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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 07-05-2010, 02:06 PM
maherr maherr is offline
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Help: No Battery power,trunk closed

I disconnected my battery to replace the steering wheel, and accidently closed the trunk. This may sound silly, but how do I open the trunk with no power?

Thanks in advance for your help.
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  #2  
Old 07-05-2010, 02:18 PM
tagus1997 tagus1997 is offline
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Quote:
Originally Posted by maherr View Post
I disconnected my battery to replace the steering wheel, and accidently closed the trunk. This may sound silly, but how do I open the trunk with no power?

Thanks in advance for your help.
Use the key. Turn to the left (horizontal position).
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  #3  
Old 07-05-2010, 03:19 PM
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mnepitjr mnepitjr is offline
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+1 use key turn hard to left. Unless key is inside the trunk.
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  #4  
Old 07-05-2010, 03:44 PM
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QSilver7 QSilver7 is offline
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OMG! Key~key lock cylinder~insert key into lock cylinder~turn~should open.

Don't take this personal or the wrong way...you're not the first to ask this...and won't be the last. But it is unbelievably funny that the further we move away from the time when keyless entry was "rare" and has now become "common"...its as if we've consciously forgot that a key can physically unlock things when inserted into the lock cylinder.

And ditto...if there's more to this story...like you've LOCKED your ONLY key inside the trunk...then you have greater issues than what has been suggested so far. You may be screwed and it will cost you if you've closed-up your only key inside the trunk.

-

-

Or...you could hook up a battery charger (or another car using jumper cables) to the jump start locations under the hood...then you can use the keyless remote fob to unlock the car like you normally do.



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Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
(SOLD)
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

http://imageshack.com/scaled/grid240/822/e38e532ndsigpic.jpg

Last edited by QSilver7; 07-05-2010 at 03:50 PM.
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  #5  
Old 07-05-2010, 05:15 PM
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bluebee bluebee is offline
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Quote:
Originally Posted by QSilver7 View Post
its as if we've consciously forgot that a key can physically unlock things when inserted into the lock cylinder.
I suspect you could also jump start the car from the hood connection points and then you'd have power again.

BTW, I too am amazed at how many times this question comes up. With a key in our hand, and a trunk lock cylinder staring us in the face, we still blindly ask "how do I open my trunk?".

Interestingly, since I still haven't figured out how to properly repair my trunk loom, (I freeze when I'm clueless) the ONLY way I can get my trunk open is via a mechanical turn of the key.

I wonder if I didn't know already whether I would have been one of those asking how to open the trunk (as the key fob won't open the trunk, the button on the console won't open the trunk, and the trunk button on the trunk won't open the trunk).

But, the key still works. So low tech.

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  #6  
Old 07-05-2010, 07:15 PM
maherr maherr is offline
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Thanks everyone for your help. I was tunring the key to the left but not hard enough thinking that the first stop was the end.

Thanks again!
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  #7  
Old 06-25-2015, 12:32 PM
kjartan kjartan is offline
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Mein Auto: 2002 E39 520iA
Happened to me today.

I didn't have enough strength in my hand/finger to only use the key. I actually ended up breaking the plastic on the key!
I had to use a pair of pliers and hold the inner most edge of the key and use a alot of force to turn the key to the manual position and unlock the trunk.
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  #8  
Old 06-25-2015, 03:16 PM
edjack edjack is offline
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Hose that key slot down with TriFlo.
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  #9  
Old 01-26-2016, 08:41 PM
Dukkhuli Dukkhuli is offline
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I have same problem at this moment it is not true that the key can open the trunk im trying for 10 min and wont open ill jump start tomorrow morning i gues that will hel sins the hud can be opened
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  #10  
Old 01-26-2016, 09:01 PM
Brandon002 Brandon002 is offline
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The key will open the trunk. Its designed to. If yours won't something is stuck.
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  #11  
Old 01-26-2016, 09:04 PM
Dukkhuli Dukkhuli is offline
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It actualy did open it just nedet bit more force i was scared im gona break the key but is will klick if hou pres little more ***55357;***56397;***55356;***57339;
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  #12  
Old 01-26-2016, 09:13 PM
u.nanimous u.nanimous is offline
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Quote:
Originally Posted by Dukkhuli View Post
I have same problem at this moment it is not true that the key can open the trunk im trying for 10 min and wont open ill jump start tomorrow morning i gues that will hel sins the hud can be opened
This is what happens when you always use the remote. I manually use the key in all the locks at least a few times a year to make sure they all work, especially when the temperature starts to drop before winter.
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After...(this may take a few years, it's my DD and I have bigger projects)

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  #13  
Old 01-27-2016, 08:56 AM
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QSilver7 QSilver7 is offline
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Also...remember to lubricate your driver's door & trunk lock cylinder if you always use remote lock/unlock NEVER really insert the key physically into the lock cylinder.

Edjack mentioned using Tri-Flow in his reply from back in June/2015...I agree. But other lock lubricants can be used as well...especially something with graphite in it. I like Tri-Flow because it contains TEFLON...which helps smooth operations when two surfaces bind/move against each other.

Tri-Flow can usually be found at bicycle shops (many bike owners use it for their chains)...but you can also go to their website http://www.triflowlubricants.com/index to find local vendors.

__________________
Q {BMW CCA Member #191509}
2006 E53 X5 4.4i (Sterling Gray) 12/05 mfg date <<~>> 97 740iL (Arctic Silver) 3/97 mfg date
(SOLD)
99 540iT (Orient Blue) <<~>> 95 525IT (Alpine White)
91 735iL (Schwarz Black) <<~>> 85 325e (Bronzit)

http://imageshack.com/scaled/grid240/822/e38e532ndsigpic.jpg
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