M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Ml270cdi B1040-001 error

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 25, 2018 | 10:18 PM
  #1  
Ken Wong's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 4
Likes: 0
Ml270cdi 2000
Ml270cdi B1040-001 error

hi everyone
I am new in here and really help some help.
I had a Ml270 2000 in Australia.
2 months ago, the turbo stop working but the car drive perfectly fine. After I connect to a scanner to it and i find out that the MAF sensor is faulty, once I replace that, the car back to normal with the turbo working again. But there is still 1 error code B1040-001 AAM, it said something about the ETS CAN bus.
since the car working fine, so I leave it as it is.

but not very long after that, the turbo stop working again. this time the scanner said there are turbo leak and the Flap motor on the intake manifold is faulty. So I replace the whole intake manifold and the motor, and now the car working fine again. but the B1040-001 is still there.

Can anyone help me about this B1040? thank you very much.
Reply
Old Apr 26, 2018 | 07:44 AM
  #2  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500

Ken, code B1040 relates to a CAN problem between one or more modules listed in the attachment.

On the surface it should not have anything to do with the turbo but we have no diesel wiring diagrams to check.
Reply
Old Apr 26, 2018 | 09:03 AM
  #3  
Ken Wong's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 4
Likes: 0
Ml270cdi 2000
Thanks Maj,

I think this code have nothing to do with the turbo too.
Because the car is running perfectly fine and i cannot find anything wrong with the car. I try to clear the code but it come back on straight away.
Very strange.
Reply
Old Apr 26, 2018 | 11:12 AM
  #4  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Check for codes in all other modules.
Reply
Old Apr 26, 2018 | 11:37 AM
  #5  
Ken Wong's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 4
Likes: 0
Ml270cdi 2000
I already did a full scan, B1040-001 is the only code it return.
Reply
Old Apr 26, 2018 | 12:20 PM
  #6  
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 Ken Wong
I already did a full scan, B1040-001 is the only code it return.
And you are saying that when this code appears, the turbo stops working?
Reply
Old Apr 27, 2018 | 11:55 PM
  #7  
Ken Wong's Avatar
Thread Starter
Newbie
 
Joined: Apr 2018
Posts: 4
Likes: 0
Ml270cdi 2000
hi Maj,
I cannot find anything wrong with the car, the turbo and whole car is running perfectly fine even with this code on.
Reply
Old Apr 28, 2018 | 03:53 AM
  #8  
Maj. Dundee's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
Then it is what they call a "ghost code" with your code reader. Your system must be scanned with a M/B scanner.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

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

 Verdad Gallardo
story-1

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

 Verdad Gallardo
story-2

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

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

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

 Verdad Gallardo
story-8

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

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 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 05:58 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE