Rear Differential Being Replaced

BoxKing · 06-19-2018, 09:10 AM

Took MY17 F82 ZCP in yesterday (25,000 miles) to have a "whining" noise looked at, that would increase in tone with acceleration, and remain constant until the RPMs came to almost a halt. It took only minutes for the technician to determine that I required a new rear diff (under warranty.)

My question is; do I/they need to treat the replacement differential the same way they did for the 1200 mile break in service? The tech wasnt certain on how to answer this question, but my thought is the answer would be yes. Anyone have this done, or have insight as to what I should expect from the service center?

MicaCeli · 06-19-2018, 09:50 PM

yes, its a clutch diff, clutches wear and get junk in the oil from break-in.

BoxKing · 06-20-2018, 11:53 AM

Quote:

Originally Posted by MicaCeli

yes, its a clutch diff, clutches wear and get junk in the oil from break-in.

Alright, then I will make the request for them to honor another differential oil change at or around 1,200 miles.

06-19-2018, 09:10 AM	#1
BoxKing I Rock Your Girls Box 293 Rep 662 Posts Drives: M4 F82 ZCP AW Join Date: Nov 2016 Location: Philadelphia iTrader: (1)	Rear Differential Being Replaced Took MY17 F82 ZCP in yesterday (25,000 miles) to have a "whining" noise looked at, that would increase in tone with acceleration, and remain constant until the RPMs came to almost a halt. It took only minutes for the technician to determine that I required a new rear diff (under warranty.) My question is; do I/they need to treat the replacement differential the same way they did for the 1200 mile break in service? The tech wasnt certain on how to answer this question, but my thought is the answer would be yes. Anyone have this done, or have insight as to what I should expect from the service center?
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06-19-2018, 09:50 PM	#2
MicaCeli First Lieutenant 186 Rep 339 Posts Drives: 07 e90 335i Join Date: Jul 2010 Location: Ellicott City, MD iTrader: (0) Garage List 2000 996 C4 [0.00] 2007 335i [0.00] 2001 B5 S4 Avant [0.00]	yes, its a clutch diff, clutches wear and get junk in the oil from break-in.
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