Never heard of this type of Trans Oil change

[007_e350]

Stole it from bimmerforums.com (http://www.bimmerforums.com/forum/sh...onverter-fluid) - Is this correct ? Would it hurt the tranny if 3.5 L came out and the engine still running ?

----- here's the procedure in the link ------

Hi everyone, I read too many posts about changing complete fluid from transmission and torque converter. Every one suggest to keep repeating filling the pan and drain for couple of time. I think it is just wast of fluid and your time. What I do is very simple and perfect way to do it.

* VEHICLE MUST BE STABLE AND 100% LEVELED ON THE SURFACE, THIS IS VERY IMPORTANT TO FILL THE CORRECT LEVEL OF FLUID INTO TRANSMISSION. IF NOT A LEVEL SURFACE, YOU MAY END UP TO LEES OR TOO MUCH FLUID. MAKE SURE YOU CONSIDER ALL SAFETY MEASURES.


1. Drain transmission old fluid by opening drain socket,
2. Drop pan, change the filter and install new gasket,
3. Put the pan back and make sure it is tight,
4. Fill about 4-5 liter fluid from filling hole, it may start dripping but do not worry just keep filling at least 4 L fluide,
5. open the transmission cooler return pipe end which is connected to the transmission and put it in a container which show the quantity by liter,
6, Ask some one to start the engine and you keep eye on the old and dark fluid which exitS from the pipe, this dark color fluid is the old fluid from torque converter been pushed by new fluid,
7. as soon as you see 3.5 liter old fluid in the container ask your assistant to turn off the engine, now connect the return pipe back into the transmission,
8. Refill the transmission pan by pumping more fluid until starts dripping,
9, Start the engine and leave it to run until the transmission fluid reach 40C, open the filling hole and check the fluid level, keep filling until it starts dripping,

The job is complete, NOW YOU HAVE FRESH FLUID INTO YOUR CAR TRANSMISSION AND TORQUE CONVERTER, double check everything you have opened and make not to push the vehicle too much. Take it for a decent drive about 5 minute, come back and check for any leak,

This procedure is not by book or a formal guideline, it is just based on working experience.