Trunk pops open by itself?
Thread Starter
Senior Member
Joined: Aug 2008
Posts: 436
Likes: 2
From: British Columbia
2011 E350 4 Matic
Trunk pops open by itself?
On a few occasions I have noticed that the trunk opens by itself, this has happened 4-5 times now, in almost all cases this would happen in my garage but 2 days ago I was parked in a mall parking lot (with two laptops in the trunk) and luckily they nothing was taken but now I am paranoid to leave anything in the car.
I already had MB look at this, but they could not find anything wrong. Does anyone else have any issues with the trunk popping up on it own?
I already had MB look at this, but they could not find anything wrong. Does anyone else have any issues with the trunk popping up on it own?
Thread Starter
Senior Member
Joined: Aug 2008
Posts: 436
Likes: 2
From: British Columbia
2011 E350 4 Matic
Thats the point, just need to know whether it is an isolated issue (my car) or whether it is happening to other 204 owners because Mercedes service department cant find the issue
Super Member
Joined: Dec 2007
Posts: 648
Likes: 1
From: Seattle
C-300, XC70, Wrangler
Not an isolated issue. I check my car each night before bed to ensure that the trunk lid is closed.
Um, there's a simple explanation: your pants pocket is too tight. Or you've got too much stuff in there! It doesn't take much for that button to be pressed, and then the trunk opens. Mine hasn't opened away from home because I check it as i walk away, and carefully stuff the key where it's not going to be pressed accidentally. But at night, well anywhere in the house that I tap that button, the trunk will open.
Wear baggy pants!
Um, there's a simple explanation: your pants pocket is too tight. Or you've got too much stuff in there! It doesn't take much for that button to be pressed, and then the trunk opens. Mine hasn't opened away from home because I check it as i walk away, and carefully stuff the key where it's not going to be pressed accidentally. But at night, well anywhere in the house that I tap that button, the trunk will open.
Wear baggy pants!
MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,986
Likes: 6
From: SEATTLE WASHINGTON USA
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
Opening the lid
Not an isolated issue. I check my car each night before bed to ensure that the trunk lid is closed.
Um, there's a simple explanation: your pants pocket is too tight. Or you've got too much stuff in there! It doesn't take much for that button to be pressed, and then the trunk opens. Mine hasn't opened away from home because I check it as i walk away, and carefully stuff the key where it's not going to be pressed accidentally. But at night, well anywhere in the house that I tap that button, the trunk will open.
Wear baggy pants!
Um, there's a simple explanation: your pants pocket is too tight. Or you've got too much stuff in there! It doesn't take much for that button to be pressed, and then the trunk opens. Mine hasn't opened away from home because I check it as i walk away, and carefully stuff the key where it's not going to be pressed accidentally. But at night, well anywhere in the house that I tap that button, the trunk will open.
Wear baggy pants!
So I unbelt, get out and slam it shut from the side.
Senior Member
Joined: Oct 2005
Posts: 387
Likes: 0
From: East Bay, CA
MB w204 C300 Sport, Audi B7 A4 2.0TQ, Porsche Cayman 981
its happened to me a few times when i have my key in my pocket...then i bend down to tie my shoes...POP...i'm pressing down on the trunk button.
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MBworld Guru
Joined: Apr 2002
Posts: 22,058
Likes: 19
From: Diamond Bar, CA
W206 PHEV AMG
my loaner C350's trunk doesn't open at night unless you use the metal key (key fob doesn't work, trunk release on the door doesn't work, and trunk handle release doesn't work either). now that's haunted. no issue with my 204 tho.
MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,986
Likes: 6
From: SEATTLE WASHINGTON USA
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
Trunk no open
Every MB trunk release button going back to the year dot can be disabled in a similar way. Some you turn 180 degrees.
Super Member
Joined: Apr 2007
Posts: 565
Likes: 0
From: Indianapolis, IN
2008 C350
This happened to me just last week. I walked out to the garage in the morning and wondering why the heck my trunk was open...grrr.
Not an isolated issue.
They should make the key fob only activate the trunk release after you press it twice and hold. That's the way it is on my GL, that is a power tailgate though.
Not an isolated issue.
They should make the key fob only activate the trunk release after you press it twice and hold. That's the way it is on my GL, that is a power tailgate though.
MBworld Guru
Joined: Apr 2002
Posts: 22,058
Likes: 19
From: Diamond Bar, CA
W206 PHEV AMG
Senior Member
Joined: Jan 2007
Posts: 353
Likes: 0
From: Wilmington,NC
E63
Couple reasons come to mind
Not sure how feasable these are:
?Pants too tight? They would have to be REALLY tight!!
Kids playing with the FOB?
We don't have keyless go but, did you know that if you lock the doors with the trunk open, toss the FOB into the trunk then close it that it will pop back open?
?Pants too tight? They would have to be REALLY tight!!
Kids playing with the FOB?
We don't have keyless go but, did you know that if you lock the doors with the trunk open, toss the FOB into the trunk then close it that it will pop back open?
Super Member
Joined: Dec 2007
Posts: 648
Likes: 1
From: Seattle
C-300, XC70, Wrangler
Actually, as mentioned above, all you have to do is bend over to pick something up and it will sometimes pop open the trunk. The button is too easy to accidentally set off. And don't forget, there may be other things in that pocket.
Newbie
Joined: Dec 2023
Posts: 1
Likes: 0
S550
Trunk wont stay closed on S550
Not an isolated issue. I check my car each night before bed to ensure that the trunk lid is closed.
Um, there's a simple explanation: your pants pocket is too tight. Or you've got too much stuff in there! It doesn't take much for that button to be pressed, and then the trunk opens. Mine hasn't opened away from home because I check it as i walk away, and carefully stuff the key where it's not going to be pressed accidentally. But at night, well anywhere in the house that I tap that button, the trunk will open.
Wear baggy pants!
Um, there's a simple explanation: your pants pocket is too tight. Or you've got too much stuff in there! It doesn't take much for that button to be pressed, and then the trunk opens. Mine hasn't opened away from home because I check it as i walk away, and carefully stuff the key where it's not going to be pressed accidentally. But at night, well anywhere in the house that I tap that button, the trunk will open.
Wear baggy pants!
