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

ECM Swap?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 10, 2021 | 09:00 AM
  #1  
poody11's Avatar
Thread Starter
Newbie
 
Joined: Mar 2018
Posts: 14
Likes: 2
07 GL450
Question ECM Swap?

So I'm currently having a big issue. The other day, my truck wouldn't click, crank, or start. When I turned the key to 2nd and 3rd position, I had power (radio, lights, etc.); however, when trying to start it, nothing happened. I had the truck towed to my mechanic and he's saying that the ECM needs to be replaced. I contacted the dealer and they want $1600 for a new one, and it's only available in Tennessee (I'm in Jersey). So I've saw some used ones online for a whole lot cheaper, but with different part #s.

What I'm wondering is could I swap any ECM from the 07 GL450 into mine? I checked the official MB parts store using my VIN and they're only selling the ECMs w/ one particular part #; however, it also mentions that it replaces all other part #s for the 07 GL450. So shouldn't any ECM be allowed to work if you reprogram it? My mechanic says that he can have it programmed for me.

BTW the starter, relays, and battery are fine, so those aren't the problem.

What should I do??

Last edited by poody11; Jun 10, 2021 at 09:04 AM.
Reply
Old Jun 10, 2021 | 12:58 PM
  #2  
Jamaal's Avatar
Newbie
 
Joined: Sep 2020
Posts: 3
Likes: 0
2007 mercedes benz e550
Ecm

Originally Posted by poody11
So I'm currently having a big issue. The other day, my truck wouldn't click, crank, or start. When I turned the key to 2nd and 3rd position, I had power (radio, lights, etc.); however, when trying to start it, nothing happened. I had the truck towed to my mechanic and he's saying that the ECM needs to be replaced. I contacted the dealer and they want $1600 for a new one, and it's only available in Tennessee (I'm in Jersey). So I've saw some used ones online for a whole lot cheaper, but with different part #s.

What I'm wondering is could I swap any ECM from the 07 GL450 into mine? I checked the official MB parts store using my VIN and they're only selling the ECMs w/ one particular part #; however, it also mentions that it replaces all other part #s for the 07 GL450. So shouldn't any ECM be allowed to work if you reprogram it? My mechanic says that he can have it programmed for me.

BTW the starter, relays, and battery are fine, so those aren't the problem.

What should I do??
Hi did you ever fix the problem with ECM? Does the part # matter?
Reply
Old Jun 10, 2021 | 03:13 PM
  #3  
machadosl's Avatar
Member
 
Joined: Apr 2017
Posts: 150
Likes: 30
1999 E240, 2007 GL500, 2004 Suburban Z71, 1997 Ford Escort MK7, 1979 VW Beetle
On 2017 I had a issue like that and I had to replace the EMC, it was caused by the alternator voltage regulator that wasn't working well and sending peaks of 17V. Well, I bought a new ECU without any program and all the settings of the old one was transferred for the new one by a professional, also the key module (EIS/EZS) had to be programmed to work with the new ECU to start the engine.
Reply
Old Jun 10, 2021 | 03:58 PM
  #4  
poody11's Avatar
Thread Starter
Newbie
 
Joined: Mar 2018
Posts: 14
Likes: 2
07 GL450
Originally Posted by Jamaal
Hi did you ever fix the problem with ECM? Does the part # matter?
Nah. Ima just let Pressertech repair mine.
Reply
Old Jun 10, 2021 | 04:00 PM
  #5  
poody11's Avatar
Thread Starter
Newbie
 
Joined: Mar 2018
Posts: 14
Likes: 2
07 GL450
Originally Posted by machadosl
On 2017 I had a issue like that and I had to replace the EMC, it was caused by the alternator voltage regulator that wasn't working well and sending peaks of 17V. Well, I bought a new ECU without any program and all the settings of the old one was transferred for the new one by a professional, also the key module (EIS/EZS) had to be programmed to work with the new ECU to start the engine.
Ah, interesting; so the voltage regulator might've played a role. B/c my mechanic said my ECM burnt out.
Reply
Old Jun 10, 2021 | 08:40 PM
  #6  
machadosl's Avatar
Member
 
Joined: Apr 2017
Posts: 150
Likes: 30
1999 E240, 2007 GL500, 2004 Suburban Z71, 1997 Ford Escort MK7, 1979 VW Beetle
That was exactly what happened with mine ECU.
Reply
Old Jun 27, 2021 | 12:28 PM
  #7  
Elammer20's Avatar
Newbie
 
Joined: Jun 2021
Posts: 3
Likes: 1
Mercedes Benz GL450
Same Issue

I have the exact same problem. I was told it was the starter - forgive me for not being savvy with regards to more serious vehicle issues. Just looking for help.
Reply
Old Jun 28, 2021 | 02:54 AM
  #8  
poody11's Avatar
Thread Starter
Newbie
 
Joined: Mar 2018
Posts: 14
Likes: 2
07 GL450
Originally Posted by Elammer20
I have the exact same problem. I was told it was the starter - forgive me for not being savvy with regards to more serious vehicle issues. Just looking for help.
Could be the starter; but I knew that wasn't the issue this time b/c I changed mine last year.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

 Verdad Gallardo
story-1

8 Oddball Mercedes Ideas That Actually Made it to Production

 Verdad Gallardo
story-2

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

 Verdad Gallardo
story-3

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-4

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo

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 12:11 PM.

story-0
New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

Slideshow: Mercedes-AMG's updated GLE 63 S and GLS 63 bring a new-generation V8, subtle design revisions, and familiar supercar-rivaling performance figures.

By Verdad Gallardo | 2026-06-17 12:52:51


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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