Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-31-2004, 04:47 AM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
97 E320 Is My Transmission Finished?

When I purchased the car the oil in the transmission was milky color (possible water in transmission)

Transmission was flashed and oil filter and oil replaced, there were no any metal shavings or anything strange in it.

The code read by the mb dealer was a speed sensor and adaptation values to the maximum. Dealer suggested that transmission is finished and has to be replaced.

It would shift from 1 to 2-nd very harsh and not shift to 5-th gear and also had a big bang while comming to a comlete stop.
This was in S mode.

I was driving the car for a few months in W mode as it was shifting from 2-nd to 4-th gear very smooth and I do mostly city driving.

J knew that one day I might have to replace the transmission, so I was driving in W mode and hoping it will fix itself.

Recently I started to drive the car and check engine came on and it will not shift to the next gear.
I connected the obdII AND IT CAME UP WITH THE FOLLOWING CODES :
P0715 INPUT/TURBINE SPEED SENSOR CIRCUIT MALFUNCTION
P0720 OUTPUT SPEED SENSOR MALFUNCTION


The car has approx 18K miles right now.

Is my transmission finished or can some parts be replaced to get it going again?

Your help is greatly appreciated
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #2  
Old 05-31-2004, 05:29 AM
Benz300's Avatar
Benz Enthusiast
 
Join Date: Sep 2003
Posts: 803
are you the first owner ? i see your sig. mentions 18K on the car. how did this happen at such low mileage ....
__________________
Whether you think you can or cannot, Either way you're right!. by Henry Ford.
Reply With Quote
  #3  
Old 05-31-2004, 10:43 AM
Moderator
 
Join Date: Mar 2000
Location: Gainesville FL
Posts: 6,844
The water issue is deadly, but the codes indicate that you could very easily have a conductor plate problem. They conductor plate is basically the internal wiring harness of the transmission. It also has the turbine speed sensors built into it.

It is rather cheap and accessible without removing the trans. Unfortunately if the water has delaminated the clutch material which is typical then you are still up for a rebuild.

If that is the case you should deal with it sooner than later if you have a competent local rebuilder. There are a number of improvements you would get by buying a rebuilt from MB: VB, bearings between the internal shafts instead of bushings, but the units we have rebuilt have had no problem if the bushings were intact and were less than half of MB price. If you take the thing to meltdown you won't have a choice.
__________________
Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician
Reply With Quote
  #4  
Old 05-31-2004, 03:31 PM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
BENZ 300 - I belive I am the second owner

STEVE - I hope the clutches are ok as there was no dirt or any materials on the bottom of the oil pan when dealer replaced the oil and oil filter.

I am planing to change the conductor plate, what should I know before attempting this procedure.?

Thank you
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #5  
Old 05-31-2004, 06:41 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
I would not drive the car until you find the water contamination; the most likely cause is a bad radiator. Adaptation values to the maximum means the clutch pack are worn. You may need a rebuilt sooner rather than later. If you are going to change the conductor plate also buy the protective covers for the solenoids. To remove the cover you have to remove the solenoids, mark them so you will know were they go. Change the o-rings on them, also change the control valve pressure spring in the valve body # 140 993 58 01.

Lock up solenoid Y3\6y6 A140 277 00 35
2-3 shift solenoid Y3\6y5 A140 277 01 35
1-2\4-5 shift solenoid Y3\6y3 A140 277 01 35
3-4 shift solenoid Y3\3y4 A140 277 01 35
Reply With Quote
  #6  
Old 05-31-2004, 10:09 PM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
Great info

I removed the valve body, everything looks super clean, no contamination of any kind.

Where does the control valve pressure spring in the valve body # 140 993 58 01 go in and how do I replace it?
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #7  
Old 05-31-2004, 10:39 PM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
Great info

I removed the valve body, everything looks super clean, no contamination of any kind.

