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2007 MB GL450 Rear tailgate problem: GL 450 Rear tailgate
GL 450 Rear tailgate problem: Tailgate latch would not unlock when opening intermittently (when switch is activated latch does not unlock and hydraulics time out after a few seconds). Installed new latch and it still will not unlatch intermittenly. I have figured out that it seems to work better when the ambient temp is below 60F. If it sits in the hot sun it will not work and in the morning it works ok. I removed the Rear SAM module and removed the board from the plastic housing. Everything looks great (no signs of corrosion anywhere). There are 8 wires that run from the rear sam directly to the door latch. With the connector disconnected from the latch I Get 12V constant at pin 5 (red/wht) all other pins have ground signal present. I checked all of the pins for continuity between latch connector and SAM connector and all have less than 1 ohm. I also checked all pins except 5(12V) for continuity to ground between latch connector and ground with SAM connector disconnected and they are open. Using Autel MS906 the only codes present in rear SAM are 90E0 & 90DE - Obstruction sensors of the left and right Vent window has short to ground. These are hard codes which will not erase and are preventing the rear vent windows from operating as well. I'm thinking that I need to replace the rear SAM but am not sure. I would like to know what the function of the 8 wires to the latch are to be sure. Cannot find this info anywhere. … read more
Lou P. master tech
Lou P. master tech
Mercedes Technician
Bachelor's Degree
6,542 satisfied customers
Mercedes mlThe 3rd brake light doesn't work nor does my rear
Mercedes ml(###) ###-####The 3rd brake light doesn't work nor does my rear hatch lock down and at the same time there's a drain on my battery because the interior lights stay on. I pull the fuse when … read more
Danny
Danny
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High School or GED
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Liftgate on a GL450 will not operate or lock, 2007 GL450
Looking for fuse box to see if fuse is blown or a fuse … read more
Lou P. master tech
Lou P. master tech
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The power liftgate on my 2006 ml500 is not working. And just
the power liftgate on my 2006 ml500 is not working … read more
Pete
Pete
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My ML 350 front seats power and rear cargo lid latch are not
My ML 350 front seats power and rear cargo lid latch are not working. I cannot move the passenger seat forward to get the battery out to check fuses and whatever else might be there. Is there a way to… read more
Lou P. master tech
Lou P. master tech
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Mercedes ML350 2009- Need the definition of actuator and
Mercedes ML350 2009- Need the definition of actuator and if these part #'s follow under "actuator" or "Servo motor". I have found below information as reference: PART #1: Rear Hatch Latch Part #:(###)… read more
Juan Crespo
Juan Crespo
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My 2013 gl450 tailgate won't unlock. i was working just 1hr
hi my 2013 gl450 tailgate won't unlock. i was working just 1hr ago, after driving home it won't unlock. i tried the key, the button on the tailgate, and the button inside the car all of them won't wor… read more
Lou P. master tech
Lou P. master tech
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GL450: Michael, I have a 2007 GL450 that the hatch will not
Michael, I have a 2007 GL450 that the hatch will not Open with from clicking the button on the front driver panel and from outside in the rear. If we pull the lever from the inside gate everything wor… read more
Pete
Pete
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GL450: 2008 GL450 rear hatch only releases manually. Auto release
2008 GL450 rear hatch only releases manually. Auto release does not work, but the hatch will auto open once manually released and it will auto close, somtimes locking all the way and other times latch… read more
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ML350: I have a 2007 ML 350. The battery went dead so I jump
I have a 2007 ML 350. The battery went dead so I jump it and now its fine. The problem is the automatic hatch does not open or close. It does latch. It worked fine before the battery issue. Thanks for… read more
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2006 ML...floor board lights and dome in rear stay on. Just
2006 ML...floor board lights and dome in rear stay on. Just happened. Closed all doors several times. other lights on timer shut off properly. Help?… read more
Marty
Marty
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gl450: I have a 2007 Mercedes GL450 and the rear hatch opens/closes
I have a 2007 Mercedes GL450 and the rear hatch opens/closes but will not latch or lock... I can't check fuses as the fuse Diagram has been lost...… read more
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Mercedes-Benz GL450: I drive a gl430 and back hatch door will
I drive a gl430 and back hatch door will not shut and the way and lock. Seems like the lach does not engage. The rest of the door lock and unlock, but it will not lock. Any thoughts?… read more
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ML350: hatch door..mysteriously..me the wiring diagram shows it
My ML350 (2006) hatch door is mysteriously stuck shut. They tell me the wiring diagram shows it having a button to automatically close the hatch but this vehicle does not have one. I originally though… read more
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Mercedes-Benz ML350 Mercedes ML 350 the back hatch will shut
Mercedes ML 350 the back hatch will shut manually, but the automatic close shuts and then pops back open. What could be the problem?… read more
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Mercedes: Door Lock..unlock..I replaced the rear door latch actuator
Mercedes Door Lock Question ML430 2001 When unlock is actuated all but the rear hatch unlock. When lock is actuated all doors lock, unlock, then lock again. On previous advice, I replaced the rear doo… read more
Lou P. master tech
Lou P. master tech
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320 wagon: My 1998 e..warms..interior rear courtesy lights..doors
My 1998 e 320 wagon rear tailgate close assist is strangely only operating in the morning when it is cold. After the day warms up it will not "suck" the door down which in turn prevents the interior r… read more
Marty
Marty
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I just bought a 1999 E320 station wagon. Everything is
I just bought a 1999 E320 station wagon. Everything is pretty great except once the electronic latch opens on the rear station wagon hatch door, the door hangs up. If I pull back, it just doesn't clea… read more
MB Paul
MB Paul
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Vocational, Technical or Trade Scho
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MB Paul

MB Paul

Mercedes Technician

3,567 satisfied customers

Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes

Marty

Marty

Mercedes Technician

29,460 satisfied customers

Bosch Certified Master Tech. Over 35 years experience.

Lou P. master tech

Lou P. master tech

Mercedes Technician

6,542 satisfied customers

20 years Master Certified excellent fix rate and have access to factory wiring, and instructions.

Michael Warfield

Michael Warfield

Factory Mercedes-Benz Technician

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Mercedes-Benz Master Certified technician

Matt

Matt

Engineer

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Mechanical Engineer with 23 years experience in the auto industry, 8 yrs in formula 1 engine testing

promerc

promerc

mercedes diagnostic technician

553 satisfied customers

Qualified mercedes diagnostic technician & service team manager , ATA registered Master tech

Hipo64

Hipo64

Mercedes Technician

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Work and diagnose electronics on daily basis.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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