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

Auto Transmission Problem

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Apr 20, 2006 | 12:55 PM
  #1  
rednsx3's Avatar
Thread Starter
Almost a Member!
 
Joined: Jul 2005
Posts: 28
Likes: 0
Auto Transmission Problem

The auto transmission on my 2002 August ML 270 Cdi "hangs" when I accelerate hard in the 1st or 2nd gear and release the accelerator before the gear can change. Then if I switch off the engine and start again the gear shifting is back to normal.

I got the oil and filter changed but the problem persists.

What could be the cause? How can I trouble shoot the problem?
Reply
Old Apr 20, 2006 | 01:31 PM
  #2  
sosh's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 4,260
Likes: 6
From: Philadelphia area
2010 ML550, 2010 E350 4M, 1966 Corvette Convt C2
Originally Posted by rednsx3
The auto transmission on my 2002 August ML 270 Cdi "hangs" when I accelerate hard in the 1st or 2nd gear and release the accelerator before the gear can change. Then if I switch off the engine and start again the gear shifting is back to normal.

I got the oil and filter changed but the problem persists.

What could be the cause? How can I trouble shoot the problem?
Its most likely caused by the non MB chip that you installed. Put it back to standard and it will most likely go away unless you have done some permanent damage.
Reply
Old Apr 20, 2006 | 01:44 PM
  #3  
Kar don's Avatar
MBWorld Fanatic!
 
Joined: Nov 2001
Posts: 5,640
Likes: 11
From: GMT -8 hours
Mercedes-Benz
i doubt it, is this right when u first start the car? Usually it will hang if u release the accelerator because the computer keeps it in 1st cuz it thinks u are about to get right back on the gas.
Reply
Old Apr 20, 2006 | 05:01 PM
  #4  
cyeung65's Avatar
Senior Member
 
Joined: May 2003
Posts: 292
Likes: 0
From: Houston, TX
Q & R
This hang up in 1st gear sounds a lot like the cold condition on the gas model. When the engine is cold, it holds 2nd gear for a while. Perhaps the diesel is more sensitive to cold conditions and there is a sensor problem? Esp since you say if you shut down and restart, all works well. Does your temp gauge work right?
Reply
Old Apr 21, 2006 | 12:14 PM
  #5  
rednsx3's Avatar
Thread Starter
Almost a Member!
 
Joined: Jul 2005
Posts: 28
Likes: 0
Auto Transmission Problem

Originally Posted by sosh
Its most likely caused by the non MB chip that you installed. Put it back to standard and it will most likely go away unless you have done some permanent damage.

I think you are right -- I never had this problem with the original chip. Will try it with the older chip.
Reply
Old Apr 21, 2006 | 12:16 PM
  #6  
rednsx3's Avatar
Thread Starter
Almost a Member!
 
Joined: Jul 2005
Posts: 28
Likes: 0
Originally Posted by cyeung65
This hang up in 1st gear sounds a lot like the cold condition on the gas model. When the engine is cold, it holds 2nd gear for a while. Perhaps the diesel is more sensitive to cold conditions and there is a sensor problem? Esp since you say if you shut down and restart, all works well. Does your temp gauge work right?

Im located in New Delhi , India and the temp here is quite warm - 35 degrees - doubt if this is a temp problem.
Reply
Old Apr 21, 2006 | 12:18 PM
  #7  
rednsx3's Avatar
Thread Starter
Almost a Member!
 
Joined: Jul 2005
Posts: 28
Likes: 0
Originally Posted by Kar don
i doubt it, is this right when u first start the car? Usually it will hang if u release the accelerator because the computer keeps it in 1st cuz it thinks u are about to get right back on the gas.

Probably is the chip -- I only had this problem after I changed the it. Will re-install the original and see.
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 06:10 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