Trunk will not close - MBWorld.org Forums

Notices
GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

Trunk will not close

 
Old 01-05-2019, 08:35 PM
  #1  
Newbie
Thread Starter
 
Join Date: Jan 2019
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
2009 Mercedes Benz GL320
Post Trunk will not close

Hi everyone!

I have a 2009 GL320. Recently my trunk will not close. It opens perfectly fine and when I press the close button it makes the beeping sound but doesn't close. If I close it by hand it doesn't suck it in, if I close it a little harder then it closes properly but I would still get the trunk open warning on my cluster. It also drains the battery over night, I took out fuse 40 which is for the trunk but it is still draining the battery but not at such fast pace. Before if I would try to unlock it in the morning it would not even unlock but after taking out fuse 40 I can at least unlock the doors automatically and then jump start it.
I have tried cleaning the latch and hinges with WD40, I have checked the hydraulic pump it looks fine and the fluid is up to the mark, I have also tightened all the screws just to be sure but nothing seems to work.
I have searched around the forums but I can not see anyone having a similar problem.

Any help would be greatly appreciated!
yperry is offline  
Old 01-07-2019, 11:10 AM
  #2  
alx
MBWorld Fanatic!
 
Join Date: Dec 2004
Posts: 4,147
Thanked 186 Times in 164 Posts
your pump piston is worn out and not building pressure. on 09s it is about their time

there is also an update for the rear sam that might or might not fix your battery drainage.
alx is offline  
Old 01-08-2019, 05:39 AM
  #3  
Newbie
Thread Starter
 
Join Date: Jan 2019
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
2009 Mercedes Benz GL320
Suction

Thank you Alx. I will try to see if I can get the pistons or else change the whole pump.
Also it makes sense that the trunk won’t close due to the worn pistons but why won’t it suck the trunk to latch properly?
yperry is offline  
Old 01-08-2019, 03:27 PM
  #4  
Newbie
 
Join Date: May 2007
Posts: 9
Thanked 3 Times in 2 Posts
2009 gl320
I also have a 2009 GL320 with a similar issue. It always opens fine but not for closing. After couple of tries with the remote or button the door will eventually close properly. I did a scan with the Carly app. and it says the following: REDC - Rear-end door closing control module (MB: 1648209526) Fault: Component N121/1 (Rear-end door closing control module) has a malfunction. There is an internal electrical fault. Code: A24E49. I probably have to replace the rear SAM at some point.
I think you might have a more severe case if it doesn't want to close at all.
edvaru is offline  
Old 01-08-2019, 05:41 PM
  #5  
Senior Member
 
Join Date: Mar 2009
Location: CT
Posts: 344
Thanks: 0
Thanked 15 Times in 13 Posts
GL 320, 993TT, BMW 550XI
There are two adjustment rubber plugs on the frame side of the vehicle halfway up just above the tail lights. I always turn them to pop out more during winter so the tailgate would close properly.
chsu74 is online now  
Old 01-08-2019, 05:46 PM
  #6  
Member
 
Join Date: Sep 2018
Posts: 96
Thanked 0 Times in 0 Posts
2010 GL 550 + 2010 GLK 350
I'll just tell you the stupidest thing

When I do that via the close button with the lock icon, it beeps and doesn't close. I realized that in order to use that button, you need to have the key with you.
You key fob battery might be weak if your vehicle is equipped with keyless go.
if not, please totally ignore this comment.
ignorant is offline  
Old 01-24-2019, 08:38 PM
  #7  
Newbie
Thread Starter
 
Join Date: Jan 2019
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
2009 Mercedes Benz GL320
Originally Posted by chsu74 View Post
There are two adjustment rubber plugs on the frame side of the vehicle halfway up just above the tail lights. I always turn them to pop out more during winter so the tailgate would close properly.
I have read that on several forums butI could not be sure on where these plugs exactly are. It would be really good if you could sen me some photos or perhaps a video in that way I can exactly know what I have to look for. Thanks in advance!
yperry is offline  
Old 01-24-2019, 08:42 PM
  #8  
Newbie
Thread Starter
 
Join Date: Jan 2019
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
2009 Mercedes Benz GL320
Originally Posted by ignorant View Post
I'll just tell you the stupidest thing

When I do that via the close button with the lock icon, it beeps and doesn't close. I realized that in order to use that button, you need to have the key with you.
You key fob battery might be weak if your vehicle is equipped with keyless go.
if not, please totally ignore this comment.
I can understand if keyfob battery is low but why would it not close with the button on the tailgate or the one on the driver side door. Because it opens fine using these buttons?
yperry is offline  
Old 01-24-2019, 08:46 PM
  #9  
Newbie
Thread Starter
 
Join Date: Jan 2019
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
2009 Mercedes Benz GL320
Originally Posted by edvaru View Post
I also have a 2009 GL320 with a similar issue. It always opens fine but not for closing. After couple of tries with the remote or button the door will eventually close properly. I did a scan with the Carly app. and it says the following: REDC - Rear-end door closing control module (MB: 1648209526) Fault: Component N121/1 (Rear-end door closing control module) has a malfunction. There is an internal electrical fault. Code: A24E49. I probably have to replace the rear SAM at some point.
I think you might have a more severe case if it doesn't want to close at all.
I hope that is not the case but I have tried everything that I could with my little knowledge and all your help. I guess I would have to take it to the dealer so they can diagnose it. fingers crossed hope it is not a massive bill.
yperry is offline  
Old 01-24-2019, 08:53 PM
  #10  
Newbie
Thread Starter
 
Join Date: Jan 2019
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
2009 Mercedes Benz GL320
Des anyone know where I can find the fuse for trunk latch. Fuse 40 in the trunk is for the pump but after pulling it out the latch still works. What could be the fuse for that because I believe it is also draining the battery. I can probably take out the fuses until I get the trunk fixed.
yperry is offline  
 

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Trunk will not close


Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: