Quote:
Originally Posted by Trey T
Hey gang,
I got about 67K miles on the '01 986 and the tranny fluis never had been service. I would like to flush out all of the fluid in there.
1. is there a hose or location of fluid return line?
2. approximately how many qt does the tranny/TC hold?
I have done these flush on other cars (FWD and RWD) w/ and w/o transmission cooler and they all have a return line that dumps the fluid back into the pan.
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1. There are no fluid return lines as the water to oil transmission cooler is mounted directly on the side of the transmission; only coolant lines run to it and back to the main system.
2. Refilling the Tip is a treat (there is no dipstick for these transmissions), it is done from the bottom of the transmission pan using a pump or air displacement system to push the fluid up into the gear box. Dumping the pan and changing the filter, you will need about 6 quarts of fluid because a normal service does not drain the converter. We only use Porsche spec'd fluids as these transmissions are sensitive to what kind of fluid is in them. As others have mentioned, you need to bring the car up to temp while up in the air, run the trans through the gears, and let any excess fluid bleed out of the fill port.
Like other "so-called" lifetime fluids, the Tip should be serviced at least every 50-60k miles.