Windows & Moonroof opened themselves in rain
Thread Starter
Newbie
Joined: Jan 2015
Posts: 4
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E550, E350, CL550
Windows & Moonroof opened themselves in rain
I have several Mercedes and especially love the E Class. But we have a 2007 E350 that was just serviced that for no reason at all, while turned off and no key in it, lowered all 4 windows and opened the moon roof when it started to rain tonight! I've read that BMW's had this problem in the late 90's and that is was the driver door lock actuator. Has anyone heard of this or have a solution. This car is in PERFECT condition and has never given us a single problem. That this happened right after it being in service only a day ago..makes me wonder.
Thank you for your consideration and feedback. Help! Has anyone heard of this before??
Thank you for your consideration and feedback. Help! Has anyone heard of this before??
Junior Member
Joined: Aug 2014
Posts: 27
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From: Bend, OR
06 e500 4matic wagon
The car has a summer opening function that has been known to stop working fairly often. Was the work on the car involving the driver side door handle? There is a small black plastic square in the driver side door handle that is the IR receiver for the summer opening function. I would take your key to about 3 feet from that square and hold the small end of the key towards it. Hold the unlock button down and see if all windows lower. If they do, hold the lock button down and see if they close. If the function isn't there or is flaky that may be your problem. Perhaps water got in there when it rained. If it works ok it might be something else. The recirc button on the heater controls has the ability to close all windows and sunroof but only if the car is running. Good luck.
MBWorld Fanatic!
Joined: Feb 2014
Posts: 6,190
Likes: 1,550
From: MA
2008 E350 4Matic, 2011 E350 4matic
I think that's the summer opening feature. I think there's an IR sensor on the door handle. There's some other threads about how it goes bad after a while and how to repair it. Maybe it's shorted in the rain and thinks you want to open all windows/sunroof to cool the car off.
Out Of Control!!
Joined: Jul 2003
Posts: 15,901
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From: North Scottsdale, AZ
'71 Pinto
Did windows/roof open partially or completely, maybe key button was somehow pressed accidentally. Odd, summer feature is IR dependent, I suggest having shop revisit to check with MB DAS.
Last edited by konigstiger; Feb 1, 2015 at 10:39 AM.
Senior Member
Joined: Aug 2009
Posts: 467
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From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
I have several Mercedes and especially love the E Class. But we have a 2007 E350 that was just serviced that for no reason at all, while turned off and no key in it, lowered all 4 windows and opened the moon roof when it started to rain tonight! I've read that BMW's had this problem in the late 90's and that is was the driver door lock actuator. Has anyone heard of this or have a solution. This car is in PERFECT condition and has never given us a single problem. That this happened right after it being in service only a day ago..makes me wonder.
Thank you for your consideration and feedback. Help! Has anyone heard of this before??
Thank you for your consideration and feedback. Help! Has anyone heard of this before??
Thread Starter
Newbie
Joined: Jan 2015
Posts: 4
Likes: 0
E550, E350, CL550
Sincere Thanks!
I sincerely appreciate the feedback to my post. They look to pinpoint the problem. The Key IR has been having problems (by not recognizing the key) during unlock and pulling the handle open. So i'm willing to bet the issues you've all brought up pinpoint it.
Thank you!
Thank you!
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MBWorld Fanatic!
Joined: Jan 2014
Posts: 3,969
Likes: 1,317
From: Republic of Texas
'99 and '05 E55 AMG
Forgive me, but I laughed out loud when I read your post! And I felt very, very bad about it. 
About a decade ago, I drove my Miata to Hamilton Pool, Texas, left the top and windows down, and went swimming (the pool is about 3/4 mile away from the parking lot). A summer thunderstorm hit and I knew there was nothing I could do about my car so I just hung out at the swimming area with friends and family. When I got back to my Miata, the seats and floorboard were filled with water and water literally poured over the door jambs when I opened the door. Thank God the beautiful little car started and got me home safely.
https://www.google.com/search?q=hami...A&ved=0CDcQsAQ
Your post reminded me of that day. Hope it works out for you.
About a decade ago, I drove my Miata to Hamilton Pool, Texas, left the top and windows down, and went swimming (the pool is about 3/4 mile away from the parking lot). A summer thunderstorm hit and I knew there was nothing I could do about my car so I just hung out at the swimming area with friends and family. When I got back to my Miata, the seats and floorboard were filled with water and water literally poured over the door jambs when I opened the door. Thank God the beautiful little car started and got me home safely.
https://www.google.com/search?q=hami...A&ved=0CDcQsAQ
Your post reminded me of that day. Hope it works out for you.
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