E46Fanatics - View Single Post - differential looks wet
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Old 09-24-2012, 09:09 AM   #3
Registered User
Join Date: Aug 2002
Location: Houston Texas
Posts: 850
My Ride: 2004 M3 Cabrio
I have the same problem. Very small leak. From my searches, it's the pinion seal. I was quoted $500 to replace. The DIY says it's a PITA as you have to use a seal press. On my to do list.
Proud owner of '04 M3 Convertible:
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