VW Automatic Register

Technical forum => Technical => Topic started by: Airhead on 20 April 2010, 23:18

Title: Torque Converter ATF removal
Post by: Airhead on 20 April 2010, 23:18
Hi

I managed to get hold of a replacement TC for my transmission, my original one went bad causing a big problem  :(
The replacement has been stored for a while, there is some fluid still inside which doesnt look clean, how can I completely remove it and any
contaminants that may be present? I have tried tipping it upside down but cant seem to get it all out, is there any way of flushing out?

Airhead
Title: Re: Torque Converter ATF removal
Post by: singlecab61 on 21 April 2010, 01:16
Hello there!

Torque Converters are nearly impossible to drain. VWAR Home page has the needed information to flush the ATF (Home page=> Technical=> Converter Oil).

Were it me......FIRST=> Replace the Torque Converter. SECOND=> Run the engine and top off the system. THIRD=> Perform the following steps to completely flush the system. 

Here is how you do it:

-Detach hose at oil tank outlet and drain oil into container
-Reattach house.
-Detach return hose at oil filler neck of oil tank and route into drain container.
-Start engine and run it at fast idle speed. While torque converter is being emptied, pour approximately 5 liters of ATF into the oil tank.
-When oil level in drain container has reaches 5 liters turn engine off and reattach hose.
-Recheck ATF level.

This is probably the best way to flush the system.

Good luck!
     -Evan.
Title: Re: Torque Converter ATF removal
Post by: Bookwus on 21 April 2010, 03:34
Hiya Air,

Yeah, what Evan said................

Seems to me that I was reading not too long ago that it is impossible to remove all the water from an unmounted tire (think torque converter here) by purely physical/handling means.  With that in mind, a system flush does seem the way to go. 
Title: Re: Torque Converter ATF removal
Post by: volkenstein on 23 April 2010, 11:42
X3.
    The siphoning method described in the manual is a bit slow. I do suspect you could improve it but you're halfway through a Flush Procedure just trying to fill the ATF system anyway to lubricate a "dry" converter.

Regards
Volkenstein