Can any one explain how can i bleed e-diff system.i have a texa diagnostic tool.
in workshop manuea it says for bleeding e-diff; ''Using the SD3 tester, bleed the hydraulic system, working also on the breather valve (C) located on the lefthand side cover of the gearbox housing'' There must be doing something else for complete bleeding the e-diff system,
in workshop manual only it says for bleeding e-diff; ''Using the SD3 tester, bleed the hydraulic system, working also on the breather valve (C) located on the lefthand side cover of the gearbox housing'' i start the purging with diagnostic tool and purge the valve (C) but i think i must do something more before opening valve (C),can any one give info.
Did you figure this out? What did you have to do prior to opening the breather valve? I have the Launch tool. I am also going through this same process.
I just did this few weeks ago. There are two bleed screws, one under the engine (between it and gearbox) on the hydraulic block that loves to crack. There is also one under the front right engine bay panel, connected to a quick disconnect. I just bought 10 feet of 1/4 inch plastic tubbing, connected it to each bleed screw and ran it back to the F1 tank. I used the launch tool to go through the process. You might need to add a little oil to the tank to make up for the oil that fills the tubes. I ran the sequence twice, and a little bit of air the second go, but not much. close the bleed screws and you're golden. I went for a short drive, then long drive, no issues. I did this same approach to flush the system some time ago, but instead of returning to the tank, I just sent the oil to a bucket and slowly replaced it with fresh oil.
Returning the tube and oil back into reservoir is not recommended ..fwiw Sent from my moto g(7) using Tapatalk
I think no one answered your question .... the solenoid (e-diff) has to be energized by the diag tool .. some tools will do that automatically like the SD3 .. but the launch, the last I remember, doesn't do it for you automatically. You would have to energize it with a controlled power source .. not just 12v... needs to be amp controlled. If the texa has same function as SD3 ... follow this Bleeding the E-DIFF hydraulic system Bleed the E-DIFF hydraulic system using the diagnosis on the SD-3 tester (stand alone), following the sequence below: Connect the SD-3 tester to the diagnostic socket ( L2.12). Turn the key to "ON". Select E-DIFF ECU diagnostics Select BLEED ON diagnostic mode. Start the engine and run at idle speed; Check that the "lock pressure" value in the E-DIFF parameter environment is approximately 16 Bar Bleed by turning the bleed screw (1) located on the LH side gearbox housing flange, above the axle shaft. Remove the protective cap. Connect a transparent plastic pipe to the bleed screw. Immerse the end of the pipe into a container containing F1 gearbox/electronic differential system fluid. Bleed the differential until all the air has been expelled. Switch off the engine then turn the key back to "ON". Enter diagnostic mode and select "BLEED OFF " (to de-energize the solenoid valve); Turn the key to OFF (wait for the multifunction display to power off) Turn off and disconnect the SD-3 tester. Hand tighten the bleed screw and fit the relative protective cap. Check the oil level in the "F1" gearbox system and electronic differential
this is true. I only did it because I had just flushed the entire system and was using brand new tubes. Normally I would use it as a reason to replace all the oil, but no reason to remove fresh oil, especially since I was using clean tubes, AND only had 1/2 quart of oil at the house.
Makes sense ..I guess the only thing would be dirt in the nipple itself .. Just wanted everyone to know .. thanks Sent from my moto g(7) using Tapatalk
Thank you all for such good information. I have the launch tool and plan to try this in the next two weeks. So far I have replaced the E-diff Solenoid and plan to energize it with a 12V source. I was thinking to use a 12V power adapter that puts out 1A max. Another helpful forum member (nessus-gte) pointed me to the menu item to use on the launch tool. I am not sure what happens or what other options we have to choose once I pick this menu item, but I guess I will find out shortly. Image Unavailable, Please Login
That looks like the bleed function for the gear selection actuator not ediff When using the power source use the launch to activate and data logging to see pressures pump .. Sent from my moto g(7) using Tapatalk
I tried to play with the launch tool yesterday to find the menu item to activate pump but couldn't really find it. I will try again sometime this week. I will try to post a screenshot of all the functions in there later today.
I don't have my device, but I recall that there are 2 gearbox menus, 301 and 201 (I think). One is for the F1 system, actuator and clutch control, and one is for the e-differential. Again, I'm going on memory here so someone please correct me if I'm wrong. There is a "bleed" function for the e-differential seperate from the F1 system that runs the pump, and actuates valves in some order to ensure no air is anywhere in the system. Just make sure you're bleeding the correct system.
I don't believe the launch has a ediff bleed function .. I only remember clutch and actuator Sent from my moto g(7) using Tapatalk
Interesting. Am I also wrong about the 201 and 301 gearbox modules in the launch program? Or is 201 for the clutch and 301 for the actuator? Again I'm going off memory here so I could be way off.
the 201 and 301 refer to the ECU version .... the difference would be setting PIS probably is not in the 3.01 selection ...but from what i undersand some functions can be used from 2.01 to 3.01 I am also going off memory ...
As I had promised, I took a few pics of the Launch Tool menus available. Below, I list them as I go through each menu item. I have circled the choices I picked in "yellow": Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Above is page 1 of 2, under the menu item "System Selection". Image Unavailable, Please Login Above is page 2 of 2, under the menu item "System Selection".
Now showing the "Gearbox" Menu items: Image Unavailable, Please Login Image Unavailable, Please Login Above, I picked this since I have a MY2008 (although I haven't checked behind the passenger side cover to verify). Image Unavailable, Please Login Above are the menu items listed.
Below are the menu items listed when I select "Special Functions": Image Unavailable, Please Login Image Unavailable, Please Login Above, are the options listed under "Special Function". These do not appear to be what we need for e-diff bleeding.
Below, I will show what I see when I pick "Actuation Test": Image Unavailable, Please Login Image Unavailable, Please Login Above is page 1 of 4, under the menu item "Actuation Test". Image Unavailable, Please Login Above is page 2 of 4, under the menu item "Actuation Test". Image Unavailable, Please Login Above is page 3 of 4, under the menu item "Actuation Test". Image Unavailable, Please Login Above is page 4 of 4, under the menu item "Actuation Test".
Now this is what happens when the car is in the "ON" position, but not started. I pick the "Pump Management" option. Then when I click on "ON", I get this error message. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Therefore, I do not think this is the correct selection to tun on the pump for E-diff bleeding. However, the function to read the data stream for the pressure works fine: Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login This is how far I got tonight. So far I am not sure if the Launch tool can activate the pump for E-diff bleeding. Then again, there are a lot of functions above that I have not tried or know about. I would rather not just "try" things I may not have knowledge of without input from someone who has used this Launch tool for bleeding the E-diff after an E-diff solenoid change.
The more I thought about this ... With key on the pump will automatically pump as pressure is released so if you have a good regulated power source and the launch to look at pressures you should be good Sent from my moto g(7) using Tapatalk
Under special functions for e bleed Image Unavailable, Please Login Sent from my LM-G850 using Tapatalk