Where does the control valve pressure spring in the valve body # 140 993 58 01 go in and how do I replace it?

Is it possible that the 1-2\4-5 shift solenoid is bad as the tranny did not want to shift to 5-th gear and very harsh from first to 2-nd.?

How can I identify the solenoids as to which one is for which gear sgifting ?

How can I check the solenoids if they are good or bad ?

How can I check the cluthes withot taking the transmission apart or it is impossible?

Is there anything alse that I should check or replace?

I am attaching the picture of my valve body for you to see.

Thank you very much
Attached Thumbnails
97 E320 Is My Transmission Finished?-valve-body1.jpg  
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #8  
Old 05-31-2004, 11:50 PM
Registered User
 
Join Date: Jan 2002
Location: NY
Posts: 500
This site has 722.6 description:
http://www.carsoft.ru/avtorepair/akp.html
The site is in Russian, but scroll down and Mercedes 722.6 tranny manual is there in English. It looks like it was taken from the MB training CD.
Reg. Mike
Reply With Quote
  #9  
Old 06-01-2004, 12:21 AM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
myarmar

Absolutely great site, alot of info there, I am reading now all possible info.

I will probably have more questions later.

Thank you
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #10  
Old 06-01-2004, 01:17 AM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
How can I test the solenoids if they are good or bad, and if bad can they be ordered from the dealer?
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #11  
Old 06-01-2004, 03:51 AM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
Update

I removed all solenoids and they all look good, but please can someone confirm to me if they are good.

I measured the resistance of them and it is as follows:

Y3/6 y6 PMW solenoid valve(torque converter lock-up : 2.5 OHM

Y3/6y5 2-3 solenoid valve : 4.1 OHM

Y3/6y3 1-2/4-5 solenoid valve : 4.1 OHM

Y3/6y4 3-4 solenoid valve : 4.1 OHM

Y3/6y1 modutating pressure regulating solenoid valve : 5.1 OHM


Y3/6y2 shift pressure regulating solenoid valve : 5.1 OHM

Do I need to replace any of them or are they all good to transfer to the new conductor plate?

Thank you
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #12  
Old 06-01-2004, 08:12 AM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
The readings are right. Turn the valve body 180degs, the 4 solenoid should face you, carefully remove the bolts from the plate on your left side, the spring is in the 3rd hole from the left. Post a picture. I am off the work.
Reply With Quote
  #13  
Old 06-01-2004, 10:55 AM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
Hi

I am attaching a picture of the valve body.

I talk to the parts department and they tell me that valve body is available as a unit and not seperate parts are available - springs etc, not even o-rings.

I ordered the conductor plate , adapter plug connector and 2 filters that go under 2 pressure solenoids.

Thank you for your help
Attached Thumbnails
97 E320 Is My Transmission Finished?-body-only.jpg  
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
  #14  
Old 06-01-2004, 09:54 PM
C32AMG's Avatar
Registered User
 
Join Date: Mar 2004
Location: new york/orange county
Posts: 639
The part numbers I gave you are the right ones, I call my local MB dealer, the spring is available for $20, talk about inflation. I buy them from sonnax thru my distributor. At lest check the spring, make sure it is not broken. Push the VB back to expose the plates.
Reply With Quote
  #15  
Old 06-02-2004, 01:55 AM
Registered User
 
Join Date: Nov 2002
Location: Austin, Texas
Posts: 179
I can check the spring but where is it exactley?
__________________
2008 ML320 CDI
2007 GL320 CDI
2005 Audi A6 (sold)
2001 E320 (sold)
2004 lexus RX330 (sold)
2004 Honda CRV (sold)
93 190E 2.6 (sold)
97 E320 (sold)
2000 Honda CRV (sold)
91 350SD (sold)
90 E300 with amg body kit (sold)
83 300sd aqua marine (sold)
81 300sd dark blue (sold)
81 300sd gold (sold)
81 300sd brown (sold)
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 05:42 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page