
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Join Date: May 2014
Location: S.California
Posts: 2,029
"The clicking comes from the front of the trunk"
You mean FRunk " ??
If so it seems the solenoid that activates the latch release is freaking out.Why?
Did you hit something, fiddle with it,has it become loose,is there some debris there,loose connection?
Don't start playing with it until you read the how to's on opening the Frunk w/o the release button operating.
Make sure you can easily reach the emergency release & follow the mods to re-route it.
When you have the manual release figured out, you can temporarily disconnect the wiring to the latch until you solve the problem. That way you won't get stranded with a discharged battery &/or an un-openable Frunk ! And you can replace C3.
If you think a flat battery is a problem, try it with a locked Frunk also !
Tangential comment - you can slow charge the battery through the cigarette lighter socket with a Cteck Mus 4.3 or similar - Search here and use Bentley for details.Good Luck and let us know....
Same general idea if it is the rear trunk

Quote:
Originally Posted by opus104132 View Post
I posted this question yesterday but it never showed up. Trying again:

I've searched extensively and can't find anything on this. My 2003 S is draining the battery quickly when off with key out and locked or unlocked (<12V in a day or two). I hooked up my Amp meter and found that the rapid drain stops when I remove fuse C3. I think the cause of the drain may be related to a clicking sound coming from directly in front of the trunk. The noise happens exactly once every 60 seconds and stops when I remove the C3 fuse. Can anyone identify the noise? Below is a video of it. The sound is at about 15 seconds.

https://youtu.be/rwl3OCCaBoE

I've replaced the battery and verified that charging system is OK. If someone can identify the sound that will at least point me in the right direction.

Thanks for any ideas!
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