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Dead battery hood Trunk release My advise! Be Prepared.

If you have a Porsche Boxster and your battery go's dead, or you close your trunk while working on car when the battery is dis-connected (like I did) Here is some basic prep advise.

1-You can carry a small 12 volt battery jumper inside your car behind passenger seat, with a 2 foot long jumper wire. Small speaker wire..

You can open your front hood/trunk while putting 12 volts of power on the C3 fuse located in your fuse box 3rd row down 3rd fuse.

2-I also carry my Porsche tool bag inside the car behind my passenger seat. It is normally behind your spare tire in the front trunk. But if you can not get your trunk open a tow truck driver can not pull your Boxster up on a flatbed truck because he needs your tow hooks that are inside your tool bag...
Liability issues..Some Towing companies are affrade of Porsches.

You could actually get into a problem where you can not start your car, or even tow your car. It can make things more easy if you keep your tow hooks out of your trunk, and a battery jumper, and small fuse jumper wire inside your car.

There is also an emergency trunk release outside the car under the left fender well. It is rumored that some early boxsers 97,98,99 do not have it.,,some..

You could also pull (very hard) on the actual trunk release cable from inside the car behind the fuse box, but I would not recommend that one. You could break something.

Putting power to the C3 fuse is best, very easy, takes 1 minute!.

My car was locked, alarm set, battery disconnected, outside door key chuck broken (like that for years I never use it), I only used remote, While I was working on car. I left front trunk loose, but then someone decided to do me a favor and shut it all the way.LOL So I slim jim, get in, jump C3, no problem.

Hope this helps people.

Kevin
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Old 10-07-2008, 02:59 PM
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Good Advise.
Like backing up your hard drive.
You never think about it until it is too late.
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Old 10-09-2008, 06:41 PM
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Quote:
Originally Posted by RadioDjKev View Post
If you have a Porsche Boxster and your battery go's dead, or you close your trunk while working on car when the battery is dis-connected (like I did) Here is some basic prep advise.

1-You can carry a small 12 volt battery jumper inside your car behind passenger seat, with a 2 foot long jumper wire. Small speaker wire..

You can open your front hood/trunk while putting 12 volts of power on the C3 fuse located in your fuse box 3rd row down 3rd fuse.

2-I also carry my Porsche tool bag inside the car behind my passenger seat. It is normally behind your spare tire in the front trunk. But if you can not get your trunk open a tow truck driver can not pull your Boxster up on a flatbed truck because he needs your tow hooks that are inside your tool bag...
Liability issues..Some Towing companies are affrade of Porsches.

You could actually get into a problem where you can not start your car, or even tow your car. It can make things more easy if you keep your tow hooks out of your trunk, and a battery jumper, and small fuse jumper wire inside your car.

There is also an emergency trunk release outside the car under the left fender well. It is rumored that some early boxsers 97,98,99 do not have it.,,some..

You could also pull (very hard) on the actual trunk release cable from inside the car behind the fuse box, but I would not recommend that one. You could break something.

Putting power to the C3 fuse is best, very easy, takes 1 minute!.

My car was locked, alarm set, battery disconnected, outside door key chuck broken (like that for years I never use it), I only used remote, While I was working on car. I left front trunk loose, but then someone decided to do me a favor and shut it all the way.LOL So I slim jim, get in, jump C3, no problem.

Hope this helps people.

Kevin
I always use a very small screwdriver to slip the lock over and which allows the front truck latch to be pulled normally. I found this trick on an internet search and it even had phots to show how to do it.
Old 01-27-2009, 08:39 PM
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It all depends on your model year

and if the emergency release cable in the front passenger wheel well has been moved in advance to behind the tow hook access port in the bumper.

More info here
Old 01-28-2009, 04:00 AM
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I went to the Boxster Summit in Blowing Rock, NC a couple of years ago and Pedro did the emergency trunk release hack. Very simple...

Take the right headlight out by pulling the carpet back and exposing the latch that secures it.
Reach inside the void and find the cable. Unwind it and snake it down to the tow attachment point on the front bumper. Wrap it around the support and leave it there.
Replace the headlight.
Next time you need to pop the trunk pry back the cover of the tow hook and you can pull it from there !
Voila
Old 02-01-2009, 04:57 AM
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I work at a Porsche dealer, with a few used cars that go for weeks without being driven. With a dead battery unable to activate the trunk release, I use the same method as RadioDjKev which is connecting an alternative battery; positive clamp to C3 which I'm pretty sure is the same on both 987 and 997 but it could be different; either way it is the RED fuse in the fuse box and the negative clamp on the door hinge. Enough to pop the front trunk and from there its all downhill.
Old 02-10-2009, 11:48 AM
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Cable in the lighter did not work. My C3 fuse is blue, not red. Got the rear hood open by using the remote with the wire in the C3 slot anyway. No luck on the front. So, what's next. Read about the emergency cable by the front wheel well, but have not tackled that. Does anyone have any pictures/diagram of what I am looking for?
Old 03-13-2009, 07:42 PM
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I had the same issue with my 2007 997 C4S. A closed trunk + dead battery = nightmare. The car was towed to here in Long Island, and the guys there knew exactly what to do since they are quite familiar with Porsches and the other European cars. They took the left (driver's side) front wheel off and the plastic covers from under the wheel well to expose the emergency trunk release cable. If you don't know exactly what to look for and have an untrained eye, you would never find it...or have an extremely difficult time locating it. Here are the pics.



Old 04-23-2010, 12:06 PM
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Cigarette lighter attachment works too

I successfully opened the front hood and rear trunk of my 2002 Boxster using the:

(1) 'Sears DieHard Portable Power 750 with 12 Volt Outlet and Light 71486' hooked to a

(2) 'Wagan EL9796 Easy Quick Jumper In-Car (i.e. plugs into cigarette lighter socket) Jumpstarter' and was able to open hood/trunk within 60 seconds.

I then used the 'Sears DieHard Portable Power 750 with 12 Volt Outlet and Light 71486'
to jump start the battery.

You can get the Wagan (Cigarette socket) contraption (i.e. basically 2 male socket cables, with safety device) for ~$20 and the Sears DieHard Portable Power 750 with 12 Volt Outlet and Light 71486 for ~$60.

The powerpack/external battery to the fuse works as well.

Last edited by brmille007; 10-31-2010 at 04:57 PM..
Old 10-31-2010, 04:26 PM
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holy ****! I sold that car over 1 year ago.
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Old 10-31-2010, 11:05 PM
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My dad put his cayman 2008 in a garage for the winter.
battery is removed
doors are lock
hood is close
what can i do?

thank you for your advice.
his there a little wire behind the front left wheel to open the hood on this model.
Old 03-06-2011, 02:17 PM
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get a metal blade saw and cut a large man hole in the roof.
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Old 03-06-2011, 03:49 PM
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Very funny. Yes, I believe that there is the same emergency release cable for the Cayman.

-Wayne
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Old 03-06-2011, 04:16 PM
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Just wanted to share today's success with getting the front lid open. 2004 Boxster S, customer replaced the switch but lid would not unlatch. Not a low battery problem, the actuator could be heard to move, but not hard enough. Used this forum and others to research the location of the emergency release cable. Seems the most common answer is "drivers side wheel well", but one post talked about the "passenger side wheel well". Pelican's picture of the latch shows the cables going off to the right, towards the passenger side. Sure enough, we finally found the cable on the passenger side, inside the headlight frame. As one poster mentioned, you cannot see it, but you can feel it. We will attach a red label to the loop for the next guy,
Old 03-10-2011, 04:26 AM
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The right side of the car can be the drivers side for some folks who consider us Yanks as driving on the wrong side of the road. On US cars...the hook/wire is towards the right side when seated in the car...left when standing in front.
Old 03-10-2011, 04:53 AM
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Just to be clear, is it on the left or right on a 987?
want to know for future reference.
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Old 03-10-2011, 07:47 AM
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Cool, thanks for posting the photo. 10,000+ views on this thread alone - man, this *must* be a very, very common problem!

-Wayne
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Old 03-10-2011, 10:01 AM
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Cigarettte Lighter

I took the battery out of my 2007 Cayman for winter storage and locked the trunk before thinking. Purchased the adapter for the cigarette lighter and 2 aligator clips at Radio Shack, rigged up 4 feet of wire, attached it to the battery that I had taken out, and viola; instant power with no dissembly required. Thanks to this site for the idea - this has been stored inside the car if the battery ever calves.

BTW, Porsche tells me that I'll have to drop in for an hour's labour to clear the fault codes when the battery is hooked up. Anybody have experience with these codes working themselves back to normal after X hours of running time or is the trip to the dealer an imperative.

Cheers
Old 03-12-2011, 05:06 AM
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Assuming there is an electrical outlet, just buy a battery maintainer and leave it connected if storing for extended periods.
If not, and the battery is removed/disconnected, click the front trunk lock into the locked postion and don't close the lid.
Fully charge the battery before use.
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Old 03-12-2011, 11:50 AM
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Agree with the battery maintainer idea - it's actually better to trickle charge the battery than to remove it from the car altogether. Article on this right here: Pelican Technical Article: Boxster Battery Disconnect Switch / Battery Buddy Installation - 986 / 987

As for the codes, they should reset themselves, possibly when you reconnect the battery, or you can buy the Durametric laptop software (Pelican Technical Article: Reading Boxster Fuel Injection Fault Codes / Diagnosing Problems - 986 / 987) and reset them yourself.

-Wayne
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101 Projects for Your BMW 3-Series 101 Projects for Your Porsche 911 How to Rebuild & Modify Porsche 911 Engines 101 Projects for Your Porsche Boxster & Cayman 101 Projects for Your Porsche 996 / 997
Coming in 2014:
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Old 03-12-2011, 09:21 PM
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