F15 ZF 8 speed gearbox maintenance

radrads203 · 06-04-2016, 10:07 AM

Hi guys, heard that our gearbox oil can last lifetime.

.. but i do not believe in that. Any one of you have changes your gearbox fluid ?

r33_RGSport · 06-04-2016, 12:41 PM

Quote:

Originally Posted by radrads203

Hi guys, heard that our gearbox oil can last lifetime.

.. but i do not believe in that. Any one of you have changes your gearbox fluid ?

It is a technically a lifetime.

But I would change it when the odometer hits 100k miles.

Stinkyxy · 06-04-2016, 04:38 PM

42pilot was quoting 30k miles for each change.

alphaod · 06-05-2016, 04:55 PM

I'm planning for 50k so not there yet. I don't believe in lifetime either. I don't want to to wait too long like 100k since I'm bound to introduce problems if I change the fluids then. I guess 30k is doable, but I don't think it's necessary. The ZF fluid isn't exactly cheap.

I'm going for 50k since that's the mileage I've done it on most cars. I've done one at like 90k and I had some transmission problems like slipping. It went away after a while since I guess the electronics got used to the new fluid, but it as unsettling at first.

iconoclast · 06-05-2016, 05:11 PM

Quote:

Originally Posted by r33_RGSport

It is a technically a lifetime.

But I would change it when the odometer hits 100k miles.

i believe that is what audi, bmw and mb consider a "lifetime".

06-04-2016, 10:07 AM	#1
radrads203 Private 12 Rep 55 Posts Drives: 2014 F15 X5 30d Join Date: Oct 2013 Location: Hong Kong iTrader: (0)	F15 ZF 8 speed gearbox maintenance Hi guys, heard that our gearbox oil can last lifetime. .. but i do not believe in that. Any one of you have changes your gearbox fluid ?
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06-04-2016, 04:38 PM	#3
Stinkyxy Lieutenant 152 Rep 458 Posts Drives: X5 Join Date: Nov 2015 Location: Toronto iTrader: (0)	42pilot was quoting 30k miles for each change.
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06-05-2016, 04:55 PM	#4
alphaod Mmmmm… 1150 Rep 2,426 Posts Drives: F15 Join Date: Oct 2011 Location: New York iTrader: (0) Garage List 2015 BMW X5 xDrive50i [10.00]	I'm planning for 50k so not there yet. I don't believe in lifetime either. I don't want to to wait too long like 100k since I'm bound to introduce problems if I change the fluids then. I guess 30k is doable, but I don't think it's necessary. The ZF fluid isn't exactly cheap. I'm going for 50k since that's the mileage I've done it on most cars. I've done one at like 90k and I had some transmission problems like slipping. It went away after a while since I guess the electronics got used to the new fluid, but it as unsettling at first.
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F15 ZF 8 speed gearbox maintenance