How much did you pay for your ATF change?

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10-07-2021, 03:15 PM

#11

Weebl

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Quote:

Originally Posted by mhoran89

Yes. I did the front and rear diff fluid at 70K on my Q7. The center was done sometime around 45K and I will be doing that again shortly if I do not get into a newer lower mileage '19 Q7....
there should be no need to replace seals. pull the pan/filter, replace, and add new fluid. call it a day.

After ~80k, gaskets start to get hard, won't expand/contract anymore and therefore will leak. The valve body transmissions sleeves were not giving me problems but they were definitely really hard probably not keeping pressure, the Mechatronics sleeve is a common leak point.

All I'm saying is if you pull off the transmission pan from 50k-80k+ and you plan on keeping it way over 100k that it is way cheaper to replace $40 worth of parts vs dropping the pan again. The time to do the seals, sleeve and torque it all back together should be under an hour.

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10-08-2021, 07:22 AM

#12

mhoran89

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Quote:

Originally Posted by Weebl

there is no "mechatronic" in a zf 8-speed trans as far as I know. I am not sure there is anything to do in regards to a true auto box tranny other than replace fluid and filter. if the pan is the filter itself, as it is with my Q7, a new pan gasket goes in too. that's about it. maybe I am confused, or maybe we are not talking about the same thing.