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So you locked your keys in your trunk and your alarm is armed

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So you locked your keys in your trunk and your alarm is armed

 
Old 03-07-2009, 03:23 PM
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So you locked your keys in your trunk and your alarm is armed

Usually you have to take the car to MB or call roadside. This procedure (according to roadside from Alexandria Mercedes) is NOT free. It cost me. Anyhow- I watched the tech and this is what he did below:


Just get the doors open then open the fuse console that is along the drivers door on the outside of your dashboard- the door closes on it. Pull out the 4 fuses on the left (7.5 and 5 amps) and then wait a few secs- put them back in and see if the door unlock switch works. If it does- the security system is deactivated and you can use the trunk release to open the trunk. Tech said that if those fuses don't work- pull 4 at a time till you get to the right ones. I tried it in my ml and it worked as well.


TECH MENTIONED THIS WILL WORK FOR ALL NEWER MODELS.

Last edited by itsmeek; 03-07-2009 at 03:28 PM.
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giuseppesalvato (02-17-2018)
Old 06-09-2009, 11:13 AM
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CLK 500
noted
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Old 06-09-2009, 11:07 PM
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2005 SL55 AMG, 1986 Porsche 930S, 1996 Porsche 993tt
thanks
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Old 09-14-2015, 04:07 PM
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2008 C300
Hello itsmeek

Your instructions helped 1/2 way. I got the fusebox open, only 1 fuse wire connected -- I unplugged - waited several seconds and re-plugged. The door lock switch worked! But the trunk release did not work.

Is there anything else I need to know? I have a 2008 C300 and keys locked in trunk (I lost my spare keys)

Thanks!
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Old 09-15-2015, 02:39 PM
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cl600
you might be able to buy another key from mercedes.
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Old 11-02-2017, 06:05 PM
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2005 Mercedes E55, 2006 Mercedes S55, 2006 Mercedes CLS55
This works 100% but you actually only need to pull one fuse which is the 7.5A, third from the bottom on the left side.
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Old 08-01-2018, 06:33 AM
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2003 s500
Originally Posted by itsmeek View Post
Usually you have to take the car to MB or call roadside. This procedure (according to roadside from Alexandria Mercedes) is NOT free. It cost me. Anyhow- I watched the tech and this is what he did below:


Just get the doors open then open the fuse console that is along the drivers door on the outside of your dashboard- the door closes on it. Pull out the 4 fuses on the left (7.5 and 5 amps) and then wait a few secs- put them back in and see if the door unlock switch works. If it does- the security system is deactivated and you can use the trunk release to open the trunk. Tech said that if those fuses don't work- pull 4 at a time till you get to the right ones. I tried it in my ml and it worked as well.


TECH MENTIONED THIS WILL WORK FOR ALL NEWER MODELS.
will this work on 2003 S500? Also did your alarm go off when you opened your door ? Did the alarm stop once you removed and replaced the fuses?
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biker349 (08-01-2018)
Old 02-25-2019, 08:57 PM
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that must be why car always reminds me to take my key!
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