M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Electric seats not working

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Oct 10, 2020 | 08:25 AM
  #26  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
Hi

I have a ML280 W164, which had some water damage to the rear SAM, which has now been repaired. Both front electric seats are not working before and after repair. I have checked the fuses and Relay K for voltage with IGN off, ON and with the vehicle running, but I have nothing reading. Can you advise of the next step to resolve this?

Many Thanks
Please UPDATE YOUR PROFILE to include the year and where you live.



Reply
Old Oct 10, 2020 | 08:48 AM
  #27  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
All updated.
Reply
Old Oct 10, 2020 | 10:10 AM
  #28  
anavabi's Avatar
Senior Member
5 Year Member
 
Joined: Aug 2017
Posts: 396
Likes: 11
From: Ontario, Canada
2006 ML500, 2008 ML350
Originally Posted by Maj. Dundee
When you swapped the two modules, they are coded to that door. That is why they are both not working. Swap them back
I did swap them back then. It was when I swapped back that the other seat, the driver's side, also stopped working. So the fore/aft function is not working on both seats now with their original modules on both seats, when the fore/aft button is pushed there is only a buzzing noise but no movement. All other moves function well; like the leaning of the back, up and down of the seats, and even the headrests function well. It's only the fore/aft function that is acting up.
Thanks,

Reply
Old Oct 10, 2020 | 11:43 AM
  #29  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
Hi

I have a ML280 W164, which had some water damage to the rear SAM, which has now been repaired. Both front electric seats are not working before and after repair. I have checked the fuses and Relay K for voltage with IGN off, ON and with the vehicle running, but I have nothing reading. Can you advise of the next step to resolve this?

Many Thanks
How did you fix the rear SAM problem?

Did you replace both tail lamp seals?


Reply
Old Oct 10, 2020 | 11:55 AM
  #30  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
When a towbar had been fitted a bolt had been left out where it was near the SAM. A recent very heavy downpour caused water into the area. A bolt has been fitted and no further leaks.
Reply
Old Oct 10, 2020 | 02:14 PM
  #31  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
When a towbar had been fitted a bolt had been left out where it was near the SAM. A recent very heavy downpour caused water into the area. A bolt has been fitted and no further leaks.

Did water water get into the spare tire area?
Reply
Old Oct 10, 2020 | 02:53 PM
  #32  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by anavabi
I did swap them back then. It was when I swapped back that the other seat, the driver's side, also stopped working. So the fore/aft function is not working on both seats now with their original modules on both seats, when the fore/aft button is pushed there is only a buzzing noise but no movement. All other moves function well; like the leaning of the back, up and down of the seats, and even the headrests function well. It's only the fore/aft function that is acting up.
Thanks,
What is the location of these modules?

Last edited by Maj. Dundee; Oct 10, 2020 at 03:56 PM.
Reply
Old Oct 10, 2020 | 02:56 PM
  #33  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
No, only the area where the SAM is located.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

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

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

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

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
Old Oct 10, 2020 | 03:58 PM
  #34  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
No, only the area where the SAM is located.
Did you take the covers off of the SAM and looked at the electrical board for corrosion?


Last edited by Maj. Dundee; Oct 10, 2020 at 04:02 PM.
Reply
Old Oct 10, 2020 | 04:17 PM
  #35  
anavabi's Avatar
Senior Member
5 Year Member
 
Joined: Aug 2017
Posts: 396
Likes: 11
From: Ontario, Canada
2006 ML500, 2008 ML350
Originally Posted by Maj. Dundee
What is the location of these modules?
The module. in the front of the seat and closest to the door
Just noticed that there's only module under the seat.

Last edited by anavabi; Oct 11, 2020 at 01:01 PM.
Reply
Old Oct 10, 2020 | 06:51 PM
  #36  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
The SAM had water damage and I removed the unit and opened to check for any damage. I cleaned the unit myself, but this did not resolve the electric seat problem, so I had it checked by a local mechanic who confirmed it was most likely the SAM. I then sent it off to an Auto electrical repair company in the UK who have repaired and tested the module from the water damage and provided a warranty.
Reply
Old Oct 11, 2020 | 01:23 AM
  #37  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
The SAM had water damage and I removed the unit and opened to check for any damage. I cleaned the unit myself, but this did not resolve the electric seat problem, so I had it checked by a local mechanic who confirmed it was most likely the SAM. I then sent it off to an Auto electrical repair company in the UK who have repaired and tested the module from the water damage and provided a warranty.
Did you replace the tail light seals? If you didn't, then water entry will occur again.

