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Keys locked in the trunk of 2005 mercedes benz S500

I accidently locked the car keys in the trunk of my 2005 Mercedes benz S500 and cant open it now. When I try opening the doors the alarm sounds and it doesnt let me open the trunk from inside the car.
What shall I do?

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6 Suggested Answers

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Posted on Jan 02, 2017

sickforvws
  • 39 Answers

SOURCE: 1998 s500 mercedes benz trunk will not open

Try the fuse first. If you have done this than the problem could be in the actuator on the trunk latch. Poss loose/bad wire or faulty unit? I hope this helps!

Posted on Jan 30, 2009

  • 2 Answers

SOURCE: how do you disable the alarm on a mercedes benz 300E 1987

Use your door key and unlock your drivers door ... that is what disables the alarm system. Make sure that the battery is rehooked... because i'm sure you took the battery loose when you couldn't get the alarm to turn off.

Posted on Nov 17, 2008

  • 11 Answers

SOURCE: replacing the battery in a 2001 mercedes benz

Battery base has a device that clamps the battery on a step/notch on the side. Use a ratchet with an extension to loosen. Once it is loose you can remove the battery.

Posted on Apr 03, 2009

  • 2 Answers

SOURCE: 2005 mercedes e320 cdi both keys locked in trunk how to open????

Had the same problem and had to cut a hole in behind the rear centre arm rest to retrieve both sets of keys. I cleaned up the area and made it into a ski hatch or for passing fishing rods thro. MERKYS320

Posted on Apr 25, 2009

  • 15 Answers

SOURCE: 2002 mercedes s500 trunk will not open

Hi there
First of all may i say i feel your pain. literally. the same thing happened to mine. here is what i did
Firstly i needed into a locked boot urgently (for wifes wheelchair)
so i cut a rectangle out of the boot put my hand in and pulled the release mechanism, that worked but left me with a hole in my boot.
I suggest that you try this instead.
remove back seat
the central locking pump is located next to the battery (black box with yellow air lines going into it.)
Unplugg the filler cap cover air line, then unplugg the boot air line and put it into the filler cap cover socket.
now when you unlock the car the boot should automatically open.
If it does not the problem it on the boot air line and you should strip the trim out of the boot to check, but you still have to get in and may have to do what i did initially.
If changing the air line worked then you will soon get tired of having to shut the boot everytime i solved this problem by routing the filler cap air line to a pnuematic switch (LEGO) This switches between the boot and the filler cap. bit naff but it works and cheaper than having to replace pump and have computer and keys re-coded total cost around £600.
op that helps

Posted on May 01, 2009

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