E350 trunk opens
Member
Joined: Sep 2012
Posts: 204
Likes: 6
From: England
Mercedes E350 CD Iridium silver convertible 2010
Given it was the trunk only opening and the doors remaining locked with the alarm functioning probably means that the key fob tab for the boot has been hit! Whilst you have to hold the button down more to open the boot, nevertheless it happens. To my own annoyance I have done it a couple of times. I have even unlocked the car under the same circumstances. How ? keys in a pocket or jacket, would never have believed it could happen but believe me it has, a jacket pocket, a trouser pocket same issues.
The boot opening and not setting off the alarm is why I believe that is your issue. When the key is used to open the boot with the car in lock down, it bypasses the alarm purely for the boot space.
Whilst the alarm will reset if you have not opened a door, the same is not for the boot. When it happened to me I was glad the damn boot lid struts and springs did not cause the boot to open more than an inch.
The boot opening and not setting off the alarm is why I believe that is your issue. When the key is used to open the boot with the car in lock down, it bypasses the alarm purely for the boot space.
Whilst the alarm will reset if you have not opened a door, the same is not for the boot. When it happened to me I was glad the damn boot lid struts and springs did not cause the boot to open more than an inch.
Last edited by theraven333; Jan 18, 2016 at 08:12 AM.
Thread Starter
Junior Member
Joined: Jul 2015
Posts: 34
Likes: 0
From: LA
C207
Thanks so much for the reply. Sounds right but the first time I was on the second story of a building with underground parking and I do not think my remote would reach.
I saw something about a panel under the rear seat that could have a malfunction.
I saw something about a panel under the rear seat that could have a malfunction.
Super Member
Joined: Sep 2015
Posts: 725
Likes: 189
From: Chicago area
2015 E400 and 2015 GLK350
I had the same issue. My 2015 E-Class trunk opened by itself 4 times -- 3 times at home in a detached garage, with the key fob upstairs on a desktop; the 4th time it opened while the car was parked outside the building where I work. (I even got that one on the security video system.) I do not think it is that I hit the trunk button on the fob, as it was not even in my pocket or on my person 3 of the 4 times it opened.
I was sure I was in for a real treat, trying to work with a service advisor to troubleshoot this electronic gremlin.
Well, it wasn't bad at all. When I mentioned the situation to the service advisor, he said that they would check other service tickets they have worked, and will also check with other dealers on-line. He quickly came back to me and told me that they have had one other issue exactly like mine, and that car required replacement of its rear SAM (Signal Acquisition Module, IIRC). So, they took my car in and just replaced that module.
I just picked up my car last Saturday, so I'm not sure that this was the problem, but the dealer service advisor seems convinced. Work was done under warranty, and at least they did what they believed would solve the problem, rather than just giving me the dreaded "Cannot replicate issue" notice.
I was sure I was in for a real treat, trying to work with a service advisor to troubleshoot this electronic gremlin.
Well, it wasn't bad at all. When I mentioned the situation to the service advisor, he said that they would check other service tickets they have worked, and will also check with other dealers on-line. He quickly came back to me and told me that they have had one other issue exactly like mine, and that car required replacement of its rear SAM (Signal Acquisition Module, IIRC). So, they took my car in and just replaced that module.
I just picked up my car last Saturday, so I'm not sure that this was the problem, but the dealer service advisor seems convinced. Work was done under warranty, and at least they did what they believed would solve the problem, rather than just giving me the dreaded "Cannot replicate issue" notice.
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Joined: Jul 2013
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Likes: 134
From: Down Unda
W204 C63 AMG, W212 E250 CGI, C207 E250 CGI
I hope OP still has warranty on his car as a rear SAM could be expensive. I had a different problem with my coupe but same solution. seatbelts not extending and not tightening. replaced rear SAM under warranty. dealer said would have cost me AU$3000 including labor, i just rolled my eyes.
goodluck and hope you fix your problem at minimal cost.
goodluck and hope you fix your problem at minimal cost.
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Super Member
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2015 E400 and 2015 GLK350
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Thread Starter
Junior Member
Joined: Jul 2015
Posts: 34
Likes: 0
From: LA
C207
Can I get the name and number of your service advisor as mine won't do anything because there is nothing showing up on the service codes. They have had my car for three days now. Frustrating!
Thanks
Thanks
Thread Starter
Junior Member
Joined: Jul 2015
Posts: 34
Likes: 0
From: LA
C207
Finally fixed. Went to a second dealer , Downtown LA Mercedes, who was aggressive enough to replace the SAM unit even though the codes didn't indicate a problem.
Hopefully the problem is in the past. So far so good though only 3 days.
Hopefully the problem is in the past. So far so good though only 3 days.
