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Old 09-22-2010, 10:11 AM   #7
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Join Date: Apr 2008
Location: Boston
Posts: 4,971
My Ride: 2003 325xi
Originally Posted by wat3rbug View Post
I guess the issue really boils down to whether I need a 14mm key or 14mm socket because of the lack of room. Since Sears was the only place I found it (part of a kit), $40 is a bit to spend only to find out it won't do the job. I have the fluid and a pump because I expected I would be changing the fluid.

The other is that I'm generally paranoid after I do any work and like to know what to look, and listen for to see if anything is wrong. I thought maybe some whining or something if the diff was starved.

I'm going to be back under the car this weekend because I have to change the oil filter housing casket (the one at the block).
I got a 12mm, 14mm, and 17mm male hex key set (1/2" drive) from autozone a few years back for around $10.

You should be looking for leaks around the input seal of the diff. If that is dry, and you still have about 3/4 of a liter of fluid in there, I wouldn't worry about your diff.

I would be more worried about your TC fluid.
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