"Rear differential is seeping fluid near right drive flange"

bvanderhaar · 06-23-2015, 10:15 AM

This was noted on my most recent service invoice. Looking at RealOEM:
http://www.realoem.com/bmw/enUS/show...diagId=33_1250

Is #13 and #14 the ones that need replacement? Is this a hard DIY? The service advisor told me it's not bad....should I just leave it and check the oil levels/change the oil more often?

I found this via a google search - sounds like the dealer just replaces the whole diff?
http://www.zpost.com/forums/showthread.php?t=524602

Efthreeoh · 06-27-2015, 09:30 AM

Diff leaks like that look far worse than they really are. Over tens of thousands of miles you'll not loose much fluid.

bvanderhaar · 07-06-2015, 08:18 PM

Thank you for responding. I won't worry for now.

Greyfox · 07-07-2015, 08:07 AM

Quote:

Originally Posted by bvanderhaar

Thank you for responding. I won't worry for now.

When was the last time you changed the gear oil? After time the lube will start breaking down getting thinner and thinner causing some seepage.

bvanderhaar · 07-12-2015, 12:22 AM

Quote:

Originally Posted by Greyfox

When was the last time you changed the gear oil? After time the lube will start breaking down getting thinner and thinner causing some seepage.

I haven't changed it. 92k miles. I plan to change the oil in both diffs in the fall.

06-23-2015, 10:15 AM	#1
bvanderhaar Private 10 Rep 59 Posts Drives: 2008 BMW 328xi Join Date: Nov 2013 Location: Grand Rapids, MI iTrader: (0)	"Rear differential is seeping fluid near right drive flange" This was noted on my most recent service invoice. Looking at RealOEM: http://www.realoem.com/bmw/enUS/show...diagId=33_1250 Is #13 and #14 the ones that need replacement? Is this a hard DIY? The service advisor told me it's not bad....should I just leave it and check the oil levels/change the oil more often? I found this via a google search - sounds like the dealer just replaces the whole diff? http://www.zpost.com/forums/showthread.php?t=524602
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06-27-2015, 09:30 AM	#2
Efthreeoh General 19990 Rep 19,300 Posts Drives: The E90 + Z4 Coupe & Z3 R'ster Join Date: May 2012 Location: Verginny iTrader: (0)	Diff leaks like that look far worse than they really are. Over tens of thousands of miles you'll not loose much fluid. __________________ A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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07-06-2015, 08:18 PM	#3
bvanderhaar Private 10 Rep 59 Posts Drives: 2008 BMW 328xi Join Date: Nov 2013 Location: Grand Rapids, MI iTrader: (0)	Thank you for responding. I won't worry for now.
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