Parts Catalog Accessories Catalog Tech Info Tech Forums
 
  Search our site:    
 Cart  | Project List | Order Status | Help    


Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-27-2012, 07:16 PM
TheDon's Avatar
Open Discussion Moderator
 
Join Date: Oct 2005
Location: Windermere,FL
Posts: 12,545
'97 S320 shifting issue

I stopped by a friends to check out her S320 since it is having some issues.

I plugged my code reader into the OBDII port and saw the following codes

P0715 - input/turbine speed sensor
P0720 - output shaft sensor

Both seem to be related to the transmission.

The car will not shift out of 2nd gear. Tried everything, started in L, S, etc etc.

Attempted to check the fluid level but there was/is no dipstick, just a black cap on top of the dip stick tube (guessing this car doesnt come with one?)

correction for model year, it's a 97

Owner has no idea when the last time the transmission was serviced.

ideas? Car has around 175k on it.
__________________
|1983 300D| OM617 239k Miles|Red|"Passion"|
|1978 240D| OM616 233k Miles|Topaz Brown |"Uttini"l|
|1987 300D| OM603 225k Miles|Anthracite Grey|"Pepper"|

Parts For Sale!

Last edited by TheDon; 03-28-2012 at 01:14 PM.
Reply With Quote
  #2  
Old 03-27-2012, 07:19 PM
Gilly's Avatar
Registered User
 
Join Date: Mar 2001
Location: Evansville WI
Posts: 9,608
Trying to remember, but from the description it sounds like this is an early 722.6 transmission. By the codes you have, I am relatively sure that the transmission needs a new conductor plate. Outside chance that the stator ring has come loose. If the trans isn't making any sort of excess noise, I would stick with the conductor plate diagnosis.
Gilly
Reply With Quote
  #3  
Old 03-27-2012, 07:25 PM
TheDon's Avatar
Open Discussion Moderator
 
Join Date: Oct 2005
Location: Windermere,FL
Posts: 12,545
I just did some digging and found that info.

Is the P0720 code something that usually comes with the 0715? If its just one sensor then I might be able to do the repair myself. But I do not have an SDS to clear the codes.

Also, what about the missing dipstick?
__________________
|1983 300D| OM617 239k Miles|Red|"Passion"|
|1978 240D| OM616 233k Miles|Topaz Brown |"Uttini"l|
|1987 300D| OM603 225k Miles|Anthracite Grey|"Pepper"|

Parts For Sale!
Reply With Quote
  #4  
Old 03-28-2012, 04:52 AM
Gilly's Avatar
Registered User
 
Join Date: Mar 2001
Location: Evansville WI
Posts: 9,608
Sorry, this is all really common knowledge and forgot to mention it, you should try a search on the 722.6 trans, you should even be able to find some DIY info on the conductor plate and so forth.
Few things I can cover quickly, yes there is no dipstick, just the cap. The stick is a shop tool. It is critical on fluid level and the Germans doesn't want "the public" fooling with it. If there is no leak, there is no need to worry i guess, some truth to that. The temp of the fluid has to be closely monitored, the sds has a function of using a temp sensor in the trans to monitor the temp, then using the shop tool to measure the level.

The trans is said to be "filled for life", but at this point yeah you probably could do the fluid change. Luckily this one is early enough that you can drain the torque converter like the earlier trasmissions. OH you HAVE to use the MB fluid, it is EXpensive stuff.
Reply With Quote
  #5  
Old 03-28-2012, 04:55 AM
Gilly's Avatar
Registered User
 
Join Date: Mar 2001
Location: Evansville WI
Posts: 9,608
On this thread, check out the post I made, post #8:
1999 S500 with 722.6 Automatic Transmission Filled for life?
Reply With Quote
  #6  
Old 03-28-2012, 05:28 AM
oldsinner111's Avatar
nearing 60,life is over f
 
Join Date: Nov 2008
Location: Elizabethton TN
Posts: 3,559
I bought me a dipstick on Ebay.DE
__________________
1983 300sd and 1999 s320 with mobil one atf both cars
.
Reply With Quote
  #7  
Old 03-28-2012, 08:05 AM
Registered User
 
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
A 1996 S320 would be the last year of the 722.5, but that sounds strange that it has no dipstick. Are you sure it's a 96?
Reply With Quote
  #8  
Old 03-28-2012, 09:06 AM
TheDon's Avatar
Open Discussion Moderator
 
Join Date: Oct 2005
Location: Windermere,FL
Posts: 12,545
Quote:
Originally Posted by Gilly View Post
Sorry, this is all really common knowledge and forgot to mention it, you should try a search on the 722.6 trans, you should even be able to find some DIY info on the conductor plate and so forth.
Few things I can cover quickly, yes there is no dipstick, just the cap. The stick is a shop tool. It is critical on fluid level and the Germans doesn't want "the public" fooling with it. If there is no leak, there is no need to worry i guess, some truth to that. The temp of the fluid has to be closely monitored, the sds has a function of using a temp sensor in the trans to monitor the temp, then using the shop tool to measure the level.

The trans is said to be "filled for life", but at this point yeah you probably could do the fluid change. Luckily this one is early enough that you can drain the torque converter like the earlier trasmissions. OH you HAVE to use the MB fluid, it is EXpensive stuff.
The MB stuff.. awesome. Considering I want to put fresh fluid in after putting the new conductor plate in and sticking some magnets inthe pan and then flush again with new fluid and a new filter.

awesome. What does that stuff retail for per quart.
__________________
|1983 300D| OM617 239k Miles|Red|"Passion"|
|1978 240D| OM616 233k Miles|Topaz Brown |"Uttini"l|
|1987 300D| OM603 225k Miles|Anthracite Grey|"Pepper"|

Parts For Sale!
Reply With Quote
  #9  
Old 03-28-2012, 09:57 AM
oldsinner111's Avatar
nearing 60,life is over f
 
Join Date: Nov 2008
Location: Elizabethton TN
Posts: 3,559
I use mobil one ATF
__________________
1983 300sd and 1999 s320 with mobil one atf both cars
.
Reply With Quote
  #10  
Old 03-28-2012, 10:40 AM
Registered User
 
Join Date: Aug 2003
Location: Phoenix
Posts: 3,726
You need to find out what transmission it is - a 96 722.5 would be Dexron III.
Reply With Quote
  #11  
Old 03-28-2012, 01:12 PM
TheDon's Avatar
Open Discussion Moderator
 
Join Date: Oct 2005
Location: Windermere,FL
Posts: 12,545
My bad, it's a '97.

Called my dealership parts contact and I need the following

10 liters of fluid @ $20 ea
Conductor plate @ $213 for MBZ official
1 new plug @ $6
1 filter @ forgot to ask
1 service dipstick @ $54

1 trip to dealership to clear codes @ no idea

So far looking to be around $600 with taxes and shipping plus tow truck ride and dealership cost.

Sound about right?
__________________
|1983 300D| OM617 239k Miles|Red|"Passion"|
|1978 240D| OM616 233k Miles|Topaz Brown |"Uttini"l|
|1987 300D| OM603 225k Miles|Anthracite Grey|"Pepper"|

Parts For Sale!
Reply With Quote
  #12  
Old 03-28-2012, 04:30 PM
Gilly's Avatar
Registered User
 
Join Date: Mar 2001
Location: Evansville WI
Posts: 9,608
The new conductor plate will seem different, there will be plastic caps (2) over where the electric valves are (that you will need to swap to the new conductor plate), these are not there just for shipping, they stay there, it was a later change. I am sure the new plate will come with them, if not I would hold on and make sure you get those. Also you just need one magnet. I should have a part # for the magnet, again this was a later change. You will also need o-rings for the plug (electrical plug), and seals for the drain pan plug and torque converter plug. I wouldn't bother flushing it, just dump it, do your work, drain the converter, and refill.

If the dealer is close you might want them to check the fluid level which would save you from buying the dipstick.

The trans might shift out of 2nd once the plate is replaced, not sure if it will stay in limp home or not.
Reply With Quote
  #13  
Old 03-28-2012, 04:34 PM
TheDon's Avatar
Open Discussion Moderator
 
Join Date: Oct 2005
Location: Windermere,FL
Posts: 12,545
Alright, let me know about those part numbers.

Dealer is not close at all.
__________________
|1983 300D| OM617 239k Miles|Red|"Passion"|
|1978 240D| OM616 233k Miles|Topaz Brown |"Uttini"l|
|1987 300D| OM603 225k Miles|Anthracite Grey|"Pepper"|

Parts For Sale!
Reply With Quote
  #14  
Old 03-28-2012, 05:10 PM
Registered User
 
Join Date: Jul 2004
Location: NC
Posts: 1,138
Quote:
Originally Posted by TheDon View Post
My bad, it's a '97.

Called my dealership parts contact and I need the following

10 liters of fluid @ $20 ea
Conductor plate @ $213 for MBZ official
1 new plug @ $6
1 filter @ forgot to ask
1 service dipstick @ $54

1 trip to dealership to clear codes @ no idea

So far looking to be around $600 with taxes and shipping plus tow truck ride and dealership cost.

Sound about right?
Friggin bargain for someone who ran a 722.6 175k while being oblivious to the risks of non-maintenance! To back up and look at it from 1000ft, a conductor plate (and a TCM for that matter) are pretty typical repairs during that time period, even if the fluid and filters were done every 30k!
__________________
former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL
Reply With Quote
  #15  
Old 03-28-2012, 05:16 PM
TheDon's Avatar
Open Discussion Moderator
 
Join Date: Oct 2005
Location: Windermere,FL
Posts: 12,545
bargain if you have the money on hand to pay for the repair.


But anyways
__________________
|1983 300D| OM617 239k Miles|Red|"Passion"|
|1978 240D| OM616 233k Miles|Topaz Brown |"Uttini"l|
|1987 300D| OM603 225k Miles|Anthracite Grey|"Pepper"|

Parts For Sale!
Reply With Quote
Old 03-28-2012, 05:16 PM
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 02:00 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page