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Transfer Case Fluid Change
Does anyone know (1) what kind of fluid used for the transfer case? (2) how often should the fluid be changed?
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Hi there
A simple "search" would help... Anyway, have a look here for an example... http://www.xoutpost.com/x5-e53-forum/...hange-diy.html |
That link is for the transmission. I know where the transfer case fill & drain plugs but what I dont know is type of fluid used.
While on the subject, anyone know how to do the front differential fluid change? I know I have to take the skitplate off but... does it also work as support for the front swaybar? |
Transfer case is Dex III synthetic. I had my fluid changed about 10K ago.
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I change all three every 30k.
The front and rear 3rd members are easy - if you have the giant hex bit that fits in the drain plug for them. Make sure you can open the fill plug before you drain them. Drain out the old lube, replace the filler plug (watch out, those are aluminum cases) and pump in some new lube with a $3 pump that screws onto any lube bottle. Fill it until lube is weeping out of the fill hole. I think it is somewhere between 1-2l each. I used Royal Purple lube in the factory recommended weight, which I forget. I *think* it is 75w90 but you need to look it up. |
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T. Case Question...
Hi,
I was looking in the workshop manual and did not see a drain plug for the transfer case and only a filler/check fluid plug. In the book they dont state about draining the fluid out. Does the x5 2001 3.0 have only a filler/check fluid plug and not a drain plug. My Range Rover has a T-case filler and drain plug. I can just pump out the old fluid out of the filler/check level plug and add new. Thanks for any help! |
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On my 2006 X drive, The drain bolt is on the opposite side of the fill bolt with the drain bolt being closer to the bottom of the transfer case housing. I believe I needed a 16mm combo wrench as there wasn't enough room for a ratchet/socket. I simply drove the car on a 20 minute roundtrip up to highway speeds, came home, opened and removed both bolts, let it drain, closed up the drain bolt and filled with new fluid until it started to run out of the fill bolt. Pretty straight forward. I don't even think I had to raise the vehicle. And it's only 1L of fluid so you can be done in about 30 mins or less.
On my car, I chose to stick with the BMW fluid as currently, there is no known compatible fluids. The fluid itself looked like a heavy weight motor oil in color and (cold) viscosity. |
do you have a picture of where these are located fill/drain. also have 06 4x4
thanks |
I use Pentosin Synthetic ATF Fluid for the transfer case and my transmission. I have a 2002 X5 3.0i I try to change the fluids every 30,000 miles. I will take some pics of the fill and drain plugs and post them on here.
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Rear differential fluid changed
6 Attachment(s)
Once this service has never been done in the car, I decided to change
the fluid with fresh (Red line 75/90). I ordered 3quarts from Bavauto.com and said why not sharing a few pics with some viewers. All you need as tools is a: 14mm hex whatever how they called it, any Fluid pump will do the tric and a rachet. The car is a 01 X5 4.4i with 124,813 mileages and this service has never been done in the past. By the way, removing the fill plug/drain plug was easy as helllllll If all services was that easy to access, mechanic shop would have strangled to death to survive. However I'm glad and confident with the new fluid changed because compare to the Old dirty brown fluid that came out from the differential, with the fresh red line yellow color that being filled-up tells it all. |
Yeah, it needed it. The stuff that came out looks like coffee w/ cream. Shot/spent fluid!
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