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 09-25-2008, 11:27 PM
88Black560SL
 
Join Date: Oct 2004
Location: NC
Posts: 3,020
Re-Filling the 722.6 Transmission

Gentelmen

I understand the 722.6 trans is very sensitive to fluid level.

Can any one tell me what that means. I believe Im overfilled and the trans neutrals out after getting up to about 20 MPH. This is in a 1996 SL600

How do I use the special dipstick tool. I received no directions with mine. The picture is as far down as it will go. Does that look right. If I put it in as far down as it will go as shown in the picture and the fluid level is above the high temp highest mark after limping it around the block one time.

This transmission was completely drained including the TC. There are approximately 9.25 new qts of fluid in it and it appears to be about 3/4" over filled. Might this explain a neutral out condition.

Attached Thumbnails
Re-Filling the 722.6 Transmission-dscf0004.jpg  
__________________
To see my 129 parts for sale visit:
http://stores.ebay.com/The-Mercedes-SL-Store
John Roncallo

Last edited by Roncallo; 09-26-2008 at 07:23 AM.
Reply With Quote
  #2  
Old 09-26-2008, 08:37 AM
RichardM98's Avatar
Registered User
 
Join Date: Oct 2007
Location: SoCal
Posts: 651
Overfilling can damage your transmission. I would not drive the car until draining some of the fluid.

There are two ranges on the tip of the tool. Each has a min and max mark. The lower one (farthest from handle) is the level at 25C or ambient temp. The upper one is the correct level at 80C (operating temp of trans NOT the 80C coolant temp gauge on dash).

To measure insert the tool until you feel the tip reach the bottom of the sump. Don't push so hard that you flex the plastic tip. There may be a slight restriction as you insert the tool before reaching the sump.There should be about 6-8" of the tool sticking out of the tube when properly inserted.

ASAP drain some fluid out until the level is in the 25C range (cold transmission). Drive the car for about 20-30 min preferrably on uneven terrain to ensure the transmission has reached full operating temp. I like to run it thru the gears manually but I don't think that is necessary especially since you've already driven the car.

Park the car on a level spot. Wait a couple of minutes for any draining. Check level. Add new fluid (a small amount at a time) as necessary to reach the upper range. Good luck.
Reply With Quote
  #3  
Old 09-26-2008, 12:26 PM
88Black560SL
 
Join Date: Oct 2004
Location: NC
Posts: 3,020
Quote:
Originally Posted by RichardM98 View Post
Overfilling can damage your transmission. I would not drive the car until draining some of the fluid.

There are two ranges on the tip of the tool. Each has a min and max mark. The lower one (farthest from handle) is the level at 25C or ambient temp. The upper one is the correct level at 80C (operating temp of trans NOT the 80C coolant temp gauge on dash).

To measure insert the tool until you feel the tip reach the bottom of the sump. Don't push so hard that you flex the plastic tip. There may be a slight restriction as you insert the tool before reaching the sump.There should be about 6-8" of the tool sticking out of the tube when properly inserted.

ASAP drain some fluid out until the level is in the 25C range (cold transmission). Drive the car for about 20-30 min preferrably on uneven terrain to ensure the transmission has reached full operating temp. I like to run it thru the gears manually but I don't think that is necessary especially since you've already driven the car.

Park the car on a level spot. Wait a couple of minutes for any draining. Check level. Add new fluid (a small amount at a time) as necessary to reach the upper range. Good luck.
Thank you that is kind of what I figured but when I first got the tool I was expecting the red handle to seat in the tube. So where I have it in the picture is about where the tip just touches the bottom of the pan. Draining right now.
__________________
To see my 129 parts for sale visit:
http://stores.ebay.com/The-Mercedes-SL-Store
John Roncallo
Reply With Quote
  #4  
Old 09-26-2008, 02:24 PM
Registered User
 
Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
Posts: 4,874
The "tool" is designed to fit multiple engine and chassis configurations. You only use as much stick as is needed to feel its tip hit the bottom of the pan.

Helps to mark that point once you find it so you know when you are getting close.

Engine running of course.

The fill for your trans should be in your OM. They do vary. IIRC, my diesel with the 722.608 took 7.2L when I refilled it. This was ~.2 L more than I drained.

__________________
Terry Allison
N. Calif. & S. of Key West

09' E320 Bluetec 77k
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 12:46 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