Do you have a scanner to check for codes in all modules?



Reply
Old Oct 11, 2020 | 09:51 AM
  #38  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
Hi

The gasket's do not need replacing, as they have been checked and the leak was confirmed from a bolt hole left open next to the SAM module. I do not have any voltage to the Relay (K) or the fuses 27 & 28 for the electric seats, with IGN off, on or when the car is running. Is there another Relay elsewhere?

Regards
Reply
Old Oct 11, 2020 | 11:07 AM
  #39  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
With the eng. running in PARK or driver's door open with key out of ign., check fuse #66 in Load Comp. Fuse Box.



Reply
Old Oct 11, 2020 | 01:03 PM
  #40  
anavabi's Avatar
Senior Member
5 Year Member
 
Joined: Aug 2017
Posts: 396
Likes: 11
From: Ontario, Canada
2006 ML500, 2008 ML350
Originally Posted by Maj. Dundee
With the eng. running in PARK or driver's door open with key out of ign., check fuse #66 in Load Comp. Fuse Box.


Major,
Not sure if you're addressing this message to me. If it is to me, there's no fuse 66 on my ML500. Thanks

Reply
Old Oct 11, 2020 | 01:46 PM
  #41  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
Hi

I don't have a fuse in 66, here is a photo of my fuse box.


Kind Regards
Reply
Old Oct 12, 2020 | 05:36 AM
  #42  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
You probably do not have that fuse because it only applies to U.S. wiring diagrams.

Things would be much easier if you had a scanner to read codes.

Please post your full vin#.

Last edited by Maj. Dundee; Oct 12, 2020 at 05:43 AM.
Reply
Old Oct 12, 2020 | 05:45 AM
  #43  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by anavabi
Major,
Not sure if you're addressing this message to me. If it is to me, there's no fuse 66 on my ML500. Thanks
No it wasn't but you should try it also.

Post your full vin#.
Reply
Old Oct 12, 2020 | 06:56 AM
  #44  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
Hi

My Vin is:WD01641202A416114

Regards


Reply
Old Oct 12, 2020 | 08:22 AM
  #45  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
Hi

My Vin is:WD01641202A416114

Regards
Please check the vin# again.
Reply
Old Oct 12, 2020 | 09:50 AM
  #46  
anavabi's Avatar
Senior Member
5 Year Member
 
Joined: Aug 2017
Posts: 396
Likes: 11
From: Ontario, Canada
2006 ML500, 2008 ML350
Originally Posted by Maj. Dundee
No it wasn't but you should try it also.

Post your full vin#.
VIN: 4JGBB75E36A067142
Fuse 66 doesn't exist on my car. Please see attached image for the fuses.


Reply
Old Oct 12, 2020 | 11:10 AM
  #47  
ML280's Avatar
Junior Member
 
Joined: Oct 2020
Posts: 17
Likes: 0
From: Spain
2008 ML 280
Hi

Sorry WDC and not WDO

Regards
Reply
Old Oct 12, 2020 | 11:36 AM
  #48  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Posted in error.

Last edited by Maj. Dundee; Oct 12, 2020 at 11:43 AM.
Reply
Old Oct 12, 2020 | 12:22 PM
  #49  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by ML280
Hi

Sorry WDC and not WDO

Regards
According to your vin # you have a 2008 ML350. Confused.
Attached Files
File Type: pdf
Java Printing 2.pdf (47.3 KB, 321 views)
Reply
Old Oct 12, 2020 | 12:26 PM
  #50  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Originally Posted by anavabi
I sent the wrong DATA. Here is the correct one

Give me some time to look through the wiring diagrams.
Attached Files
File Type: pdf
Java Printing.pdf (49.9 KB, 313 views)

Last edited by Maj. Dundee; Oct 12, 2020 at 12:49 PM.
Reply


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


All times are GMT -4. The time now is 12:47 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE