S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

W221 TRUNK CLOSE BUTTON SWITCH HELP

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 8, 2019 | 10:02 PM
  #1  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
W221 TRUNK CLOSE BUTTON SWITCH HELP

2008 S550,trunk opens from door panel, from remote control, from trunk button but doesn't goes up automatically, needs to be open by hand and same way to close.

The open and close red button doesn't illuminate.

It was working fine before until the day i left the trunk opened for about an 40minutes, then the close button didn't illuminate and i pressed, it didn't close the trunk.

Since then, I have been slamming and pulling it manually. I tested the voltage going to the switch, i got 11+ voltage. So I replaced the Trunk lock close button switch, but still didn't illuminate.

Does any one know which fuse controls the close button switch? or is there anything else since i got 11volt from one of the switch wires?


Reply
Old Dec 9, 2019 | 09:29 AM
  #2  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,633
From: North Scottsdale, AZ
'71 Pinto
Pull 147 @ rear SAM for 15 minutes or so with trunk closed in an attempt to reset RTC CU.

Last edited by konigstiger; Dec 9, 2019 at 01:22 PM.
Reply
Old Dec 9, 2019 | 10:10 PM
  #3  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Originally Posted by konigstiger
Pull 147 @ rear SAM for 15 minutes or so with trunk closed in an attempt to reset RTC CU.
Thanks man. It says remote trunk closing?
Reply
Old Dec 10, 2019 | 07:49 AM
  #4  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,633
From: North Scottsdale, AZ
'71 Pinto
Does your data card show code 881 if so, 147 (control unit) is applicable.
Reply
Old Dec 12, 2019 | 06:59 PM
  #5  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Originally Posted by konigstiger
Does your data card show code 881 if so, 147 (control unit) is applicable.
thank you. Pls I'm a rookie. What do you mean by data card code?
Reply
Old Dec 13, 2019 | 08:29 AM
  #6  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,633
From: North Scottsdale, AZ
'71 Pinto
VIN?
Reply
Old Dec 13, 2019 | 04:15 PM
  #7  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Originally Posted by konigstiger
VIN?
WDDNG71X28A194970
Reply
Old Dec 13, 2019 | 04:34 PM
  #8  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,633
From: North Scottsdale, AZ
'71 Pinto
Vehicle is equipped with 881 remote boot lid closing so pull 147 @ rear SAM for 15 minutes or so with trunk closed in an attempt to reset control unit. No guarantee nevertheless, worth a try.



Attached Files
File Type: pdf
WDD2211711A194970.pdf (130.2 KB, 295 views)
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

8 Oddball Mercedes Ideas That Actually Made it to Production

 Verdad Gallardo
story-1

Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

 Verdad Gallardo
story-2

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-3

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-4

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-5

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-6

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-7

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-8

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-9

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
Old Dec 13, 2019 | 07:25 PM
  #9  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Originally Posted by konigstiger
Vehicle is equipped with 881 remote boot lid closing so pull 147 @ rear SAM for 15 minutes or so with trunk closed in an attempt to reset control unit. No guarantee nevertheless, worth a try.


my 147 has no fuse connection
Reply
Old Dec 14, 2019 | 09:41 AM
  #10  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,633
From: North Scottsdale, AZ
'71 Pinto
Odd, check your PM.
Reply
Old Jan 10, 2020 | 04:56 PM
  #11  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
THANKS TO EVERYONE THAT CONTRIBUTED.. IT WAS THE MODULE THAT GOT CORRODED. I think water got inside
Reply
Old Feb 7, 2020 | 09:44 AM
  #12  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Originally Posted by azontodance
THANKS TO EVERYONE THAT CONTRIBUTED.. IT WAS THE MODULE THAT GOT CORRODED. I think water got inside

So now with the new module, the trunk pulls up, but doesn't go down with the button or remote. I have to pull it down with my hand.

But it pulls up when open with remote or button
Reply
Old Feb 9, 2020 | 05:43 PM
  #13  
Polar Bear's Avatar
MBWorld Fanatic!
 
Joined: Nov 2004
Posts: 1,691
Likes: 143
W221 S600, W220 S55 AMG Kompressor, W124 300E, W140 S320, W210 E3204M W164 ML320 Bluetec
Originally Posted by azontodance
So now with the new module, the trunk pulls up, but doesn't go down with the button or remote. I have to pull it down with my hand.

But it pulls up when open with remote or button
Did you have the dealer install it or do it yourself? It will need to be calibrated using SDS to work properly.
Reply
Old Feb 10, 2020 | 06:28 PM
  #14  
azontodance's Avatar
Thread Starter
Junior Member
 
Joined: May 2019
Posts: 30
Likes: 1
Mercedes Benz S550
Originally Posted by Polar Bear
Did you have the dealer install it or do it yourself? It will need to be calibrated using SDS to work properly.
sotry, it not a brand new. It a used module from ebay
Reply

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:57 PM.

story-0
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-1
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-2
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-3
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-4
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-5
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-6
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-7
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-8
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-9
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE