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      01-19-2023, 02:37 PM   #1
skohlhepp
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Drives: BMW 535i
Join Date: Mar 2021
Location: FL

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ZF 8HP Transmission Service

Hi all, I am sure this topic has been discussed a bunch here and elsewhere. I'm driving a 2012 535i with close to 110k miles on it now. It has been FBO Pure Stage 2 with the corresponding MHD OTS engine map and an XHP Stage 3 Transmission tune since about 80k miles.

What if anything should or could I do in terms of preventative maintenance for the transmission? FCP Euro sells the kit with the new plastic pan & filter & ZF LifeGuard fluid but I have only read of folks doing that maintenance at a much lower mileage than mine. Is it best to just ride it out until something breaks or could I (Or pay a shop to) still safely change out the fluid? The adaptation values and quickcharge times are still within a good range according to the XHP diagnostics.

Thanks!
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