Quote:
Originally Posted by Chief inspector
It needs done with the Manufacturers diagnostic machine:
1) You cant read and don't actually know which temperature to drop or check the level at.
2) It needs an adaption run with the new fluid.
3) The AWF8 has a duplex level check and drain plug, you remove the outer plug to dump it and replace it then remove the inner plug and if the temperature is right, and no fluid comes out, you can add more, you can attach a small hose to this and add more fluid, monitoring the temperature to get more of a clean.
You cant just drop 2 litres out a hot transmission and dump in 2 litres of fresh stuff and expect it to work, which was what I was getting at and you seem (as usual) to have taken exception to.
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You can make a meal of it or just do it properly. I know exactly how to change the fluid in these, and many other, transmissions.
The transmission temperature needs to be between 40 and 45C for manual checking of final level, after a change. This can be determined through any scan tool commonly available or by using a thermometer on the sump.
The fluid is drained by removing the sump plug, which is a two piece plug with a separate centre that consists of the filler/level pipe that protrudes a set distance up to the desired oil level. To refill the sump, the same amount of oil that was drained plus a bit, maybe an extra pint, is pumped up through a pipe with an adapter fitted to the centre hole of the plug. Run it through the gears while still jacked. Surplus allowed to drain when the adapter is removed. Then car run on road until desired temp is exceeded and returned to base. When the temp gets within range, the centre of the plug is again removed and surplus allowed to drain. Plug replaced and torque of outer and inner plug checked.
That’s all there is to it. Not the simplest but not rocket science either. No special tools required unless you count the scan tool [commonly available these days]. It is a procedure that has been used on Aisin Warner transmissions for many years, including Toyota/Lexus and Audi/VW applications of both six and eight speed, front and rear wheel drive variants.