Quote:
Originally Posted by Smallblock454
According to the german Porsche forum and Tim Eckard who invented a presuized flush system the 986 and 986 AT ATF can be flushed with the engine and transmission in the car. But it is not that easy to do. Tim Eckart offers special adapters for his system. Start
Tim Eckart is like Jake but for pressurized ATF flush systems over here in Germany.
Regards, Markus |
Unfortunately, that is a fluid
exchange system, not a pressure flushing system. Exchange systems adds fluid to a running transmissions as fast as it drains out, which is in fact not even as good as simply drain and refilling the transmission multiple times, and end up wasting large amounts of fluid, which why they are not widely used in North America because they are expensive to buy, waste fluid, and do not do a better job than a simple drain pan and a wrench. Because of how they work, exchange system mix the dirty and clean fluid, requiring using a very large volume fluid to be exchanged to get anywhere near where a true pressure flushing system, which pushes the dirty fluid ahead of the clean, much like the way a pressure brake flushing system cleans out the brake hydraulics with only a minimal amount of new fluid.
Porsche Tiptronics have no external transmission fluid lines, preventing any pressure flushing, only draining and refilling.